Here you can find the source of newInstance(Class> clazz)
protected static Object newInstance(Class<?> clazz)
//package com.java2s; /*//from w w w . jav a2s . c o m * Copyright 2015-2016 the original author or authors. * * 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. */ public class Main { protected static Object newInstance(Class<?> clazz) { try { return clazz.newInstance(); } catch (InstantiationException e) { throw new IllegalStateException( "Failed to instantiate the class: " + clazz, e); } catch (IllegalAccessException e) { throw new IllegalStateException( "Illegal access to the constructor of the class: " + clazz, e); } } }