Here you can find the source of getResourceAsStream(Class> testClass, String resource)
public static InputStream getResourceAsStream(Class<?> testClass, String resource)
//package com.java2s; /*/* w w w .j av a 2 s .c o m*/ * Licensed to Booz Allen Hamilton under one or more contributor * license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright * ownership. Booz Allen Hamilton 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.io.InputStream; public class Main { public static InputStream getResourceAsStream(Class<?> testClass, String resource) { return testClass.getResourceAsStream(getResourcePath(testClass, resource)); } static String getResourcePath(Class<?> testClass, String resource) { String canonicalName = testClass.getCanonicalName(); String folder = canonicalName.replaceAll("\\.", "/"); return String.format("/%s/%s", folder, resource); } }