How to use

visitMethod

method

in

jersey.repackaged.org.objectweb.asm.ClassWriter

  Class<?> createBeanClass() {
    ClassWriter writer = new ClassWriter(0);
    String name = prefix + Integer.toString(generatedClassCounter.addAndGet(1));
    writer.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, name, null, "java/lang/Object", null);
    MethodVisitor methodVisitor = writer.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
    methodVisitor.visitCode();
    methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
    methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
    methodVisitor.visitInsn(Opcodes.RETURN);
    methodVisitor.visitMaxs(1, 1);
    methodVisitor.visitEnd();
    writer.visitEnd();
    byte[] bytecode = writer.toByteArray();
    ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
    try {
      Class<?> result = (Class<?>) defineClassMethod.invoke(classLoader, name.replace("/", "."), bytecode, 0,
          bytecode.length);
      LOGGER.fine("Created class " + result.getName());
      return result;
    } catch (Throwable t) {
      LOGGER.log(Level.SEVERE, "error calling ClassLoader.defineClass", t);
      return null;
    }
  }
}

  Class<?> createBeanClass() {
    ClassWriter writer = new ClassWriter(0);
    String name = prefix + Integer.toString(generatedClassCounter.addAndGet(1));
    writer.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, name, null, "java/lang/Object", null);
    MethodVisitor methodVisitor = writer.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
    methodVisitor.visitCode();
    methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
    methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
    methodVisitor.visitInsn(Opcodes.RETURN);
    methodVisitor.visitMaxs(1, 1);
    methodVisitor.visitEnd();
    writer.visitEnd();
    byte[] bytecode = writer.toByteArray();
    ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
    try {
      Class<?> result = (Class<?>) defineClassMethod.invoke(classLoader, name.replace("/", "."), bytecode, 0,
          bytecode.length);
      LOGGER.fine("Created class " + result.getName());
      return result;
    } catch (Throwable t) {
      LOGGER.log(Level.SEVERE, "error calling ClassLoader.defineClass", t);
      return null;
    }
  }
}

  Class<?> createBeanClass() {
    ClassWriter writer = new ClassWriter(0);
    String name = prefix + Integer.toString(generatedClassCounter.addAndGet(1));
    writer.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, name, null, "java/lang/Object", null);
    MethodVisitor methodVisitor = writer.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
    methodVisitor.visitCode();
    methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
    methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
    methodVisitor.visitInsn(Opcodes.RETURN);
    methodVisitor.visitMaxs(1, 1);
    methodVisitor.visitEnd();
    writer.visitEnd();
    byte[] bytecode = writer.toByteArray();
    ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
    try {
      Class<?> result = (Class<?>) defineClassMethod.invoke(classLoader, name.replace("/", "."), bytecode, 0,
          bytecode.length);
      LOGGER.fine("Created class " + result.getName());
      return result;
    } catch (Throwable t) {
      LOGGER.log(Level.SEVERE, "error calling ClassLoader.defineClass", t);
      return null;
    }
  }
}