replace more StringBuffers

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1870121 13f79535-47bb-0310-9956-ffa450edef68

2 files changed, 3 insertions, 13 deletions

diff --git a/src/testcases/org/apache/poi/hssf/usermodel/TestBugs.java b/src/testcases/org/apache/poi/hssf/usermodel/TestBugs.java
index 9d9c277def..46056ff82e 100644
--- a/src/testcases/org/apache/poi/hssf/usermodel/TestBugs.java
+++ b/src/testcases/org/apache/poi/hssf/usermodel/TestBugs.java
@@ -359,16 +359,6 @@ public final class TestBugs extends BaseTestBugzillaIssues {
         assertEquals(a.getRichStringCellValue().getString(), b.getRichStringCellValue().getString());
     }
 
-    /*private static String unicodeString(HSSFCell cell) {
-        String ss = cell.getRichStringCellValue().getString();
-        char s[] = ss.toCharArray();
-        StringBuffer sb = new StringBuffer();
-        for (int x=0;x<s.length;x++) {
-            sb.append("\\u").append(Integer.toHexString(s[x]));
-        }
-        return sb.toString();
-    }*/
-
     /**
      * Error in opening wb
      */
diff --git a/src/testcases/org/apache/poi/ss/formula/function/ExcelFileFormatDocFunctionExtractor.java b/src/testcases/org/apache/poi/ss/formula/function/ExcelFileFormatDocFunctionExtractor.java
index fe868dbdd9..ac2551665d 100644
--- a/src/testcases/org/apache/poi/ss/formula/function/ExcelFileFormatDocFunctionExtractor.java
+++ b/src/testcases/org/apache/poi/ss/formula/function/ExcelFileFormatDocFunctionExtractor.java
@@ -111,7 +111,7 @@ public final class ExcelFileFormatDocFunctionExtractor {
 			_isVolatile = isVolatile;
 		}
 		private static String convertSpecialChars(String ss) {
-			StringBuffer sb = new StringBuffer(ss.length() + 4);
+			StringBuilder sb = new StringBuilder(ss.length() + 4);
 			for(int i=0; i<ss.length(); i++) {
 				char c = ss.charAt(i);
 				if (isSimpleAscii(c)) {
@@ -256,7 +256,7 @@ public final class ExcelFileFormatDocFunctionExtractor {
 		private boolean _isInsideTable;
 
 		private final List<String> _rowData;
-		private final StringBuffer _textNodeBuffer;
+		private final StringBuilder _textNodeBuffer;
 		private final List<Boolean> _rowNoteFlags;
 		private boolean _cellHasNote;
 
@@ -268,7 +268,7 @@ public final class ExcelFileFormatDocFunctionExtractor {
 			_elemNameStack = new Stack<>();
 			_isInsideTable = false;
 			_rowData = new ArrayList<>();
-			_textNodeBuffer = new StringBuffer();
+			_textNodeBuffer = new StringBuilder();
 			_rowNoteFlags = new ArrayList<>();
 		}