Here you can find the source of isJarFile(final URI uri)
private static boolean isJarFile(final URI uri)
//package com.java2s; /******************************************************************************* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF 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 * /*from w w w . j a va2s . co m*/ * 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.net.URI; public class Main { private static final String JAR_FILE_ENDING = "jar"; private static boolean isJarFile(final URI uri) { return JAR_FILE_ENDING.equals(uri.getScheme()); } }