if( node.version > 50 ) {
opts = ClassWriter.COMPUTE_FRAMES;
}
ClassWriter cw = new ClassWriter( opts );
node.accept(new ClassVisitor( Opcodes.ASM4, cw) {});
byte[] result = cw.toByteArray();
// String postCheck = verify( result );
// if ( postCheck.trim().length() > 0 ) {
// log( "Class " + node.name + " failed postcheck:\n " + postCheck );
// throw new Exception( "Class " + node.name + " failed postcheck:\n" + postCheck );