ByteArrayOutputStream out;
byte[] result;
try {
reader = new ClassReader( new ByteArrayInputStream( classfileBuffer ) );
new TransformingClassGenerator(
new ClassReaderGenerator( reader, attributes(), skipDebug() ), t
).generateClass( w );
out = new ByteArrayOutputStream();
out.write( w.toByteArray() );
result = out.toByteArray();
out.close();