Here you can find the source of cast(final Object original)
public static <T> T cast(final Object original)
//package com.java2s; /*//from www. j av a2 s . c om * Copyright (C) 2011 Everit Kft. (http://www.everit.org) * * 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 { /** * Casting in the way that it is not a problem for findbugs yet it can throw a classcast * exception. */ public static <T> T cast(final Object original) { @SuppressWarnings("unchecked") T result = (T) original; return result; } }