--- old/src/share/classes/jdk/internal/org/objectweb/asm/commons/Remapper.java Fri May 30 13:40:31 2014 +++ new/src/share/classes/jdk/internal/org/objectweb/asm/commons/Remapper.java Fri May 30 13:40:30 2014 @@ -147,17 +147,17 @@ } Type[] args = Type.getArgumentTypes(desc); - StringBuffer s = new StringBuffer("("); + StringBuilder sb = new StringBuilder("("); for (int i = 0; i < args.length; i++) { - s.append(mapDesc(args[i].getDescriptor())); + sb.append(mapDesc(args[i].getDescriptor())); } Type returnType = Type.getReturnType(desc); if (returnType == Type.VOID_TYPE) { - s.append(")V"); - return s.toString(); + sb.append(")V"); + return sb.toString(); } - s.append(')').append(mapDesc(returnType.getDescriptor())); - return s.toString(); + sb.append(')').append(mapDesc(returnType.getDescriptor())); + return sb.toString(); } public Object mapValue(Object value) {