1 // Copyright 2016 The Bazel Authors. All rights reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 package com.google.devtools.build.android.desugar.io; 15 16 /** Class loader that throws whenever it can, for use the parent of a class loader hierarchy. */ 17 public class ThrowingClassLoader extends ClassLoader { 18 @Override loadClass(String name, boolean resolve)19 protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException { 20 if (name.startsWith("java.")) { 21 // Use system class loader for java. classes, since ClassLoader.defineClass gets 22 // grumpy when those don't come from the standard place. 23 return super.loadClass(name, resolve); 24 } 25 throw new ClassNotFoundException(); 26 } 27 }