final ClassWriter cw = new ClassWriter(0);
final String parentClassNameInternal = parent.getName().replace('.', '/');
cw.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC + ACC_SUPER, subclassNameInternal, null, parentClassNameInternal, null);
final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, parentClassNameInternal, "<init>", "()V", false);
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);