Here you can find the source of getMethod(final Object object, final String methodName, final Class>... parameterClass)
public static Method getMethod(final Object object, final String methodName, final Class<?>... parameterClass) throws NoSuchMethodException
//package com.java2s; /*/*from w ww. j av a 2 s . c om*/ * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ import java.lang.reflect.Method; public class Main { public static Method getMethod(final Object object, final String methodName, final Class<?>... parameterClass) throws NoSuchMethodException { return getMethod(object.getClass(), methodName, parameterClass); } public static Method getMethod(final Object object, final String methodName) throws NoSuchMethodException { return getMethod(object.getClass(), methodName, new Class[0]); } public static Method getMethod(final Class<?> clazz, final String methodName, final Class<?>... parameterClass) throws NoSuchMethodException { return clazz.getMethod(methodName, parameterClass); } }