Here you can find the source of getGetterOrNull(Class> clazz, String name, Class> type)
@Nullable public static Method getGetterOrNull(Class<?> clazz, String name, Class<?> type)
//package com.java2s; /*/*from w ww . ja va2 s . c o m*/ * Copyright 2011, Mysema Ltd * * Licensed 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; import javax.annotation.Nullable; public class Main { @Nullable public static Method getGetterOrNull(Class<?> clazz, String name, Class<?> type) { Class<?> beanClass = clazz; String methodName = ((type.equals(Boolean.class) || type.equals(boolean.class)) ? "is" : "get") + name; while (beanClass != null && !beanClass.equals(Object.class)) { try { return beanClass.getDeclaredMethod(methodName); } catch (SecurityException | NoSuchMethodException e) { // skip } beanClass = beanClass.getSuperclass(); } return null; } }