fix most alerts reported by LGTM on OOXML

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1843481 13f79535-47bb-0310-9956-ffa450edef68

src/ooxml/java/org/apache/poi/poifs/crypt/dsig/SignatureConfig.java

@@ -63,7 +63,7 @@ import org.w3c.dom.events.EventListener;
  * This class bundles the configuration options used for the existing
  * signature facets.
  * Apart of the thread local members (e.g. opc-package) most values will probably be constant, so
- * it might be configured centrally (e.g. by spring) 
+ * it might be configured centrally (e.g. by spring)
  */
 @SuppressWarnings({"unused","WeakerAccess"})
 public class SignatureConfig {
@@ -76,14 +76,14 @@ public class SignatureConfig {
 
 
     public interface SignatureConfigurable {
-        void setSignatureConfig(SignatureConfig signatureConfig);        
+        void setSignatureConfig(SignatureConfig signatureConfig);
     }
 
     private ThreadLocal<OPCPackage> opcPackage = new ThreadLocal<>();
     private ThreadLocal<XMLSignatureFactory> signatureFactory = new ThreadLocal<>();
     private ThreadLocal<KeyInfoFactory> keyInfoFactory = new ThreadLocal<>();
     private ThreadLocal<Provider> provider = new ThreadLocal<>();
-    
+
     private List<SignatureFacet> signatureFacets = new ArrayList<>();
     private HashAlgorithm digestAlgo = HashAlgorithm.sha256;
     private Date executionTime = new Date();
@@ -96,11 +96,11 @@ public class SignatureConfig {
     private SignaturePolicyService signaturePolicyService;
     private URIDereferencer uriDereferencer;
     private String canonicalizationMethod = CanonicalizationMethod.INCLUSIVE;
-    
+
     private boolean includeEntireCertificateChain = true;
     private boolean includeIssuerSerial;
     private boolean includeKeyValue;
-    
+
     /**
      * the time-stamp service used for XAdES-T and XAdES-X.
      */
@@ -123,7 +123,7 @@ public class SignatureConfig {
     private String tspRequestPolicy = "1.3.6.1.4.1.13762.3";
     private String userAgent = "POI XmlSign Service TSP Client";
     private String proxyUrl;
-    
+
     /**
      * the optional revocation data service used for XAdES-C and XAdES-X-L.
      * When <code>null</code> the signature will be limited to XAdES-T only.
@@ -148,16 +148,16 @@ public class SignatureConfig {
      * <code>null</code> value will trigger an automatically generated signature Id.
      */
     private String packageSignatureId = "idPackageSignature";
-    
+
     /**
      * Gives back the human-readable description of what the citizen will be
      * signing. The default value is "Office OpenXML Document".
      */
     private String signatureDescription = "Office OpenXML Document";
-    
+
     /**
      * The process of signing includes the marshalling of xml structures.
-     * This also includes the canonicalization. Currently this leads to problems 
+     * This also includes the canonicalization. Currently this leads to problems
      * with certain namespaces, so this EventListener is used to interfere
      * with the marshalling process.
      */
@@ -177,7 +177,7 @@ public class SignatureConfig {
 
     /**
      * Inits and checks the config object.
-     * If not set previously, complex configuration properties also get 
+     * If not set previously, complex configuration properties also get
      * created/initialized via this initialization call.
      *
      * @param onlyValidation if true, only a subset of the properties
@@ -202,7 +202,7 @@ public class SignatureConfig {
             namespacePrefixes.put(OO_DIGSIG_NS, "mdssi");
             namespacePrefixes.put(XADES_132_NS, "xd");
         }
-        
+
         if (onlyValidation) {
             return;
         }
@@ -210,15 +210,15 @@ public class SignatureConfig {
         if (signatureMarshalListener == null) {
             signatureMarshalListener = new SignatureMarshalListener();
         }
-        
+
         if (signatureMarshalListener instanceof SignatureConfigurable) {
             ((SignatureConfigurable)signatureMarshalListener).setSignatureConfig(this);
         }
-        
+
         if (tspService != null) {
             tspService.setSignatureConfig(this);
         }
-        
+
         if (signatureFacets.isEmpty()) {
             addSignatureFacet(new OOXMLSignatureFacet());
             addSignatureFacet(new KeyInfoSignatureFacet());
@@ -230,14 +230,14 @@ public class SignatureConfig {
             sf.setSignatureConfig(this);
         }
     }
-    
+
     /**
-     * @param signatureFacet the signature facet is appended to facet list 
+     * @param signatureFacet the signature facet is appended to facet list
      */
     public void addSignatureFacet(SignatureFacet signatureFacet) {
         signatureFacets.add(signatureFacet);
     }
-    
+
     /**
      * @return the list of facets, may be empty when the config object is not initialized
      */
@@ -265,14 +265,14 @@ public class SignatureConfig {
     public void setDigestAlgo(HashAlgorithm digestAlgo) {
         this.digestAlgo = digestAlgo;
     }
-    
+
     /**
      * @return the opc package to be used by this thread, stored as thread-local
      */
     public OPCPackage getOpcPackage() {
         return opcPackage.get();
     }
-    
+
     /**
      * @param opcPackage the opc package to be handled by this thread, stored as thread-local
      */
@@ -398,14 +398,14 @@ public class SignatureConfig {
     public void setSignatureDescription(String signatureDescription) {
         this.signatureDescription = signatureDescription;
     }
-    
+
     /**
      * @return the default canonicalization method, defaults to INCLUSIVE
      */
     public String getCanonicalizationMethod() {
         return canonicalizationMethod;
     }
-    
+
     /**
      * @param canonicalizationMethod the default canonicalization method
      */
@@ -459,15 +459,15 @@ public class SignatureConfig {
     public void setTspUrl(String tspUrl) {
         this.tspUrl = tspUrl;
     }
-    
+
     /**
      * @return if true, uses timestamp-request/response mimetype,
-     * if false, timestamp-query/reply mimetype 
+     * if false, timestamp-query/reply mimetype
      */
     public boolean isTspOldProtocol() {
         return tspOldProtocol;
     }
-    
+
     /**
      * @param tspOldProtocol defines the timestamp-protocol mimetype
      * @see #isTspOldProtocol
@@ -475,7 +475,7 @@ public class SignatureConfig {
     public void setTspOldProtocol(boolean tspOldProtocol) {
         this.tspOldProtocol = tspOldProtocol;
     }
-    
+
     /**
      * @return the hash algorithm to be used for the timestamp entry.
      * Defaults to the hash algorithm of the main entry
@@ -483,7 +483,7 @@ public class SignatureConfig {
     public HashAlgorithm getTspDigestAlgo() {
         return nvl(tspDigestAlgo,digestAlgo);
     }
-    
+
     /**
      * @param tspDigestAlgo the algorithm to be used for the timestamp entry.
      * if <code>null</code>, the hash algorithm of the main entry
@@ -499,7 +499,7 @@ public class SignatureConfig {
     public String getProxyUrl() {
         return proxyUrl;
     }
-    
+
     /**
      * @param proxyUrl the proxy url to be used for all communications.
      * Currently this affects the timestamp service
@@ -507,56 +507,56 @@ public class SignatureConfig {
     public void setProxyUrl(String proxyUrl) {
         this.proxyUrl = proxyUrl;
     }
-    
+
     /**
      * @return the timestamp service. Defaults to {@link TSPTimeStampService}
      */
     public TimeStampService getTspService() {
         return tspService;
     }
-    
+
     /**
      * @param tspService the timestamp service
      */
     public void setTspService(TimeStampService tspService) {
         this.tspService = tspService;
     }
-    
+
     /**
      * @return the user id for the timestamp service - currently only basic authorization is supported
      */
     public String getTspUser() {
         return tspUser;
     }
-    
+
     /**
      * @param tspUser the user id for the timestamp service - currently only basic authorization is supported
      */
     public void setTspUser(String tspUser) {
         this.tspUser = tspUser;
     }
-    
+
     /**
      * @return the password for the timestamp service
      */
     public String getTspPass() {
         return tspPass;
     }
-    
+
     /**
      * @param tspPass the password for the timestamp service
      */
     public void setTspPass(String tspPass) {
         this.tspPass = tspPass;
     }
-    
+
     /**
      * @return the validator for the timestamp service (certificate)
      */
     public TimeStampServiceValidator getTspValidator() {
         return tspValidator;
     }
-    
+
     /**
      * @param tspValidator the validator for the timestamp service (certificate)
      */
@@ -586,7 +586,7 @@ public class SignatureConfig {
     public HashAlgorithm getXadesDigestAlgo() {
         return nvl(xadesDigestAlgo,digestAlgo);
     }
-    
+
     /**
      * @param xadesDigestAlgo hash algorithm used for XAdES.
      * When <code>null</code>, defaults to {@link #getDigestAlgo()}
@@ -611,7 +611,7 @@ public class SignatureConfig {
     public String getUserAgent() {
         return userAgent;
     }
-    
+
     /**
      * @param userAgent the user agent used for http communication (e.g. to the TSP)
      */
@@ -626,7 +626,7 @@ public class SignatureConfig {
     public String getTspRequestPolicy() {
         return tspRequestPolicy;
     }
-    
+
     /**
      * @param tspRequestPolicy the asn.1 object id for the tsp request policy.
      */
@@ -636,7 +636,7 @@ public class SignatureConfig {
 
     /**
      * @return true, if the whole certificate chain is included in the signature.
-     * When false, only the signer cert will be included 
+     * When false, only the signer cert will be included
      */
     public boolean isIncludeEntireCertificateChain() {
         return includeEntireCertificateChain;
@@ -728,7 +728,7 @@ public class SignatureConfig {
      * Make sure the DN is encoded using the same order as present
      * within the certificate. This is an Office2010 work-around.
      * Should be reverted back.
-     * 
+     *
      * XXX: not correct according to RFC 4514.
      *
      * @return when true, the issuer DN is used instead of the issuer X500 principal
@@ -744,7 +744,7 @@ public class SignatureConfig {
         this.xadesIssuerNameNoReverseOrder = xadesIssuerNameNoReverseOrder;
     }
 
-    
+
     /**
      * @return the event listener which is active while xml structure for
      * the signature is created.
@@ -813,8 +813,8 @@ public class SignatureConfig {
 
     /**
      * Converts the digest algorithm - currently only sha* and ripemd160 is supported.
-     * MS Office only supports sha1, sha256, sha384, sha512. 
-     * 
+     * MS Office only supports sha1, sha256, sha384, sha512.
+     *
      * @param digestAlgo the digest algorithm
      * @return the uri for the given digest
      */
@@ -835,7 +835,7 @@ public class SignatureConfig {
      * Converts the digest algorithm ur - currently only sha* and ripemd160 is supported.
      * MS Office only supports sha1, sha256, sha384, sha512.
      *
-     * @param digestAlgo the digest algorithm uri
+     * @param digestMethodUri the digest algorithm uri
      * @return the hash algorithm for the given digest
      */
     private static HashAlgorithm getDigestMethodAlgo(String digestMethodUri) {
@@ -895,7 +895,7 @@ public class SignatureConfig {
     public void setSignatureFactory(XMLSignatureFactory signatureFactory) {
         this.signatureFactory.set(signatureFactory);
     }
-    
+
     /**
      * @return the xml signature factory (thread-local)
      */
@@ -914,7 +914,7 @@ public class SignatureConfig {
     public void setKeyInfoFactory(KeyInfoFactory keyInfoFactory) {
         this.keyInfoFactory.set(keyInfoFactory);
     }
-    
+
     /**
      * @return the key factory (thread-local)
      */
@@ -934,10 +934,10 @@ public class SignatureConfig {
      * <li>the Santuario xmlsec provider</li>
      * <li>the JDK xmlsec provider</li>
      * </ul>
-     * 
+     *
      * For signing the classes are linked against the Santuario xmlsec, so this might
      * only work for validation (not tested).
-     *  
+     *
      * @return the xml dsig provider
      */
     public Provider getProvider() {
@@ -948,7 +948,7 @@ public class SignatureConfig {
                 // Santuario xmlsec
                 "org.apache.jcp.xml.dsig.internal.dom.XMLDSigRI",
                 // JDK xmlsec
-                "org.jcp.xml.dsig.internal.dom.XMLDSigRI"         
+                "org.jcp.xml.dsig.internal.dom.XMLDSigRI"
             };
             for (String pn : dsigProviderNames) {
                 if (pn == null) {
@@ -966,7 +966,7 @@ public class SignatureConfig {
         if (prov == null) {
             throw new RuntimeException("JRE doesn't support default xml signature provider - set jsr105Provider system property!");
         }
-        
+
         return prov;
     }
 

src/ooxml/java/org/apache/poi/xdgf/usermodel/XDGFShape.java

@@ -116,13 +116,15 @@ public class XDGFShape extends XDGFSheet {
         _parentPage = parentPage;
 
         TextType text = shapeSheet.getText();
-        if (text != null)
+        if (text != null) {
             _text = new XDGFText(text, this);
+        }
 
         if (shapeSheet.isSetShapes()) {
             _shapes = new ArrayList<>();
-            for (ShapeSheetType shape : shapeSheet.getShapes().getShapeArray())
+            for (ShapeSheetType shape : shapeSheet.getShapes().getShapeArray()) {
                 _shapes.add(new XDGFShape(this, shape, parentPage, document));
+            }
         }
 
         readProperties();
@@ -130,10 +132,11 @@ public class XDGFShape extends XDGFSheet {
 
     @Override
     public String toString() {
-        if (_parentPage instanceof XDGFMasterContents)
+        if (_parentPage instanceof XDGFMasterContents) {
             return _parentPage + ": <Shape ID=\"" + getID() + "\">";
-        else
+        } else {
             return "<Shape ID=\"" + getID() + "\">";
+        }
     }
 
     protected void readProperties() {
@@ -181,9 +184,10 @@ public class XDGFShape extends XDGFSheet {
 
         if (obj.isSetMaster()) {
             _master = pageContents.getMasterById(obj.getMaster());
-            if (_master == null)
+            if (_master == null) {
                 throw XDGFException.error("refers to non-existant master "
                         + obj.getMaster(), this);
+            }
 
             /*
              * If a master has one top-level shape, a shape that inherits from
@@ -209,11 +213,12 @@ public class XDGFShape extends XDGFSheet {
             }
 
         } else if (obj.isSetMasterShape()) {
-            _masterShape = master.getShapeById(obj.getMasterShape());
-            if (_masterShape == null)
+            _masterShape = (master == null) ? null : master.getShapeById(obj.getMasterShape());
+            if (_masterShape == null) {
                 throw XDGFException.error(
                         "refers to non-existant master shape "
                                 + obj.getMasterShape(), this);
+            }
 
         }
 
@@ -229,21 +234,24 @@ public class XDGFShape extends XDGFSheet {
 
     protected void setupSectionMasters() {
 
-        if (_masterShape == null)
+        if (_masterShape == null) {
             return;
+        }
 
         try {
             for (Entry<String, XDGFSection> section : _sections.entrySet()) {
                 XDGFSection master = _masterShape.getSection(section.getKey());
-                if (master != null)
+                if (master != null) {
                     section.getValue().setupMaster(master);
+                }
             }
 
             for (Entry<Long, GeometrySection> section : _geometry.entrySet()) {
                 GeometrySection master = _masterShape.getGeometryByIdx(section
                         .getKey());
-                if (master != null)
+                if (master != null) {
                     section.getValue().setupMaster(master);
+                }
             }
         } catch (POIXMLException e) {
             throw XDGFException.wrap(this.toString(), e);
@@ -266,8 +274,9 @@ public class XDGFShape extends XDGFSheet {
 
     public String getTextAsString() {
         XDGFText text = getText();
-        if (text == null)
+        if (text == null) {
             return "";
+        }
 
         return text.getTextContent();
     }
@@ -294,7 +303,7 @@ public class XDGFShape extends XDGFSheet {
     }
 
     /**
-     * Only available if this shape is a shape group, may be null 
+     * Only available if this shape is a shape group, may be null
      */
     // -> May be null
     public List<XDGFShape> getShapes() {
@@ -304,28 +313,32 @@ public class XDGFShape extends XDGFSheet {
     // unique to this shape on the page?
     public String getName() {
         String name = getXmlObject().getName();
-        if (name == null)
+        if (name == null) {
             return "";
+        }
         return name;
     }
 
     // unique to this shape on the page?
     public String getShapeType() {
         String type = getXmlObject().getType();
-        if (type == null)
+        if (type == null) {
             return "";
+        }
         return type;
     }
 
     // name of the symbol that this was derived from
     public String getSymbolName() {
 
-        if (_master == null)
+        if (_master == null) {
             return "";
+        }
 
         String name = _master.getName();
-        if (name == null)
+        if (name == null) {
             return "";
+        }
 
         return name;
     }
@@ -345,8 +358,9 @@ public class XDGFShape extends XDGFSheet {
         XDGFShape top = null;
         if (_parent != null) {
             top = _parent.getTopmostParentShape();
-            if (top == null)
+            if (top == null) {
                 top = _parent;
+            }
         }
 
         return top;
@@ -381,190 +395,223 @@ public class XDGFShape extends XDGFSheet {
     }
 
     public XDGFText getText() {
-        if (_text == null && _masterShape != null)
+        if (_text == null && _masterShape != null) {
             return _masterShape.getText();
+        }
 
         return _text;
     }
 
     public Double getPinX() {
-        if (_pinX == null && _masterShape != null)
+        if (_pinX == null && _masterShape != null) {
             return _masterShape.getPinX();
+        }
 
-        if (_pinX == null)
+        if (_pinX == null) {
             throw XDGFException.error("PinX not set!", this);
+        }
 
         return _pinX;
     }
 
     public Double getPinY() {
-        if (_pinY == null && _masterShape != null)
+        if (_pinY == null && _masterShape != null) {
             return _masterShape.getPinY();
+        }
 
-        if (_pinY == null)
+        if (_pinY == null) {
             throw XDGFException.error("PinY not specified!", this);
+        }
 
         return _pinY;
     }
 
     public Double getWidth() {
-        if (_width == null && _masterShape != null)
+        if (_width == null && _masterShape != null) {
             return _masterShape.getWidth();
+        }
 
-        if (_width == null)
+        if (_width == null) {
             throw XDGFException.error("Width not specified!", this);
+        }
 
         return _width;
     }
 
     public Double getHeight() {
-        if (_height == null && _masterShape != null)
+        if (_height == null && _masterShape != null) {
             return _masterShape.getHeight();
+        }
 
-        if (_height == null)
+        if (_height == null) {
             throw XDGFException.error("Height not specified!", this);
+        }
 
         return _height;
     }
 
     public Double getLocPinX() {
-        if (_locPinX == null && _masterShape != null)
+        if (_locPinX == null && _masterShape != null) {
             return _masterShape.getLocPinX();
+        }
 
-        if (_locPinX == null)
+        if (_locPinX == null) {
             throw XDGFException.error("LocPinX not specified!", this);
+        }
 
         return _locPinX;
     }
 
     public Double getLocPinY() {
-        if (_locPinY == null && _masterShape != null)
+        if (_locPinY == null && _masterShape != null) {
             return _masterShape.getLocPinY();
+        }
 
-        if (_locPinY == null)
+        if (_locPinY == null) {
             throw XDGFException.error("LocPinY not specified!", this);
+        }
 
         return _locPinY;
     }
 
     public Double getBeginX() {
-        if (_beginX == null && _masterShape != null)
+        if (_beginX == null && _masterShape != null) {
             return _masterShape.getBeginX();
+        }
 
         return _beginX;
     }
 
     public Double getBeginY() {
-        if (_beginY == null && _masterShape != null)
+        if (_beginY == null && _masterShape != null) {
             return _masterShape.getBeginY();
+        }
 
         return _beginY;
     }
 
     public Double getEndX() {
-        if (_endX == null && _masterShape != null)
+        if (_endX == null && _masterShape != null) {
             return _masterShape.getEndX();
+        }
 
         return _endX;
     }
 
     public Double getEndY() {
-        if (_endY == null && _masterShape != null)
+        if (_endY == null && _masterShape != null) {
             return _masterShape.getEndY();
+        }
 
         return _endY;
     }
 
     public Double getAngle() {
-        if (_angle == null && _masterShape != null)
+        if (_angle == null && _masterShape != null) {
             return _masterShape.getAngle();
+        }
 
         return _angle;
     }
 
     public Boolean getFlipX() {
-        if (_flipX == null && _masterShape != null)
+        if (_flipX == null && _masterShape != null) {
             return _masterShape.getFlipX();
+        }
 
         return _flipX;
     }
 
     public Boolean getFlipY() {
-        if (_flipY == null && _masterShape != null)
+        if (_flipY == null && _masterShape != null) {
             return _masterShape.getFlipY();
+        }
 
         return _flipY;
     }
 
     public Double getTxtPinX() {
         if (_txtPinX == null && _masterShape != null
-                && _masterShape._txtPinX != null)
+                && _masterShape._txtPinX != null) {
             return _masterShape._txtPinX;
+        }
 
-        if (_txtPinX == null)
+        if (_txtPinX == null) {
             return getWidth() * 0.5;
+        }
 
         return _txtPinX;
     }
 
     public Double getTxtPinY() {
         if (_txtLocPinY == null && _masterShape != null
-                && _masterShape._txtLocPinY != null)
+                && _masterShape._txtLocPinY != null) {
             return _masterShape._txtLocPinY;
+        }
 
-        if (_txtPinY == null)
+        if (_txtPinY == null) {
             return getHeight() * 0.5;
+        }
 
         return _txtPinY;
     }
 
     public Double getTxtLocPinX() {
         if (_txtLocPinX == null && _masterShape != null
-                && _masterShape._txtLocPinX != null)
+                && _masterShape._txtLocPinX != null) {
             return _masterShape._txtLocPinX;
+        }
 
-        if (_txtLocPinX == null)
+        if (_txtLocPinX == null) {
             return getTxtWidth() * 0.5;
+        }
 
         return _txtLocPinX;
     }
 
     public Double getTxtLocPinY() {
         if (_txtLocPinY == null && _masterShape != null
-                && _masterShape._txtLocPinY != null)
+                && _masterShape._txtLocPinY != null) {
             return _masterShape._txtLocPinY;
+        }
 
-        if (_txtLocPinY == null)
+        if (_txtLocPinY == null) {
             return getTxtHeight() * 0.5;
+        }
 
         return _txtLocPinY;
     }
 
     public Double getTxtAngle() {
-        if (_txtAngle == null && _masterShape != null)
+        if (_txtAngle == null && _masterShape != null) {
             return _masterShape.getTxtAngle();
+        }
 
         return _txtAngle;
     }
 
     public Double getTxtWidth() {
         if (_txtWidth == null && _masterShape != null
-                && _masterShape._txtWidth != null)
+                && _masterShape._txtWidth != null) {
             return _masterShape._txtWidth;
+        }
 
-        if (_txtWidth == null)
+        if (_txtWidth == null) {
             return getWidth();
+        }
 
         return _txtWidth;
     }
 
     public Double getTxtHeight() {
         if (_txtHeight == null && _masterShape != null
-                && _masterShape._txtHeight != null)
+                && _masterShape._txtHeight != null) {
             return _masterShape._txtHeight;
+        }
 
-        if (_txtHeight == null)
+        if (_txtHeight == null) {
             return getHeight();
+        }
 
         return _txtHeight;
     }
@@ -573,8 +620,9 @@ public class XDGFShape extends XDGFSheet {
     public Integer getLineCap() {
 
         Integer lineCap = super.getLineCap();
-        if (lineCap != null)
+        if (lineCap != null) {
             return lineCap;
+        }
 
         // get from master
         if (_masterShape != null) {
@@ -589,8 +637,9 @@ public class XDGFShape extends XDGFSheet {
     public Color getLineColor() {
 
         Color lineColor = super.getLineColor();
-        if (lineColor != null)
+        if (lineColor != null) {
             return lineColor;
+        }
 
         // get from master
         if (_masterShape != null) {
@@ -605,8 +654,9 @@ public class XDGFShape extends XDGFSheet {
     public Integer getLinePattern() {
 
         Integer linePattern = super.getLinePattern();
-        if (linePattern != null)
+        if (linePattern != null) {
             return linePattern;
+        }
 
         // get from master
         if (_masterShape != null) {
@@ -621,8 +671,9 @@ public class XDGFShape extends XDGFSheet {
     public Double getLineWeight() {
 
         Double lineWeight = super.getLineWeight();
-        if (lineWeight != null)
+        if (lineWeight != null) {
             return lineWeight;
+        }
 
         // get from master
         if (_masterShape != null) {
@@ -637,8 +688,9 @@ public class XDGFShape extends XDGFSheet {
     public Color getFontColor() {
 
         Color fontColor = super.getFontColor();
-        if (fontColor != null)
+        if (fontColor != null) {
             return fontColor;
+        }
 
         // get from master
         if (_masterShape != null) {
@@ -653,8 +705,9 @@ public class XDGFShape extends XDGFSheet {
     public Double getFontSize() {
 
         Double fontSize = super.getFontSize();
-        if (fontSize != null)
+        if (fontSize != null) {
             return fontSize;
+        }
 
         // get from master
         if (_masterShape != null) {
@@ -791,11 +844,11 @@ public class XDGFShape extends XDGFSheet {
     public Rectangle2D.Double getBounds() {
         return new Rectangle2D.Double(0, 0, getWidth(), getHeight());
     }
-    
+
     /**
      * @return returns bounds as a path in local coordinates, which is
      *         userful if you need to transform to global coordinates
-     *         
+     *
      * Warning: Don't use this for 1d objects, and will fail for
      *          infinite line objects
      */
@@ -819,8 +872,9 @@ public class XDGFShape extends XDGFSheet {
      */
     public Path2D.Double getPath() {
         for (GeometrySection geoSection : getGeometrySections()) {
-            if (geoSection.getNoShow())
+            if (geoSection.getNoShow()) {
                 continue;
+            }
 
             return geoSection.getPath(this);
         }
@@ -833,8 +887,9 @@ public class XDGFShape extends XDGFSheet {
      */
     public boolean hasGeometry() {
         for (GeometrySection geoSection : getGeometrySections()) {
-            if (!geoSection.getNoShow())
+            if (!geoSection.getNoShow()) {
                 return true;
+            }
         }
         return false;
     }
@@ -889,8 +944,9 @@ public class XDGFShape extends XDGFSheet {
         tr.concatenate(getParentTransform());
 
         try {
-            if (visitor.accept(this))
+            if (visitor.accept(this)) {
                 visitor.visit(this, tr, level);
+            }
 
             if (_shapes != null) {
                 for (XDGFShape shape : _shapes) {
@@ -914,8 +970,9 @@ public class XDGFShape extends XDGFSheet {
     public void visitShapes(ShapeVisitor visitor, int level) {
 
         try {
-            if (visitor.accept(this))
+            if (visitor.accept(this)) {
                 visitor.visit(this, null, level);
+            }
 
             if (_shapes != null) {
                 for (XDGFShape shape : _shapes) {

src/ooxml/java/org/apache/poi/xdgf/usermodel/XDGFText.java

@@ -52,7 +52,7 @@ public class XDGFText {
         // is a mixed type)
         return ((TextTypeImpl) _text).getStringValue();
     }
-    
+
     /**
      * These are in the shape coordinate system
      *
@@ -82,8 +82,8 @@ public class XDGFText {
     public Path2D.Double getBoundsAsPath() {
 
         Rectangle2D.Double rect = getTextBounds();
-        Double w = rect.getWidth();
-        Double h = rect.getHeight();
+        double w = rect.getWidth();
+        double h = rect.getHeight();
 
         Path2D.Double bounds = new Path2D.Double();
         bounds.moveTo(0, 0);
@@ -94,7 +94,7 @@ public class XDGFText {
 
         return bounds;
     }
-    
+
     /**
      * @return Center of text in local coordinates
      */
@@ -110,8 +110,9 @@ public class XDGFText {
     public void draw(Graphics2D graphics) {
 
         String textContent = getTextContent();
-        if (textContent.length() == 0)
+        if (textContent.length() == 0) {
             return;
+        }
 
         Rectangle2D.Double bounds = getTextBounds();
 
@@ -140,22 +141,25 @@ public class XDGFText {
         }
 
         Double txtAngle = _parent.getTxtAngle();
-        if (txtAngle != null && Math.abs(txtAngle) > 0.01)
+        if (txtAngle != null && Math.abs(txtAngle) > 0.01) {
             graphics.rotate(txtAngle);
+        }
 
         float nextY = 0;
         for (String line : lines) {
 
-            if (line.length() == 0)
+            if (line.length() == 0) {
                 continue;
+            }
 
             TextLayout layout = new TextLayout(line, font, frc);
 
-            if (layout.isLeftToRight())
+            if (layout.isLeftToRight()) {
                 layout.draw(graphics, 0, nextY);
-            else
+            } else {
                 layout.draw(graphics,
                         (float) (bounds.width - layout.getAdvance()), nextY);
+            }
 
             nextY += layout.getAscent() + layout.getDescent()
                     + layout.getLeading();

src/ooxml/java/org/apache/poi/xdgf/util/HierarchyPrinter.java

@@ -22,6 +22,7 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
+import java.io.IOException;
 import java.io.OutputStream;
 import java.io.PrintStream;
 import java.io.UnsupportedEncodingException;
@@ -38,17 +39,17 @@ import org.apache.poi.xdgf.usermodel.shape.ShapeVisitor;
 public class HierarchyPrinter {
 
     public static void printHierarchy(XDGFPage page, File outDir)
-            throws FileNotFoundException, UnsupportedEncodingException {
+            throws FileNotFoundException, UnsupportedEncodingException, IOException {
 
         File pageFile = new File(outDir, "page" + page.getPageNumber() + "-"
                 + Util.sanitizeFilename(page.getName()) + ".txt");
 
-        OutputStream os = new FileOutputStream(pageFile);
-        PrintStream pos = new PrintStream(os, false, "utf-8");
-
-        printHierarchy(page, pos);
-
-        pos.close();
+        try (
+                OutputStream os = new FileOutputStream(pageFile);
+                PrintStream pos = new PrintStream(os, false, "utf-8")
+            ) {
+            printHierarchy(page, pos);
+        }
     }
 
     public static void printHierarchy(XDGFPage page, final PrintStream os) {
@@ -71,7 +72,7 @@ public class HierarchyPrinter {
     }
 
     public static void printHierarchy(XmlVisioDocument document,
-            String outDirname) throws FileNotFoundException, UnsupportedEncodingException {
+            String outDirname) throws FileNotFoundException, UnsupportedEncodingException, IOException {
 
         File outDir = new File(outDirname);
 
@@ -89,8 +90,9 @@ public class HierarchyPrinter {
         String inFilename = args[0];
         String outDir = args[1];
 
-        XmlVisioDocument doc = new XmlVisioDocument(new FileInputStream(
-                inFilename));
-        printHierarchy(doc, outDir);
+        try (FileInputStream is = new FileInputStream(inFilename)) {
+            XmlVisioDocument doc = new XmlVisioDocument(is);
+            printHierarchy(doc, outDir);
+        }
     }
 }

src/ooxml/java/org/apache/poi/xdgf/util/VsdxToPng.java

@@ -21,7 +21,10 @@ import java.awt.Color;
 import java.awt.Graphics2D;
 import java.awt.RenderingHints;
 import java.awt.image.BufferedImage;
-import java.io.*;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
 
 import javax.imageio.ImageIO;
 
@@ -33,7 +36,7 @@ import org.apache.poi.xdgf.usermodel.shape.ShapeRenderer;
 
 /**
  * Converts a Visio diagram to a PNG file.
- * 
+ *
  * As more elements and styles are added/supported the output will get
  * better, but it's very rough right now.
  */
@@ -91,11 +94,8 @@ public class VsdxToPng {
 
         graphics.dispose();
 
-        OutputStream out = new FileOutputStream(outFile);
-        try {
+        try (FileOutputStream out = new FileOutputStream(outFile)) {
             ImageIO.write(img, "png", out);
-        } finally {
-            out.close();
         }
     }
 
@@ -127,8 +127,9 @@ public class VsdxToPng {
             renderer = new ShapeDebuggerRenderer();
         }
 
-        XmlVisioDocument doc = new XmlVisioDocument(new FileInputStream(
-                inFilename));
-        renderToPng(doc, pngDir, 2000 / 11.0, renderer);
+        try (FileInputStream is = new FileInputStream(inFilename)) {
+            XmlVisioDocument doc = new XmlVisioDocument(is);
+            renderToPng(doc, pngDir, 2000 / 11.0, renderer);
+        }
     }
 }

src/ooxml/java/org/apache/poi/xslf/usermodel/XMLSlideShow.java

@@ -36,6 +36,7 @@ import org.apache.poi.ooxml.POIXMLDocument;
 import org.apache.poi.ooxml.POIXMLDocumentPart;
 import org.apache.poi.ooxml.POIXMLException;
 import org.apache.poi.ooxml.extractor.POIXMLPropertiesTextExtractor;
+import org.apache.poi.ooxml.util.PackageHelper;
 import org.apache.poi.openxml4j.exceptions.OpenXML4JException;
 import org.apache.poi.openxml4j.opc.OPCPackage;
 import org.apache.poi.openxml4j.opc.PackagePart;
@@ -50,7 +51,6 @@ import org.apache.poi.util.LittleEndian;
 import org.apache.poi.util.LittleEndianConsts;
 import org.apache.poi.util.POILogFactory;
 import org.apache.poi.util.POILogger;
-import org.apache.poi.ooxml.util.PackageHelper;
 import org.apache.poi.util.Units;
 import org.apache.xmlbeans.XmlException;
 import org.apache.xmlbeans.XmlObject;
@@ -362,7 +362,7 @@ public class XMLSlideShow extends POIXMLDocument
         CTNotesMasterIdListEntry notesMasterId = notesMasterIdList.addNewNotesMasterId();
         notesMasterId.setId(rp.getRelationship().getId());
 
-        Integer themeIndex = 1;
+        int themeIndex = 1;
         // TODO: check if that list can be replaced by idx = Math.max(idx,themeIdx)
         List<Integer> themeIndexList = new ArrayList<>();
         for (POIXMLDocumentPart p : getRelations()) {
@@ -626,7 +626,7 @@ public class XMLSlideShow extends POIXMLDocument
         // TODO: implement!
         throw new UnsupportedOperationException();
     }
-    
+
     @Override
     public POIXMLPropertiesTextExtractor getMetadataTextExtractor() {
         return new POIXMLPropertiesTextExtractor(this);

src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFColor.java

@@ -48,7 +48,7 @@ import org.w3c.dom.Node;
 @Internal
 public class XSLFColor {
     private final static POILogger LOGGER = POILogFactory.getLogger(XSLFColor.class);
-    
+
     private XmlObject _xmlObject;
     private Color _color;
     private CTSchemeColor _phClr;
@@ -128,7 +128,7 @@ public class XSLFColor {
             }
         };
     }
-    
+
     private Color toColor(XmlObject obj, XSLFTheme theme) {
         Color color = null;
         for (XmlObject ch : obj.selectPath("*")) {
@@ -207,19 +207,19 @@ public class XSLFColor {
         if (fill.isSetScrgbClr()) {
             fill.unsetScrgbClr();
         }
-        
+
         if (fill.isSetHslClr()) {
             fill.unsetHslClr();
         }
-        
+
         if (fill.isSetPrstClr()) {
             fill.unsetPrstClr();
         }
-        
+
         if (fill.isSetSchemeClr()) {
             fill.unsetSchemeClr();
         }
-        
+
         if (fill.isSetSysClr()) {
             fill.unsetSysClr();
         }
@@ -227,12 +227,12 @@ public class XSLFColor {
         float[] rgbaf = color.getRGBComponents(null);
         boolean addAlpha = (rgbaf.length == 4 && rgbaf[3] < 1f);
         CTPositiveFixedPercentage alphaPct;
-        
+
         // see office open xml part 4 - 5.1.2.2.30 and 5.1.2.2.32
         if (isInt(rgbaf[0]) && isInt(rgbaf[1]) && isInt(rgbaf[2])) {
             // sRGB has a gamma of 2.2
             CTSRgbColor rgb = fill.addNewSrgbClr();
-            
+
             byte rgbBytes[] = { (byte)color.getRed(), (byte)color.getGreen(), (byte)color.getBlue() };
             rgb.setVal(rgbBytes);
             alphaPct = (addAlpha) ? rgb.addNewAlpha() : null;
@@ -249,14 +249,14 @@ public class XSLFColor {
             alphaPct.setVal((int)(100000 * rgbaf[3]));
         }
     }
-    
+
     /**
      * @return true, if this is an integer color value
      */
     private static boolean isInt(float f) {
-        return Math.abs((f*255f) - Math.rint(f*255f)) < 0.00001f;
+        return Math.abs((f*255d) - Math.rint(f*255d)) < 0.00001;
     }
-    
+
     private int getRawValue(String elem) {
         String query = "declare namespace a='http://schemas.openxmlformats.org/drawingml/2006/main' $this//a:" + elem;
 
@@ -281,9 +281,9 @@ public class XSLFColor {
             }
         }
 
-        return -1;        
+        return -1;
     }
-    
+
     /**
      * Read a perecentage value from the supplied xml bean.
      * Example:
@@ -305,7 +305,7 @@ public class XSLFColor {
      * or -1 if the value is not set
      */
     int getAlpha(){
-        return getPercentageValue("alpha");        
+        return getPercentageValue("alpha");
     }
 
     /**
@@ -413,7 +413,7 @@ public class XSLFColor {
     /**
      * specifies the input color with the specific red component, but with the blue and green color
      * components unchanged
-     * 
+     *
      * @return the value of the red component specified as a
      * percentage with 0% indicating minimal blue and 100% indicating maximum
      * or -1 if the value is not set
@@ -479,7 +479,7 @@ public class XSLFColor {
     /**
      * specifies a darker version of its input color.
      * A 10% shade is 10% of the input color combined with 90% black.
-     * 
+     *
      * @return the value of the shade specified as a
      * percentage with 0% indicating minimal shade and 100% indicating maximum
      * or -1 if the value is not set

src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFNotes.java

@@ -49,9 +49,7 @@ implements Notes<XSLFShape,XSLFTextParagraph> {
      *
      * @param part the package part holding the notes data,
      * the content type must be <code>application/vnd.openxmlformats-officedocument.notes+xml</code>
-     * @param rel  the package relationship holding this notes,
-     * the relationship type must be http://schemas.openxmlformats.org/officeDocument/2006/relationships/notes
-     * 
+     *
      * @since POI 3.14-Beta1
      */
     XSLFNotes(PackagePart part) throws IOException, XmlException {
@@ -77,7 +75,7 @@ implements Notes<XSLFShape,XSLFTextParagraph> {
 
     @Override
     protected String getRootElementName(){
-        return "notes";        
+        return "notes";
     }
 
     @Override

src/ooxml/java/org/apache/poi/xslf/usermodel/XSLFShape.java

@@ -70,7 +70,7 @@ import org.openxmlformats.schemas.presentationml.x2006.main.STPlaceholderType;
 @Beta
 public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
     static final String PML_NS = "http://schemas.openxmlformats.org/presentationml/2006/main";
-    
+
     private final XmlObject _shape;
     private final XSLFSheet _sheet;
     private XSLFShapeContainer _parent;
@@ -82,7 +82,7 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
         _shape = shape;
         _sheet = sheet;
     }
-    
+
     /**
      * @return the xml bean holding this shape's data
      */
@@ -91,11 +91,12 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
         // the (not existing) xmlbeans hierarchy and subclasses shouldn't narrow it's return value
         return _shape;
     }
-    
+
+    @Override
     public XSLFSheet getSheet() {
         return _sheet;
     }
-    
+
     @Override
     public String getShapeName(){
         return getCNvPr().getName();
@@ -124,22 +125,24 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
             PlaceableShape<?,?> ps = (PlaceableShape<?,?>)this;
             ps.setAnchor(sh.getAnchor());
         }
-        
-        
+
+
     }
-    
+
     public void setParent(XSLFShapeContainer parent) {
         this._parent = parent;
     }
-    
+
+    @Override
     public XSLFShapeContainer getParent() {
         return this._parent;
     }
-    
+
     protected PaintStyle getFillPaint() {
         final XSLFTheme theme = getSheet().getTheme();
         final boolean hasPlaceholder = getPlaceholder() != null;
         PropertyFetcher<PaintStyle> fetcher = new PropertyFetcher<PaintStyle>() {
+            @Override
             public boolean fetch(XSLFShape shape) {
                 XSLFFillProperties fp = XSLFPropertiesDelegate.getFillDelegate(shape.getShapeProperties());
                 if (fp == null) {
@@ -150,7 +153,7 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
                     setValue(null);
                     return true;
                 }
-                
+
                 PackagePart pp = shape.getSheet().getPackagePart();
                 PaintStyle paint = selectPaint(fp, null, pp, theme, hasPlaceholder);
                 if (paint != null) {
@@ -167,8 +170,8 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
                     setValue(paint);
                     return true;
                 }
-                
-                
+
+
                 return false;
             }
         };
@@ -181,16 +184,16 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
     protected CTBackgroundProperties getBgPr() {
         return getChild(CTBackgroundProperties.class, PML_NS, "bgPr");
     }
-    
+
     @SuppressWarnings("unused")
     protected CTStyleMatrixReference getBgRef() {
         return getChild(CTStyleMatrixReference.class, PML_NS, "bgRef");
     }
-    
+
     protected CTGroupShapeProperties getGrpSpPr() {
         return getChild(CTGroupShapeProperties.class, PML_NS, "grpSpPr");
     }
-    
+
     protected CTNonVisualDrawingProps getCNvPr() {
         if (_nvPr == null) {
             String xquery = "declare namespace p='http://schemas.openxmlformats.org/presentationml/2006/main' .//*/p:cNvPr";
@@ -239,7 +242,7 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
     public Placeholder getPlaceholder() {
         return getPlaceholderDetails().getPlaceholder();
     }
-    
+
     /**
      * @see PlaceholderDetails#setPlaceholder(Placeholder)
      */
@@ -268,7 +271,9 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
     @SuppressWarnings({"unchecked", "WeakerAccess"})
     protected <T extends XmlObject> T selectProperty(Class<T> resultClass, String xquery) {
         XmlObject[] rs = getXmlObject().selectPath(xquery);
-        if (rs.length == 0) return null;
+        if (rs.length == 0) {
+            return null;
+        }
         return (resultClass.isInstance(rs[0])) ? (T)rs[0] : null;
     }
 
@@ -281,7 +286,7 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
      * <li>slideLayout
      * <li>slideMaster
      * </ol>
-     * 
+     *
      * Currently themes and their defaults aren't correctly handled
      *
      * @param visitor the object that collects the desired property
@@ -299,7 +304,7 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
             return false;
         }
         MasterSheet<XSLFShape,XSLFTextParagraph> sm = getSheet().getMasterSheet();
-        
+
         // try slide layout
         if (sm instanceof XSLFSlideLayout) {
             XSLFSlideLayout slideLayout = (XSLFSlideLayout)sm;
@@ -309,7 +314,7 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
             }
             sm = slideLayout.getMasterSheet();
         }
-        
+
         // try slide master
         if (sm instanceof XSLFSlideMaster) {
             XSLFSlideMaster master = (XSLFSlideMaster)sm;
@@ -317,15 +322,15 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
             XSLFSimpleShape masterShape = master.getPlaceholderByType(textType);
             return masterShape != null && visitor.fetch(masterShape);
         }
-        
+
         return false;
     }
-    
+
     private static int getPlaceholderType(CTPlaceholder ph) {
         if ( !ph.isSetType()) {
             return STPlaceholderType.INT_BODY;
         }
-        
+
         switch (ph.getType().intValue()) {
             case STPlaceholderType.INT_TITLE:
             case STPlaceholderType.INT_CTR_TITLE:
@@ -397,7 +402,8 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
                     throw new RuntimeException(e);
                 }
             }
-            
+
+            @Override
             public InputStream getImageData() {
                 try {
                     return getPart().getInputStream();
@@ -406,17 +412,19 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
                 }
             }
 
+            @Override
             public String getContentType() {
                 /* TOOD: map content-type */
                 return getPart().getContentType();
             }
 
+            @Override
             public int getAlpha() {
                 return (blip.sizeOfAlphaModFixArray() > 0)
                     ? blip.getAlphaModFixArray(0).getAmt()
                     : 100000;
             }
-        };        
+        };
     }
 
     @SuppressWarnings("WeakerAccess")
@@ -426,14 +434,14 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
         final CTGradientStop[] gs = gradFill.getGsLst().getGsArray();
 
         Arrays.sort(gs, (o1, o2) -> {
-            Integer pos1 = o1.getPos();
-            Integer pos2 = o2.getPos();
-            return pos1.compareTo(pos2);
+            int pos1 = o1.getPos();
+            int pos2 = o2.getPos();
+            return Integer.compare(pos1, pos2);
         });
 
         final ColorStyle cs[] = new ColorStyle[gs.length];
         final float fractions[] = new float[gs.length];
-        
+
         int i=0;
         for (CTGradientStop cgs : gs) {
             CTSchemeColor phClrCgs = phClr;
@@ -444,32 +452,37 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
             fractions[i] = cgs.getPos() / 100000.f;
             i++;
         }
-        
+
         return new GradientPaint() {
 
+            @Override
             public double getGradientAngle() {
                 return (gradFill.isSetLin())
                     ? gradFill.getLin().getAng() / 60000.d
                     : 0;
             }
 
+            @Override
             public ColorStyle[] getGradientColors() {
                 return cs;
             }
 
+            @Override
             public float[] getGradientFractions() {
                 return fractions;
             }
 
+            @Override
             public boolean isRotatedWithShape() {
                 return gradFill.getRotWithShape();
             }
 
+            @Override
             public GradientType getGradientType() {
                 if (gradFill.isSetLin()) {
                     return GradientType.linear;
                 }
-                
+
                 if (gradFill.isSetPath()) {
                     /* TODO: handle rect path */
                     STPathShadeType.Enum ps = gradFill.getPath().getPath();
@@ -479,16 +492,18 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
                         return GradientType.shape;
                     }
                 }
-                
+
                 return GradientType.linear;
             }
-        };        
+        };
     }
-    
+
     @SuppressWarnings("WeakerAccess")
     protected static PaintStyle selectPaint(CTStyleMatrixReference fillRef, final XSLFTheme theme, boolean isLineStyle, boolean hasPlaceholder) {
-        if (fillRef == null) return null;
-        
+        if (fillRef == null) {
+            return null;
+        }
+
         // The idx attribute refers to the index of a fill style or
         // background fill style within the presentation's style matrix, defined by the fmtScheme element.
         // value of 0 or 1000 indicates no background,
@@ -513,7 +528,7 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
             fp = XSLFPropertiesDelegate.getFillDelegate(cur.getObject());
         }
         cur.dispose();
-            
+
         CTSchemeColor phClr = fillRef.getSchemeClr();
         PaintStyle res =  selectPaint(fp, phClr, theme.getPackagePart(), theme, hasPlaceholder);
         // check for empty placeholder value
@@ -524,12 +539,12 @@ public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
         XSLFColor col = new XSLFColor(fillRef, theme, phClr);
         return DrawPaint.createSolidPaint(col.getColorStyle());
     }
-    
+
     @Override
     public void draw(Graphics2D graphics, Rectangle2D bounds) {
         DrawFactory.getInstance(graphics).drawShape(graphics, this, bounds);
     }
-    
+
     /**
      * Return the shape specific (visual) properties
      *

src/ooxml/java/org/apache/poi/xslf/util/PPTX2PNG.java

@@ -74,13 +74,13 @@ public class PPTX2PNG {
         for (int i = 0; i < args.length; i++) {
             if (args[i].startsWith("-")) {
                 if ("-scale".equals(args[i])) {
-                    scale = Float.parseFloat(args[++i]);
+                    scale = Float.parseFloat(args[++i]); // lgtm[java/index-out-of-bounds]
                 } else if ("-slide".equals(args[i])) {
-                    slidenumStr = args[++i];
+                    slidenumStr = args[++i]; // lgtm[java/index-out-of-bounds]
                 } else if ("-format".equals(args[i])) {
-                    format = args[++i];
+                    format = args[++i]; // lgtm[java/index-out-of-bounds]
                 } else if ("-outdir".equals(args[i])) {
-                    outdir = new File(args[++i]);
+                    outdir = new File(args[++i]); // lgtm[java/index-out-of-bounds]
                 } else if ("-quiet".equals(args[i])) {
                     quiet = true;
                 }
@@ -98,11 +98,11 @@ public class PPTX2PNG {
             usage("Invalid format given");
             return;
         }
-    
+
         if (outdir == null) {
             outdir = file.getParentFile();
         }
-        
+
         if (!"null".equals(format) && (outdir == null || !outdir.exists() || !outdir.isDirectory())) {
             usage("Output directory doesn't exist");
             return;
@@ -112,7 +112,7 @@ public class PPTX2PNG {
             usage("Invalid scale given");
             return;
         }
-        
+
         if (!quiet) {
             System.out.println("Processing " + file);
         }
@@ -169,7 +169,7 @@ public class PPTX2PNG {
             System.out.println("Done");
         }
     }
-    
+
     private static Set<Integer> slideIndexes(final int slideCount, String range) {
         Set<Integer> slideIdx = new TreeSet<>();
         if ("-1".equals(range)) {

src/ooxml/java/org/apache/poi/xssf/binary/XSSFBUtils.java

@@ -51,7 +51,7 @@ public class XSSFBUtils {
         int numBytes = 2*(int)numChars;
         offset += 4;
         if (offset+numBytes > data.length) {
-            throw new XSSFBParseException("trying to read beyond data length:" +
+            throw new XSSFBParseException("trying to read beyond data length: " +
              "offset="+offset+", numBytes="+numBytes+", data.length="+data.length);
         }
         sb.append(new String(data, offset, numBytes, StandardCharsets.UTF_16LE));

src/ooxml/java/org/apache/poi/xssf/streaming/SXSSFRow.java

@@ -39,22 +39,22 @@ import org.apache.poi.util.NotImplemented;
 public class SXSSFRow implements Row, Comparable<SXSSFRow>
 {
     private static final Boolean UNDEFINED = null;
-    
+
     private final SXSSFSheet _sheet; // parent sheet
     private final SortedMap<Integer, SXSSFCell> _cells = new TreeMap<>();
     private short _style = -1; // index of cell style in style table
     private short _height = -1; // row height in twips (1/20 point)
     private boolean _zHeight; // row zero-height (this is somehow different than being hidden)
     private int _outlineLevel;   // Outlining level of the row, when outlining is on
-    // use Boolean to have a tri-state for on/off/undefined 
+    // use Boolean to have a tri-state for on/off/undefined
     private Boolean _hidden = UNDEFINED;
     private Boolean _collapsed = UNDEFINED;
-    
+
     public SXSSFRow(SXSSFSheet sheet)
     {
         _sheet=sheet;
     }
-    
+
     public Iterator<Cell> allCellsIterator()
     {
         return new CellIterator();
@@ -71,7 +71,7 @@ public class SXSSFRow implements Row, Comparable<SXSSFRow>
     void setOutlineLevel(int level){
         _outlineLevel = level;
     }
-    
+
     /**
      * get row hidden state: Hidden (true), Unhidden (false), Undefined (null)
      *
@@ -235,7 +235,7 @@ public class SXSSFRow implements Row, Comparable<SXSSFRow>
     public SXSSFCell getCell(int cellnum, MissingCellPolicy policy)
     {
         checkBounds(cellnum);
-        
+
         final SXSSFCell cell = _cells.get(cellnum);
         switch (policy) {
             case RETURN_NULL_AND_BLANK:
@@ -345,10 +345,11 @@ public class SXSSFRow implements Row, Comparable<SXSSFRow>
     @Override
     public void setHeightInPoints(float height)
     {
-        if(height==-1)
+        if(height==-1) {
             _height=-1;
-        else
+        } else {
             _height=(short)(height*20);
+        }
     }
 
     /**
@@ -375,7 +376,7 @@ public class SXSSFRow implements Row, Comparable<SXSSFRow>
     {
         return (float)(_height==-1?getSheet().getDefaultRowHeightInPoints():_height/20.0);
     }
-    
+
     /**
      * Is this row formatted? Most aren't, but some rows
      *  do have whole-row styles. For those that do, you
@@ -392,16 +393,18 @@ public class SXSSFRow implements Row, Comparable<SXSSFRow>
      */
     @Override
     public CellStyle getRowStyle() {
-       if(!isFormatted()) return null;
-       
+       if(!isFormatted()) {
+        return null;
+    }
+
        return getSheet().getWorkbook().getCellStyleAt(_style);
     }
-    
+
     @Internal
     /*package*/ int getRowStyleIndex() {
         return _style;
     }
-    
+
     /**
      * Applies a whole-row cell styling to the row.
      * The row style can be cleared by passing in <code>null</code>.
@@ -440,7 +443,7 @@ public class SXSSFRow implements Row, Comparable<SXSSFRow>
     /**
      * Create an iterator over the cells from [0, getLastCellNum()).
      * Includes blank cells, excludes empty cells
-     * 
+     *
      * Returns an iterator over all filled cells (created via Row.createCell())
      * Throws ConcurrentModificationException if cells are added, moved, or
      * removed after the iterator is created.
@@ -485,10 +488,11 @@ public class SXSSFRow implements Row, Comparable<SXSSFRow>
         @Override
         public Cell next() throws NoSuchElementException
         {
-            if (hasNext())
+            if (hasNext()) {
                 return _cells.get(pos++);
-            else
+            } else {
                 throw new NoSuchElementException();
+            }
         }
         @Override
         public void remove()
@@ -496,7 +500,7 @@ public class SXSSFRow implements Row, Comparable<SXSSFRow>
             throw new UnsupportedOperationException();
         }
     }
-    
+
     /**
      * Compares two <code>SXSSFRow</code> objects.  Two rows are equal if they belong to the same worksheet and
      * their row indexes are equal.
@@ -524,9 +528,9 @@ public class SXSSFRow implements Row, Comparable<SXSSFRow>
             throw new IllegalArgumentException("The compared rows must belong to the same sheet");
         }
 
-        Integer thisRow = this.getRowNum();
-        Integer otherRow = other.getRowNum();
-        return thisRow.compareTo(otherRow);
+        int thisRow = this.getRowNum();
+        int otherRow = other.getRowNum();
+        return Integer.compare(thisRow, otherRow);
     }
 
     @Override

src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFDrawing.java

@@ -446,7 +446,7 @@ public final class XSSFDrawing extends POIXMLDocumentPart implements Drawing<XSS
         XSSFSheet sheet = getSheet();
         XSSFWorkbook wb = sheet.getWorkbook();
         int sheetIndex = wb.getSheetIndex(sheet);
-        long shapeId = (sheetIndex + 1) * 1024 + newShapeId();
+        long shapeId = (sheetIndex + 1L) * 1024 + newShapeId();
 
         // add reference to OLE part
         PackagePartName olePN;

src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFRow.java

@@ -22,8 +22,8 @@ import java.util.Iterator;
 import java.util.Set;
 import java.util.TreeMap;
 
-import org.apache.poi.ss.formula.FormulaShifter;
 import org.apache.poi.ss.SpreadsheetVersion;
+import org.apache.poi.ss.formula.FormulaShifter;
 import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.CellCopyPolicy;
 import org.apache.poi.ss.usermodel.CellStyle;
@@ -77,7 +77,7 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
             _cells.put(colI, cell);
             sheet.onReadCell(cell);
         }
-        
+
         if (! row.isSetR()) {
             // Certain file format writers skip the row number
             // Assume no gaps, and give this the next row number
@@ -158,9 +158,9 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
             throw new IllegalArgumentException("The compared rows must belong to the same sheet");
         }
 
-        Integer thisRow = this.getRowNum();
-        Integer otherRow = other.getRowNum();
-        return thisRow.compareTo(otherRow);
+        int thisRow = this.getRowNum();
+        int otherRow = other.getRowNum();
+        return Integer.compare(thisRow, otherRow);
     }
 
     @Override
@@ -245,7 +245,9 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
      */
     @Override
     public XSSFCell getCell(int cellnum, MissingCellPolicy policy) {
-        if(cellnum < 0) throw new IllegalArgumentException("Cell index must be >= 0");
+        if(cellnum < 0) {
+            throw new IllegalArgumentException("Cell index must be >= 0");
+        }
 
         // Performance optimization for bug 57840: explicit boxing is slightly faster than auto-unboxing, though may use more memory
         final Integer colI = Integer.valueOf(cellnum); // NOSONAR
@@ -332,8 +334,12 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
     @Override
     public void setHeight(short height) {
         if (height == -1) {
-            if (_row.isSetHt()) _row.unsetHt();
-            if (_row.isSetCustomHeight()) _row.unsetCustomHeight();
+            if (_row.isSetHt()) {
+                _row.unsetHt();
+            }
+            if (_row.isSetCustomHeight()) {
+                _row.unsetCustomHeight();
+            }
         } else {
             _row.setHt((double) height / 20);
             _row.setCustomHeight(true);
@@ -425,8 +431,10 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
      */
     @Override
     public XSSFCellStyle getRowStyle() {
-       if(!isFormatted()) return null;
-       
+       if(!isFormatted()) {
+        return null;
+    }
+
        StylesTable stylesSource = getSheet().getWorkbook().getStylesSource();
        if(stylesSource.getNumCellStyles() > 0) {
            return stylesSource.getStyleAt((int)_row.getS());
@@ -434,7 +442,7 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
           return null;
        }
     }
-    
+
     /**
      * Applies a whole-row cell styling to the row.
      * If the value is null then the style information is removed,
@@ -449,7 +457,7 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
            }
         } else {
             StylesTable styleSource = getSheet().getWorkbook().getStylesSource();
-            
+
             XSSFCellStyle xStyle = (XSSFCellStyle)style;
             xStyle.verifyBelongsToStylesSource(styleSource);
 
@@ -458,7 +466,7 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
             _row.setCustomFormat(true);
         }
     }
-    
+
     /**
      * Remove the Cell from this row.
      *
@@ -502,8 +510,8 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
         int i = 0;
         for (XSSFCell xssfCell : _cells.values()) {
             cArray[i] = (CTCell) xssfCell.getCTCell().copy();
-            
-            // we have to copy and re-create the XSSFCell here because the 
+
+            // we have to copy and re-create the XSSFCell here because the
             // elements as otherwise setCArray below invalidates all the columns!
             // see Bug 56170, XMLBeans seems to always release previous objects
             // in the CArray, so we need to provide completely new ones here!
@@ -537,7 +545,7 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
           }
         setRowNum(rownum);
     }
-    
+
     /**
      * Copy the cells from srcRow to this row
      * If this row is not a blank row, this will merge the two rows, overwriting
@@ -589,7 +597,7 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
             final int srcRowNum = srcRow.getRowNum();
             final int destRowNum = getRowNum();
             final int rowDifference = destRowNum - srcRowNum;
-            
+
             final FormulaShifter formulaShifter = FormulaShifter.createForRowCopy(sheetIndex, sheetName, srcRowNum, srcRowNum, rowDifference, SpreadsheetVersion.EXCEL2007);
             final XSSFRowShifter rowShifter = new XSSFRowShifter(_sheet);
             rowShifter.updateRowFormulas(this, formulaShifter);
@@ -617,7 +625,7 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
     public int getOutlineLevel() {
         return _row.getOutlineLevel();
     }
-    
+
     /**
      * Shifts column range [firstShiftColumnIndex-lastShiftColumnIndex] step places to the right.
      * @param firstShiftColumnIndex the column to start shifting
@@ -626,20 +634,23 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
      */
     @Override
     public void shiftCellsRight(int firstShiftColumnIndex, int lastShiftColumnIndex, int step) {
-        if(step < 0)
+        if(step < 0) {
             throw new IllegalArgumentException("Shifting step may not be negative ");
-        if(firstShiftColumnIndex > lastShiftColumnIndex)
+        }
+        if(firstShiftColumnIndex > lastShiftColumnIndex) {
             throw new IllegalArgumentException(String.format(LocaleUtil.getUserLocale(),
                     "Incorrect shifting range : %d-%d", firstShiftColumnIndex, lastShiftColumnIndex));
-        for (int columnIndex = lastShiftColumnIndex; columnIndex >= firstShiftColumnIndex; columnIndex--){ // process cells backwards, because of shifting 
+        }
+        for (int columnIndex = lastShiftColumnIndex; columnIndex >= firstShiftColumnIndex; columnIndex--){ // process cells backwards, because of shifting
             shiftCell(columnIndex, step);
         }
         for (int columnIndex = firstShiftColumnIndex; columnIndex <= firstShiftColumnIndex+step-1; columnIndex++)
         {
             _cells.remove(columnIndex);
             XSSFCell targetCell = getCell(columnIndex);
-            if(targetCell != null)
+            if(targetCell != null) {
                 targetCell.getCTCell().set(CTCell.Factory.newInstance());
+            }
         }
     }
     /**
@@ -650,27 +661,32 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
      */
     @Override
     public void shiftCellsLeft(int firstShiftColumnIndex, int lastShiftColumnIndex, int step) {
-        if(step < 0)
+        if(step < 0) {
             throw new IllegalArgumentException("Shifting step may not be negative ");
-        if(firstShiftColumnIndex > lastShiftColumnIndex)
+        }
+        if(firstShiftColumnIndex > lastShiftColumnIndex) {
             throw new IllegalArgumentException(String.format(LocaleUtil.getUserLocale(),
                     "Incorrect shifting range : %d-%d", firstShiftColumnIndex, lastShiftColumnIndex));
-        if(firstShiftColumnIndex - step < 0) 
+        }
+        if(firstShiftColumnIndex - step < 0) {
             throw new IllegalStateException("Column index less than zero : " + (Integer.valueOf(firstShiftColumnIndex + step)).toString());
-        for (int columnIndex = firstShiftColumnIndex; columnIndex <= lastShiftColumnIndex; columnIndex++){ 
+        }
+        for (int columnIndex = firstShiftColumnIndex; columnIndex <= lastShiftColumnIndex; columnIndex++){
             shiftCell(columnIndex, -step);
         }
         for (int columnIndex = lastShiftColumnIndex-step+1; columnIndex <= lastShiftColumnIndex; columnIndex++){
             _cells.remove(columnIndex);
             XSSFCell targetCell = getCell(columnIndex);
-            if(targetCell != null)
+            if(targetCell != null) {
                 targetCell.getCTCell().set(CTCell.Factory.newInstance());
+            }
         }
     }
     private void shiftCell(int columnIndex, int step/*pass negative value for left shift*/){
-        if(columnIndex + step < 0) // only for shifting left
+        if(columnIndex + step < 0) {
             throw new IllegalStateException("Column index less than zero : " + (Integer.valueOf(columnIndex + step)).toString());
-        
+        }
+
         XSSFCell currentCell = getCell(columnIndex);
         if(currentCell != null){
             currentCell.setCellNum(columnIndex+step);
@@ -679,8 +695,9 @@ public class XSSFRow implements Row, Comparable<XSSFRow> {
         else {
             _cells.remove(columnIndex+step);
             XSSFCell targetCell = getCell(columnIndex+step);
-            if(targetCell != null)
+            if(targetCell != null) {
                 targetCell.getCTCell().set(CTCell.Factory.newInstance());
+            }
         }
     }
 }

src/ooxml/java/org/apache/poi/xwpf/usermodel/XWPFSDTContent.java

@@ -40,16 +40,16 @@ public class XWPFSDTContent implements ISDTContent {
 
     // private final IBody part;
     // private final XWPFDocument document;
-    private List<XWPFParagraph> paragraphs = new ArrayList<>();
-    private List<XWPFTable> tables = new ArrayList<>();
-    private List<XWPFRun> runs = new ArrayList<>();
-    private List<XWPFSDT> contentControls = new ArrayList<>();
+    // private List<XWPFParagraph> paragraphs = new ArrayList<>();
+    // private List<XWPFTable> tables = new ArrayList<>();
+    // private List<XWPFRun> runs = new ArrayList<>();
+    // private List<XWPFSDT> contentControls = new ArrayList<>();
     private List<ISDTContents> bodyElements = new ArrayList<>();
 
     public XWPFSDTContent(CTSdtContentRun sdtRun, IBody part, IRunBody parent) {
         for (CTR ctr : sdtRun.getRArray()) {
             XWPFRun run = new XWPFRun(ctr, parent);
-            runs.add(run);
+            // runs.add(run);
             bodyElements.add(run);
         }
     }
@@ -62,24 +62,25 @@ public class XWPFSDTContent implements ISDTContent {
             if (o instanceof CTP) {
                 XWPFParagraph p = new XWPFParagraph((CTP) o, part);
                 bodyElements.add(p);
-                paragraphs.add(p);
+                // paragraphs.add(p);
             } else if (o instanceof CTTbl) {
                 XWPFTable t = new XWPFTable((CTTbl) o, part);
                 bodyElements.add(t);
-                tables.add(t);
+                // tables.add(t);
             } else if (o instanceof CTSdtBlock) {
                 XWPFSDT c = new XWPFSDT(((CTSdtBlock) o), part);
                 bodyElements.add(c);
-                contentControls.add(c);
+                // contentControls.add(c);
             } else if (o instanceof CTR) {
                 XWPFRun run = new XWPFRun((CTR) o, parent);
-                runs.add(run);
+                // runs.add(run);
                 bodyElements.add(run);
             }
         }
         cursor.dispose();
     }
 
+    @Override
     public String getText() {
         StringBuilder text = new StringBuilder();
         boolean addNewLine = false;
@@ -130,6 +131,7 @@ public class XWPFSDTContent implements ISDTContent {
         }
     }
 
+    @Override
     public String toString() {
         return getText();
     }

src/ooxml/java/org/apache/poi/xwpf/usermodel/XWPFTable.java

@@ -161,8 +161,9 @@ public class XWPFTable implements IBodyElement, ISDTContents {
         this.ctTbl = table;
 
         // is an empty table: I add one row and one column as default
-        if (table.sizeOfTrArray() == 0)
+        if (table.sizeOfTrArray() == 0) {
             createEmptyTable(table);
+        }
 
         for (CTRow row : table.getTrList()) {
             StringBuilder rowText = new StringBuilder();
@@ -233,7 +234,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
         return text.toString();
     }
 
-    
+
     /**
      * This method has existed since 2008 without an implementation.
      * It will be removed unless an implementation is provided.
@@ -288,7 +289,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
     /**
      * Get the width value as an integer.
      * <p>If the width type is AUTO, DXA, or NIL, the value is 20ths of a point. If
-     * the width type is PCT, the value is the percentage times 50 (e.g., 2500 for 50%).</p> 
+     * the width type is PCT, the value is the percentage times 50 (e.g., 2500 for 50%).</p>
      * @return width value as an integer
      */
     public int getWidth() {
@@ -322,7 +323,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
     }
 
     /**
-     * Returns CTTblPr object for table. If force parameter is true, will 
+     * Returns CTTblPr object for table. If force parameter is true, will
      * create the element if necessary. If force parameter is false, returns
      * null when CTTblPr element is missing.
      *
@@ -343,7 +344,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
     private CTTblBorders getTblBorders(boolean force) {
         CTTblPr tblPr = getTblPr(force);
         return tblPr == null ? null
-               : tblPr.isSetTblBorders() ? tblPr.getTblBorders() 
+               : tblPr.isSetTblBorders() ? tblPr.getTblBorders()
                : force ? tblPr.addNewTblBorders()
                : null;
     }
@@ -413,18 +414,18 @@ public class XWPFTable implements IBodyElement, ISDTContents {
                 : tPr.isSetJc() ? TableRowAlign.valueOf(tPr.getJc().getVal().intValue())
                 : null;
     }
-    
+
     /**
      * Set table alignment to specified {@link TableRowAlign}
      *
-     * @param ha {@link TableRowAlign} to set
+     * @param tra {@link TableRowAlign} to set
      */
     public void setTableAlignment(TableRowAlign tra) {
         CTTblPr tPr = getTblPr(true);
         CTJc jc = tPr.isSetJc() ? tPr.getJc() : tPr.addNewJc();
         jc.setVal(STJc.Enum.forInt(tra.getValue()));
     }
-    
+
     /**
      * Removes the table alignment attribute from a table
      */
@@ -434,7 +435,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
             tPr.unsetJc();
         }
     }
-    
+
     private void addColumn(XWPFTableRow tabRow, int sizeCol) {
         if (sizeCol > 0) {
             for (int i = 0; i < sizeCol; i++) {
@@ -486,7 +487,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get inside horizontal border size
-     * 
+     *
      * @return The width of the Inside Horizontal borders in 1/8th points,
      * -1 if missing.
      */
@@ -496,7 +497,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get inside horizontal border spacing
-     * 
+     *
      * @return The offset to the Inside Horizontal borders in points,
      * -1 if missing.
      */
@@ -506,7 +507,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get inside horizontal border color
-     * 
+     *
      * @return The color of the Inside Horizontal borders, null if missing.
      */
     public String getInsideHBorderColor() {
@@ -524,7 +525,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get inside vertical border size
-     * 
+     *
      * @return The width of the Inside vertical borders in 1/8th points,
      * -1 if missing.
      */
@@ -534,7 +535,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get inside vertical border spacing
-     * 
+     *
      * @return The offset to the Inside vertical borders in points,
      * -1 if missing.
      */
@@ -544,7 +545,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get inside vertical border color
-     * 
+     *
      * @return The color of the Inside vertical borders, null if missing.
      */
     public String getInsideVBorderColor() {
@@ -562,7 +563,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get top border size
-     * 
+     *
      * @return The width of the top borders in 1/8th points,
      * -1 if missing.
      */
@@ -572,7 +573,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get top border spacing
-     * 
+     *
      * @return The offset to the top borders in points,
      * -1 if missing.
      */
@@ -582,7 +583,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get top border color
-     * 
+     *
      * @return The color of the top borders, null if missing.
      */
     public String getTopBorderColor() {
@@ -600,7 +601,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get bottom border size
-     * 
+     *
      * @return The width of the bottom borders in 1/8th points,
      * -1 if missing.
      */
@@ -610,7 +611,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get bottom border spacing
-     * 
+     *
      * @return The offset to the bottom borders in points,
      * -1 if missing.
      */
@@ -620,7 +621,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get bottom border color
-     * 
+     *
      * @return The color of the bottom borders, null if missing.
      */
     public String getBottomBorderColor() {
@@ -638,7 +639,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get Left border size
-     * 
+     *
      * @return The width of the Left borders in 1/8th points,
      * -1 if missing.
      */
@@ -648,7 +649,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get Left border spacing
-     * 
+     *
      * @return The offset to the Left borders in points,
      * -1 if missing.
      */
@@ -658,7 +659,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get Left border color
-     * 
+     *
      * @return The color of the Left borders, null if missing.
      */
     public String getLeftBorderColor() {
@@ -676,7 +677,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get Right border size
-     * 
+     *
      * @return The width of the Right borders in 1/8th points,
      * -1 if missing.
      */
@@ -686,7 +687,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get Right border spacing
-     * 
+     *
      * @return The offset to the Right borders in points,
      * -1 if missing.
      */
@@ -696,7 +697,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
 
     /**
      * Get Right border color
-     * 
+     *
      * @return The color of the Right borders, null if missing.
      */
     public String getRightBorderColor() {
@@ -770,7 +771,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
      *      of a point) and a maximum value of 96 (twelve points). Any values outside this
      *      range may be reassigned to a more appropriate value.
      * @param space - Specifies the spacing offset that shall be used to place this border on the table
-     * @param rgbColor - This color may either be presented as a hex value (in RRGGBB format), 
+     * @param rgbColor - This color may either be presented as a hex value (in RRGGBB format),
      *      or auto to allow a consumer to automatically determine the border color as appropriate.
      */
     public void setInsideHBorder(XWPFBorderType type, int size, int space, String rgbColor) {
@@ -786,7 +787,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
      *      of a point) and a maximum value of 96 (twelve points). Any values outside this
      *      range may be reassigned to a more appropriate value.
      * @param space - Specifies the spacing offset that shall be used to place this border on the table
-     * @param rgbColor - This color may either be presented as a hex value (in RRGGBB format), 
+     * @param rgbColor - This color may either be presented as a hex value (in RRGGBB format),
      *      or auto to allow a consumer to automatically determine the border color as appropriate.
      */
     public void setInsideVBorder(XWPFBorderType type, int size, int space, String rgbColor) {
@@ -802,7 +803,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
      *      of a point) and a maximum value of 96 (twelve points). Any values outside this
      *      range may be reassigned to a more appropriate value.
      * @param space - Specifies the spacing offset that shall be used to place this border on the table
-     * @param rgbColor - This color may either be presented as a hex value (in RRGGBB format), 
+     * @param rgbColor - This color may either be presented as a hex value (in RRGGBB format),
      *      or auto to allow a consumer to automatically determine the border color as appropriate.
      */
     public void setTopBorder(XWPFBorderType type, int size, int space, String rgbColor) {
@@ -818,7 +819,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
      *      of a point) and a maximum value of 96 (twelve points). Any values outside this
      *      range may be reassigned to a more appropriate value.
      * @param space - Specifies the spacing offset that shall be used to place this border on the table
-     * @param rgbColor - This color may either be presented as a hex value (in RRGGBB format), 
+     * @param rgbColor - This color may either be presented as a hex value (in RRGGBB format),
      *      or auto to allow a consumer to automatically determine the border color as appropriate.
      */
     public void setBottomBorder(XWPFBorderType type, int size, int space, String rgbColor) {
@@ -834,7 +835,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
      *      of a point) and a maximum value of 96 (twelve points). Any values outside this
      *      range may be reassigned to a more appropriate value.
      * @param space - Specifies the spacing offset that shall be used to place this border on the table
-     * @param rgbColor - This color may either be presented as a hex value (in RRGGBB format), 
+     * @param rgbColor - This color may either be presented as a hex value (in RRGGBB format),
      *      or auto to allow a consumer to automatically determine the border color as appropriate.
      */
     public void setLeftBorder(XWPFBorderType type, int size, int space, String rgbColor) {
@@ -850,7 +851,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
      *      of a point) and a maximum value of 96 (twelve points). Any values outside this
      *      range may be reassigned to a more appropriate value.
      * @param space - Specifies the spacing offset that shall be used to place this border on the table
-     * @param rgbColor - This color may either be presented as a hex value (in RRGGBB format), 
+     * @param rgbColor - This color may either be presented as a hex value (in RRGGBB format),
      *      or auto to allow a consumer to automatically determine the border color as appropriate.
      */
     public void setRightBorder(XWPFBorderType type, int size, int space, String rgbColor) {
@@ -872,14 +873,14 @@ public class XWPFTable implements IBodyElement, ISDTContents {
     public void removeInsideHBorder() {
         removeBorder(Border.INSIDE_H);
     }
-    
+
     /**
      * Remove inside vertical borders for table
      */
     public void removeInsideVBorder() {
         removeBorder(Border.INSIDE_V);
     }
-    
+
     /**
      * Remove top borders for table
      */
@@ -893,21 +894,21 @@ public class XWPFTable implements IBodyElement, ISDTContents {
     public void removeBottomBorder() {
         removeBorder(Border.BOTTOM);
     }
-    
+
     /**
      * Remove left borders for table
      */
     public void removeLeftBorder() {
         removeBorder(Border.LEFT);
     }
-    
+
     /**
      * Remove right borders for table
      */
     public void removeRightBorder() {
         removeBorder(Border.RIGHT);
     }
-    
+
     /**
      * Remove all borders from table
      */
@@ -959,7 +960,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
     }
 
     /**
-     * removes the Borders node from Table properties if there are 
+     * removes the Borders node from Table properties if there are
      * no border elements
      */
     private void cleanupTblBorders() {
@@ -976,7 +977,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
             }
         }
     }
-    
+
     public int getCellMarginTop() {
         return getCellMargin(CTTblCellMar::getTop);
     }
@@ -1095,10 +1096,12 @@ public class XWPFTable implements IBodyElement, ISDTContents {
      *
      * @see org.apache.poi.xwpf.usermodel.IBodyElement#getElementType()
      */
+    @Override
     public BodyElementType getElementType() {
         return BodyElementType.TABLE;
     }
 
+    @Override
     public IBody getBody() {
         return part;
     }
@@ -1108,6 +1111,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
      *
      * @see org.apache.poi.xwpf.usermodel.IBody#getPart()
      */
+    @Override
     public POIXMLDocumentPart getPart() {
         if (part != null) {
             return part.getPart();
@@ -1120,6 +1124,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
      *
      * @see org.apache.poi.xwpf.usermodel.IBody#getPartType()
      */
+    @Override
     public BodyType getPartType() {
         return part.getPartType();
     }
@@ -1130,11 +1135,13 @@ public class XWPFTable implements IBodyElement, ISDTContents {
      */
     public XWPFTableRow getRow(CTRow row) {
         for (int i = 0; i < getRows().size(); i++) {
-            if (getRows().get(i).getCtRow() == row) return getRow(i);
+            if (getRows().get(i).getCtRow() == row) {
+                return getRow(i);
+            }
         }
         return null;
     }
-    
+
     /**
      * Get the table width as a decimal value.
      * <p>If the width type is DXA or AUTO, then the value will always have
@@ -1159,14 +1166,14 @@ public class XWPFTable implements IBodyElement, ISDTContents {
     protected static double getWidthDecimal(CTTblWidth ctWidth) {
         double result = 0.0;
         STTblWidth.Enum typeValue = ctWidth.getType();
-        if (typeValue == STTblWidth.DXA 
-                || typeValue == STTblWidth.AUTO 
+        if (typeValue == STTblWidth.DXA
+                || typeValue == STTblWidth.AUTO
                 || typeValue == STTblWidth.NIL) {
             result = 0.0 + ctWidth.getW().intValue();
         } else if (typeValue == STTblWidth.PCT) {
             // Percentage values are stored as integers that are 50 times
             // percentage.
-            result = ctWidth.getW().intValue() / 50.0;                    
+            result = ctWidth.getW().intValue() / 50.0;
         } else {
             // Should never get here
         }
@@ -1230,7 +1237,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
     protected static void setWidthValue(String widthValue, CTTblWidth ctWidth) {
         if (!widthValue.matches(REGEX_WIDTH_VALUE)) {
             throw new RuntimeException("Table width value \"" + widthValue + "\" "
-                    + "must match regular expression \"" + REGEX_WIDTH_VALUE + "\"."); 
+                    + "must match regular expression \"" + REGEX_WIDTH_VALUE + "\".");
         }
         if (widthValue.matches("auto")) {
             ctWidth.setType(STTblWidth.AUTO);
@@ -1240,13 +1247,13 @@ public class XWPFTable implements IBodyElement, ISDTContents {
         } else {
             // Must be an integer
             ctWidth.setW(new BigInteger(widthValue));
-            ctWidth.setType(STTblWidth.DXA);            
+            ctWidth.setType(STTblWidth.DXA);
         }
     }
 
     /**
      * Set the underlying table width value to a percentage value.
-     * @param ctWidth The CTTblWidth to set the value on 
+     * @param ctWidth The CTTblWidth to set the value on
      * @param widthValue String width value in form "33.3%" or an integer that is 50 times desired percentage value (e.g,
      * 2500 for 50%)
      * @since 4.0.0
@@ -1257,7 +1264,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
             String numberPart = widthValue.substring(0,  widthValue.length() - 1);
             double percentage = Double.parseDouble(numberPart) * 50;
             long intValue = Math.round(percentage);
-            ctWidth.setW(BigInteger.valueOf(intValue));            
+            ctWidth.setW(BigInteger.valueOf(intValue));
         } else if (widthValue.matches("[0-9]+")) {
             ctWidth.setW(new BigInteger(widthValue));
         } else {
@@ -1275,7 +1282,7 @@ public class XWPFTable implements IBodyElement, ISDTContents {
      * @since 4.0.0
      */
     public void setWidthType(TableWidthType widthType) {
-        setWidthType(widthType, getTblPr().getTblW());        
+        setWidthType(widthType, getTblPr().getTblW());
     }
 
     /**