code: // Licensed to the Software Freedom Conservancy (SFC) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The SFC 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.
  
  package org.openqa.selenium.grid.web;
  
  import java.io.IOException;
  import java.io.UncheckedIOException;
  import java.net.JarURLConnection;
  import java.net.URL;
  import java.util.Optional;
  import java.util.Set;
  import java.util.jar.JarFile;
  import org.openqa.selenium.internal.Require;
  
  public class ClassPathResource implements Resource {
  
    private final Resource delegate;
  
    public ClassPathResource(URL resourceUrl, String stripPrefix) {
      Require.nonNull("Resource URL", resourceUrl);
      Require.nonNull("Prefix to strip", stripPrefix);
  
      if ("jar".equals(resourceUrl.getProtocol())) {
        try {
          JarURLConnection juc = (JarURLConnection) resourceUrl.openConnection();
          JarFile jarFile = juc.getJarFile();
  
          this.delegate = new JarFileResource(jarFile, juc.getEntryName(), stripPrefix);
        } catch (IOException e) {
          throw new UncheckedIOException(e);
        }
      } else {
        throw new IllegalArgumentException(
            "Unable to handle scheme of type " + resourceUrl.getProtocol());
      }
    }
  
    @Override
    public String name() {
      return delegate.name();
    }
  
    @Override
    public Optional<Resource> get(String path) {
      Require.nonNull("Path", path);
      return delegate.get(path);
    }
  
    @Override
    public boolean isDirectory() {
      return delegate.isDirectory();
    }
  
    @Override
    public Set<Resource> list() {
      return delegate.list();
    }
  
    @Override
    public Optional<byte[]> read() {
      return delegate.read();
    }
  }
  