Replace uses of StringBuffer with StringBuilder.

StringBuffer is a legacy synchronized class. StringBuilder is a direct replacement to StringBuffer which generally have better performance.

15 files changed, 26 insertions, 26 deletions

diff --git a/weaver/src/main/java/org/aspectj/weaver/bcel/AtAjAttributes.java b/weaver/src/main/java/org/aspectj/weaver/bcel/AtAjAttributes.java
index 7fb18abcd..58af6d64f 100644
--- a/weaver/src/main/java/org/aspectj/weaver/bcel/AtAjAttributes.java
+++ b/weaver/src/main/java/org/aspectj/weaver/bcel/AtAjAttributes.java
@@ -856,7 +856,7 @@ public class AtAjAttributes {
 	 * @return a nicely formatted method string, for example: int X.foo(java.lang.String)
 	 */
 	public static String getMethodForMessage(AjAttributeMethodStruct methodstructure) {
-		StringBuffer sb = new StringBuffer();
+		StringBuilder sb = new StringBuilder();
 		sb.append("Method '");
 		sb.append(methodstructure.method.getReturnType().toString());
 		sb.append(" ").append(methodstructure.enclosingType).append(".").append(methodstructure.method.getName());
@@ -1533,7 +1533,7 @@ public class AtAjAttributes {
 	 * @return a readable representation of a method
 	 */
 	private static String methodToString(Method method) {
-		StringBuffer sb = new StringBuffer();
+		StringBuilder sb = new StringBuilder();
 		sb.append(method.getName());
 		sb.append(method.getSignature());
 		return sb.toString();
@@ -1811,7 +1811,7 @@ public class AtAjAttributes {
 			args.add(st.nextToken());
 		}
 		if (args.size() != method.getArgumentTypes().length) {
-			StringBuffer shortString = new StringBuffer().append(lastbit(method.getReturnType().toString())).append(" ")
+			StringBuilder shortString = new StringBuilder().append(lastbit(method.getReturnType().toString())).append(" ")
 					.append(method.getName());
 			if (method.getArgumentTypes().length > 0) {
 				shortString.append("(");
diff --git a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelAnnotation.java b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelAnnotation.java
index 0db2ba905..3cce9afb5 100644
--- a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelAnnotation.java
+++ b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelAnnotation.java
@@ -45,7 +45,7 @@ public class BcelAnnotation extends AbstractAnnotationAJ {
 	}
 
 	public String toString() {
-		StringBuffer sb = new StringBuffer();
+		StringBuilder sb = new StringBuilder();
 		List<NameValuePair> nvPairs = bcelAnnotation.getValues();
 		sb.append("Anno[" + getTypeSignature() + " " + (isRuntimeVisible() ? "rVis" : "rInvis"));
 		if (nvPairs.size() > 0) {
@@ -104,7 +104,7 @@ public class BcelAnnotation extends AbstractAnnotationAJ {
 	 */
 	@Override
 	public String stringify() {
-		StringBuffer sb = new StringBuffer();
+		StringBuilder sb = new StringBuilder();
 		sb.append("@").append(type.getClassName());
 		List<NameValuePair> values = bcelAnnotation.getValues();
 		if (values != null && values.size() != 0) {
diff --git a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelClassWeaver.java b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelClassWeaver.java
index 4aa8d2485..3ffe74773 100644
--- a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelClassWeaver.java
+++ b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelClassWeaver.java
@@ -856,7 +856,7 @@ class BcelClassWeaver implements IClassWeaver {
 				checkForOverride(interfaceType, name, psig, rsig, bridgeToCandidate.getAccessFlags(),
 						clazz.getPackageName(), bm, overriddenMethodsCollector);
 				for (ResolvedMember overriddenMethod : overriddenMethodsCollector) {
-					String key = new StringBuffer().append(overriddenMethod.getName()).append(overriddenMethod.getSignatureErased()).toString(); // pr237419
+					String key = new StringBuilder().append(overriddenMethod.getName()).append(overriddenMethod.getSignatureErased()).toString(); // pr237419
 					boolean alreadyHaveABridgeMethod = methodsSet.contains(key);
 					if (!alreadyHaveABridgeMethod) {
 						if (bridges== null) {
@@ -1103,7 +1103,7 @@ class BcelClassWeaver implements IClassWeaver {
 	private void reportMethodCtorWeavingMessage(LazyClassGen clazz, ResolvedMember member, DeclareAnnotation decaM,
 			int memberLineNumber) {
 		if (!getWorld().getMessageHandler().isIgnoring(IMessage.WEAVEINFO)) {
-			StringBuffer parmString = new StringBuffer("(");
+			StringBuilder parmString = new StringBuilder("(");
 			UnresolvedType[] paramTypes = member.getParameterTypes();
 			for (int i = 0; i < paramTypes.length; i++) {
 				UnresolvedType type = paramTypes[i];
@@ -1118,7 +1118,7 @@ class BcelClassWeaver implements IClassWeaver {
 			}
 			parmString.append(")");
 			String methodName = member.getName();
-			StringBuffer sig = new StringBuffer();
+			StringBuilder sig = new StringBuilder();
 			sig.append(org.aspectj.apache.bcel.classfile.Utility.accessToString(member.getModifiers()));
 			sig.append(" ");
 			sig.append(member.getReturnType().toString());
@@ -1128,7 +1128,7 @@ class BcelClassWeaver implements IClassWeaver {
 			sig.append(methodName.equals("<init>") ? "new" : methodName);
 			sig.append(parmString);
 
-			StringBuffer loc = new StringBuffer();
+			StringBuilder loc = new StringBuilder();
 			if (clazz.getFileName() == null) {
 				loc.append("no debug info available");
 			} else {
diff --git a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelGenericSignatureToTypeXConverter.java b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelGenericSignatureToTypeXConverter.java
index c5c7cfbd6..c78011405 100644
--- a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelGenericSignatureToTypeXConverter.java
+++ b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelGenericSignatureToTypeXConverter.java
@@ -52,7 +52,7 @@ public class BcelGenericSignatureToTypeXConverter {
 		// each type in the hierarchy may have type arguments
 
 		// first build the 'raw type' signature
-		StringBuffer sig = new StringBuffer();
+		StringBuilder sig = new StringBuilder();
 		sig.append(aClassTypeSignature.outerType.identifier.replace(';', ' ').trim());
 		for (int i = 0; i < aClassTypeSignature.nestedTypes.length; i++) {
 			sig.append("$");
diff --git a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelShadow.java b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelShadow.java
index c64ffde82..4d2e2bc88 100644
--- a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelShadow.java
+++ b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelShadow.java
@@ -2403,7 +2403,7 @@ public class BcelShadow extends Shadow {
 				// rather than fail. If a bug is raised reporting unknown as a local variable name
 				// then investigate the joinpoint giving rise to the ResolvedMember and why it has
 				// no parameter names specified
-				argumentName = new StringBuffer("unknown").append(argNumber).toString();
+				argumentName = new StringBuilder("unknown").append(argNumber).toString();
 			} else {
 				argumentName = parameterNames.get(argNumber);
 			}
diff --git a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelTypeMunger.java b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelTypeMunger.java
index b8552dbb2..fc2a2451a 100644
--- a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelTypeMunger.java
+++ b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelTypeMunger.java
@@ -616,7 +616,7 @@ public class BcelTypeMunger extends ConcreteTypeMunger {
 	 * Creates a nice signature for the ctor, something like "(int,Integer,String)"
 	 */
 	private String createReadableCtorSig(ResolvedType newParent, ConstantPool cpg, InvokeInstruction invokeSpecial) {
-		StringBuffer sb = new StringBuffer();
+		StringBuilder sb = new StringBuilder();
 		Type[] ctorArgs = invokeSpecial.getArgumentTypes(cpg);
 		sb.append(newParent.getClassName());
 		sb.append("(");
@@ -1338,7 +1338,7 @@ public class BcelTypeMunger extends ConcreteTypeMunger {
 
 	// Unlike toString() on a member, this does not include the declaring type
 	private String stringifyMember(ResolvedMember member) {
-		StringBuffer buf = new StringBuffer();
+		StringBuilder buf = new StringBuilder();
 		buf.append(member.getReturnType().getName());
 		buf.append(' ');
 		buf.append(member.getName());
diff --git a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelWeaver.java b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelWeaver.java
index 12b8cb2c0..51f0a8c6c 100644
--- a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelWeaver.java
+++ b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelWeaver.java
@@ -400,7 +400,7 @@ public class BcelWeaver {
 
 						if (filename.endsWith(".class")) {
 							ReferenceType type = this.addClassFile(classFile, false);
-							StringBuffer sb = new StringBuffer();
+							StringBuilder sb = new StringBuilder();
 							sb.append(inFile.getAbsolutePath());
 							sb.append("!");
 							sb.append(entry.getName());
@@ -472,7 +472,7 @@ public class BcelWeaver {
 		if (filename.endsWith(".class")) {
 			// System.err.println(
 			// "BCELWeaver: processing class from input directory "+classFile);
-			StringBuffer sb = new StringBuffer();
+			StringBuilder sb = new StringBuilder();
 			sb.append(inPathDir.getAbsolutePath());
 			sb.append("!");
 			sb.append(filename);
diff --git a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelWorld.java b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelWorld.java
index e7fdb4a10..7c4509e71 100644
--- a/weaver/src/main/java/org/aspectj/weaver/bcel/BcelWorld.java
+++ b/weaver/src/main/java/org/aspectj/weaver/bcel/BcelWorld.java
@@ -229,7 +229,7 @@ public class BcelWorld extends World implements Repository {
 	 * Ensure we report a nice source location - particular in the case where the source info is missing (binary weave).
 	 */
 	private String beautifyLocation(ISourceLocation isl) {
-		StringBuffer nice = new StringBuffer();
+		StringBuilder nice = new StringBuilder();
 		if (isl == null || isl.getSourceFile() == null || isl.getSourceFile().getName().contains("no debug info available")) {
 			nice.append("no debug info available");
 		} else {
@@ -464,7 +464,7 @@ public class BcelWorld extends World implements Repository {
 
 		if (resolvedTypeFromTypeMap != null && !(resolvedTypeFromTypeMap instanceof ReferenceType)) {
 			// what on earth is it then? See pr 112243
-			StringBuffer exceptionText = new StringBuffer();
+			StringBuilder exceptionText = new StringBuilder();
 			exceptionText.append("Found invalid (not a ReferenceType) entry in the type map. ");
 			exceptionText.append("Signature=[" + signature + "] Found=[" + resolvedTypeFromTypeMap + "] Class=[" + resolvedTypeFromTypeMap.getClass() + "]");
 			throw new BCException(exceptionText.toString());
@@ -500,7 +500,7 @@ public class BcelWorld extends World implements Repository {
 
 		if (resolvedTypeFromTypeMap != null && !(resolvedTypeFromTypeMap instanceof ReferenceType)) {
 			// what on earth is it then? See pr 112243
-			StringBuffer exceptionText = new StringBuffer();
+			StringBuilder exceptionText = new StringBuilder();
 			exceptionText.append("Found invalid (not a ReferenceType) entry in the type map. ");
 			exceptionText.append("Signature=[" + signature + "] Found=[" + resolvedTypeFromTypeMap + "] Class=[" + resolvedTypeFromTypeMap.getClass() + "]");
 			throw new BCException(exceptionText.toString());
@@ -686,7 +686,7 @@ public class BcelWorld extends World implements Repository {
 
 	@Override
 	public String toString() {
-		StringBuffer buf = new StringBuffer();
+		StringBuilder buf = new StringBuilder();
 		buf.append("BcelWorld(");
 		// buf.append(shadowMungerMap);
 		buf.append(")");
diff --git a/weaver/src/main/java/org/aspectj/weaver/bcel/ClassPathManager.java b/weaver/src/main/java/org/aspectj/weaver/bcel/ClassPathManager.java
index a090e7189..c76e91956 100644
--- a/weaver/src/main/java/org/aspectj/weaver/bcel/ClassPathManager.java
+++ b/weaver/src/main/java/org/aspectj/weaver/bcel/ClassPathManager.java
@@ -156,7 +156,7 @@ public class ClassPathManager {
 
 	@Override
 	public String toString() {
-		StringBuffer buf = new StringBuffer();
+		StringBuilder buf = new StringBuilder();
 		boolean start = true;
 		for (Entry entry : entries) {
 			if (start) {
diff --git a/weaver/src/main/java/org/aspectj/weaver/bcel/LazyClassGen.java b/weaver/src/main/java/org/aspectj/weaver/bcel/LazyClassGen.java
index 80eb20acf..4a0ed1358 100644
--- a/weaver/src/main/java/org/aspectj/weaver/bcel/LazyClassGen.java
+++ b/weaver/src/main/java/org/aspectj/weaver/bcel/LazyClassGen.java
@@ -675,7 +675,7 @@ public final class LazyClassGen {
 		}
 
 		if (needAttribute) {
-			StringBuffer signature = new StringBuffer();
+			StringBuilder signature = new StringBuilder();
 			// first, the type variables...
 			if (myType != null) {
 				TypeVariable[] tVars = myType.getTypeVariables();
diff --git a/weaver/src/main/java/org/aspectj/weaver/bcel/LazyMethodGen.java b/weaver/src/main/java/org/aspectj/weaver/bcel/LazyMethodGen.java
index a6c8dd2ea..022345d40 100644
--- a/weaver/src/main/java/org/aspectj/weaver/bcel/LazyMethodGen.java
+++ b/weaver/src/main/java/org/aspectj/weaver/bcel/LazyMethodGen.java
@@ -553,7 +553,7 @@ public final class LazyMethodGen implements Traceable {
 	public String toShortString() {
 		String access = org.aspectj.apache.bcel.classfile.Utility.accessToString(getAccessFlags());
 
-		StringBuffer buf = new StringBuffer();
+		StringBuilder buf = new StringBuilder();
 
 		if (!access.equals("")) {
 			buf.append(access);
diff --git a/weaver/src/main/java/org/aspectj/weaver/bcel/Utility.java b/weaver/src/main/java/org/aspectj/weaver/bcel/Utility.java
index d9fc3396b..eea6c3d72 100644
--- a/weaver/src/main/java/org/aspectj/weaver/bcel/Utility.java
+++ b/weaver/src/main/java/org/aspectj/weaver/bcel/Utility.java
@@ -111,7 +111,7 @@ public class Utility {
 	 * Ensure we report a nice source location - particular in the case where the source info is missing (binary weave).
 	 */
 	public static String beautifyLocation(ISourceLocation isl) {
-		StringBuffer nice = new StringBuffer();
+		StringBuilder nice = new StringBuilder();
 		if (isl == null || isl.getSourceFile() == null || isl.getSourceFile().getName().contains("no debug info available")) {
 			nice.append("no debug info available");
 		} else {
diff --git a/weaver/src/main/java/org/aspectj/weaver/loadtime/definition/LightXMLParser.java b/weaver/src/main/java/org/aspectj/weaver/loadtime/definition/LightXMLParser.java
index 119ba8a51..3d3fba430 100644
--- a/weaver/src/main/java/org/aspectj/weaver/loadtime/definition/LightXMLParser.java
+++ b/weaver/src/main/java/org/aspectj/weaver/loadtime/definition/LightXMLParser.java
@@ -411,7 +411,7 @@ public class LightXMLParser {
 
 	private void mapEntity(StringBuffer buf) throws Exception {
 		char c = this.NULL_CHAR;
-		StringBuffer keyBuf = new StringBuffer();
+		StringBuilder keyBuf = new StringBuilder();
 		while (true) {
 			c = this.getNextChar();
 			if (c == ';') {
diff --git a/weaver/src/main/java/org/aspectj/weaver/model/AsmRelationshipProvider.java b/weaver/src/main/java/org/aspectj/weaver/model/AsmRelationshipProvider.java
index 0dbae4188..387844777 100644
--- a/weaver/src/main/java/org/aspectj/weaver/model/AsmRelationshipProvider.java
+++ b/weaver/src/main/java/org/aspectj/weaver/model/AsmRelationshipProvider.java
@@ -221,7 +221,7 @@ public class AsmRelationshipProvider {
 			} else {
 				IProgramElement programElement = model.getHierarchy().getRoot();
 				// =Foo/,<g(G.class[G
-				StringBuffer phantomHandle = new StringBuffer();
+				StringBuilder phantomHandle = new StringBuilder();
 
 				// =Foo
 				phantomHandle.append(programElement.getHandleIdentifier());
diff --git a/weaver/src/main/java/org/aspectj/weaver/model/AsmRelationshipUtils.java b/weaver/src/main/java/org/aspectj/weaver/model/AsmRelationshipUtils.java
index 053a88abe..b21e7e2e0 100644
--- a/weaver/src/main/java/org/aspectj/weaver/model/AsmRelationshipUtils.java
+++ b/weaver/src/main/java/org/aspectj/weaver/model/AsmRelationshipUtils.java
@@ -52,7 +52,7 @@ public class AsmRelationshipUtils {
 	 * and a named pointcut called p() will return 'p()..'
 	 */
 	public static String genPointcutDetails(Pointcut pcd) {
-		StringBuffer details = new StringBuffer();
+		StringBuilder details = new StringBuilder();
 		if (pcd instanceof ReferencePointcut) {
 			ReferencePointcut rp = (ReferencePointcut) pcd;
 			details.append(rp.name).append(DOUBLE_DOTS);