Replace uses of StringBuffer with StringBuilder.

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

3 files changed, 11 insertions, 11 deletions

diff --git a/asm/src/main/java/org/aspectj/asm/AsmManager.java b/asm/src/main/java/org/aspectj/asm/AsmManager.java
index e81b91b4d..5a94c69fb 100644
--- a/asm/src/main/java/org/aspectj/asm/AsmManager.java
+++ b/asm/src/main/java/org/aspectj/asm/AsmManager.java
@@ -511,7 +511,7 @@ public class AsmManager implements IStructureModel {
 			for (IRelationship ir : rels) {
 				List<String> targets = ir.getTargets();
 				for (String thid : targets) {
-					StringBuffer sb = new StringBuffer();
+					StringBuilder sb = new StringBuilder();
 					if (modelFilter == null || modelFilter.wantsHandleIds()) {
 						sb.append("Hid:" + (ctr++) + ":");
 					}
@@ -637,7 +637,7 @@ public class AsmManager implements IStructureModel {
 				// unexpected - time to give up
 				return "";
 			}
-			StringBuffer qualifiedTypeNameFromHandle = new StringBuffer();
+			StringBuilder qualifiedTypeNameFromHandle = new StringBuilder();
 			if (hasPackage != -1) {
 				int classfileLoc = handle.indexOf(HandleProviderDelimiter.CLASSFILE.getDelimiter(), hasPackage);
 				qualifiedTypeNameFromHandle.append(handle.substring(hasPackage + 1, classfileLoc));
@@ -1196,7 +1196,7 @@ public class AsmManager implements IStructureModel {
 		}
 
 		public String toString() {
-			StringBuffer sb = new StringBuffer();
+			StringBuilder sb = new StringBuilder();
 			sb.append("Model node summary:\n");
 			Enumeration<String> nodeKeys = nodeTypeCount.keys();
 			while (nodeKeys.hasMoreElements()) {
diff --git a/asm/src/main/java/org/aspectj/asm/internal/JDTLikeHandleProvider.java b/asm/src/main/java/org/aspectj/asm/internal/JDTLikeHandleProvider.java
index 0c8271441..c7f24bc08 100644
--- a/asm/src/main/java/org/aspectj/asm/internal/JDTLikeHandleProvider.java
+++ b/asm/src/main/java/org/aspectj/asm/internal/JDTLikeHandleProvider.java
@@ -60,12 +60,12 @@ public class JDTLikeHandleProvider implements IElementHandleProvider {
 			if (end != -1) {
 				configFile = configFile.substring(start + 1, end);
 			} else {
-				configFile = new StringBuffer("=").append(configFile.substring(start + 1)).toString();
+				configFile = new StringBuilder("=").append(configFile.substring(start + 1)).toString();
 			}
 			ipe.setHandleIdentifier(configFile);
 			return configFile;
 		} else if (ipe.getKind() == IProgramElement.Kind.SOURCE_FOLDER) {
-			StringBuffer sb = new StringBuffer();
+			StringBuilder sb = new StringBuilder();
 			sb.append(createHandleIdentifier(ipe.getParent())).append("/");
 			// pr249216 - escape any embedded slashes
 			String folder = ipe.getName();
@@ -86,7 +86,7 @@ public class JDTLikeHandleProvider implements IElementHandleProvider {
 			parent = ipe.getParent().getParent();
 		}
 
-		StringBuffer handle = new StringBuffer();
+		StringBuilder handle = new StringBuilder();
 		// add the handle for the parent
 		handle.append(createHandleIdentifier(parent));
 		// add the correct delimiter for this ipe
@@ -133,7 +133,7 @@ public class JDTLikeHandleProvider implements IElementHandleProvider {
 		}
 		List<String> sourceRefs = ipe.getParameterSignaturesSourceRefs();
 		List<char[]> parameterTypes = ipe.getParameterSignatures();
-		StringBuffer sb = new StringBuffer();
+		StringBuilder sb = new StringBuilder();
 		if (sourceRefs != null) {
 			for (String sourceRef : sourceRefs) {
 				sb.append(HandleProviderDelimiter.getDelimiter(ipe));
diff --git a/asm/src/main/java/org/aspectj/asm/internal/ProgramElement.java b/asm/src/main/java/org/aspectj/asm/internal/ProgramElement.java
index 06dd1c6c6..02500018f 100644
--- a/asm/src/main/java/org/aspectj/asm/internal/ProgramElement.java
+++ b/asm/src/main/java/org/aspectj/asm/internal/ProgramElement.java
@@ -436,7 +436,7 @@ public class ProgramElement implements IProgramElement {
 				// not parameterized
 				return new StringBuilder("L").append(name.replace('.', '/')).append(';').toString();
 			} else {
-				StringBuffer nameBuff = new StringBuffer();
+				StringBuilder nameBuff = new StringBuilder();
 				int nestLevel = 0;
 				nameBuff.append("L");
 				for (int i = 0; i < name.length(); i++) {
@@ -448,7 +448,7 @@ public class ProgramElement implements IProgramElement {
 					case '<':
 						nameBuff.append("<");
 						nestLevel++;
-						StringBuffer innerBuff = new StringBuffer();
+						StringBuilder innerBuff = new StringBuilder();
 						while (nestLevel > 0) {
 							c = name.charAt(++i);
 							if (c == '<') {
@@ -459,7 +459,7 @@ public class ProgramElement implements IProgramElement {
 							}
 							if (c == ',' && nestLevel == 1) {
 								nameBuff.append(nameToSignature(innerBuff.toString()));
-								innerBuff = new StringBuffer();
+								innerBuff = new StringBuilder();
 							} else {
 								if (nestLevel > 0) {
 									innerBuff.append(c);
@@ -623,7 +623,7 @@ public class ProgramElement implements IProgramElement {
 	}
 
 	public String toSignatureString(boolean getFullyQualifiedArgTypes) {
-		StringBuffer sb = new StringBuffer();
+		StringBuilder sb = new StringBuilder();
 		sb.append(name);
 
 		List<char[]> ptypes = getParameterTypes();