Java 5 code style

org.springframework.expression/src/main/java/org/springframework/expression/spel/SpelUtilities.java

@@ -44,7 +44,7 @@ public class SpelUtilities {
 	 */
 	private static void printAST(PrintStream out, SpelNode t, String indent) {
 		if (t != null) {
-			StringBuffer sb = new StringBuffer();
+			StringBuilder sb = new StringBuilder();
 			String s = (t.getType() == -1 ? "EOF" : t.getClass().getSimpleName());
 			sb.append(indent).append(s);
 			sb.append("  value=").append(t.getText());

org.springframework.expression/src/main/java/org/springframework/expression/spel/ast/CompoundExpression.java

@@ -110,7 +110,7 @@ public class CompoundExpression extends SpelNode {
 
 	@Override
 	public String toStringAST() {
-		StringBuffer sb = new StringBuffer();
+		StringBuilder sb = new StringBuilder();
 		for (int i = 0; i < getChildCount(); i++) {
 			sb.append(getChild(i).toStringAST());
 		}

org.springframework.expression/src/main/java/org/springframework/expression/spel/ast/Operator.java

@@ -54,16 +54,18 @@ public abstract class Operator extends SpelNode {
 	 */
 	@Override
 	public String toStringAST() {
-		StringBuffer sb = new StringBuffer();
-		if (getChildCount() > 0)
+		StringBuilder sb = new StringBuilder();
+		if (getChildCount() > 0) {
 			sb.append("(");
+		}
 		sb.append(getChild(0).toStringAST());
 		for (int i = 1; i < getChildCount(); i++) {
 			sb.append(" ").append(getOperatorName()).append(" ");
 			sb.append(getChild(i).toStringAST());
 		}
-		if (getChildCount() > 0)
+		if (getChildCount() > 0) {
 			sb.append(")");
+		}
 		return sb.toString();
 	}
 

org.springframework.expression/src/main/java/org/springframework/expression/spel/ast/Projection.java

@@ -86,7 +86,7 @@ public class Projection extends SpelNode {
 
 	@Override
 	public String toStringAST() {
-		StringBuffer sb = new StringBuffer();
+		StringBuilder sb = new StringBuilder();
 		return sb.append("!{").append(getChild(0).toStringAST()).append("}").toString();
 	}
 

org.springframework.expression/src/main/java/org/springframework/expression/spel/ast/Selection.java

@@ -123,7 +123,7 @@ public class Selection extends SpelNode {
 
 	@Override
 	public String toStringAST() {
-		StringBuffer sb = new StringBuffer();
+		StringBuilder sb = new StringBuilder();
 		switch (variant) {
 		case ALL:
 			sb.append("?{");

org.springframework.expression/src/test/java/org/springframework/expression/spel/TestScenarioCreator.java

@@ -198,7 +198,7 @@ public class TestScenarioCreator {
 	}
 
 	public static String reverseString(String input) {
-		StringBuffer backwards = new StringBuffer();
+		StringBuilder backwards = new StringBuilder();
 		for (int i = 0; i < input.length(); i++) {
 			backwards.append(input.charAt(input.length() - 1 - i));
 		}