Here you can find the source of getConstructor(Class clazz, Class... argTypes)
@SuppressWarnings("unchecked") public static Constructor getConstructor(Class clazz, Class... argTypes)
//package com.java2s; /*/* w w w . j a v a2 s .c om*/ * Copyright (C) 2012 Stormpath, Inc. * * 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.Constructor; public class Main { @SuppressWarnings("unchecked") public static Constructor getConstructor(Class clazz, Class... argTypes) { try { return clazz.getConstructor(argTypes); } catch (NoSuchMethodException e) { throw new IllegalStateException(e); } } }