1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 public class DelegatingLoader extends DefiningLoader {
18     private DefiningLoader defining_loader;
19 
DelegatingLoader(ClassLoader parent, DefiningLoader defining_loader)20     public DelegatingLoader(ClassLoader parent, DefiningLoader defining_loader) {
21         super(parent);
22         this.defining_loader = defining_loader;
23     }
24 
resetDefiningLoader(DefiningLoader defining_loader)25     public void resetDefiningLoader(DefiningLoader defining_loader) {
26         this.defining_loader = defining_loader;
27     }
28 
findClass(String name)29     protected Class<?> findClass(String name) throws ClassNotFoundException
30     {
31         if (name.equals("Test")) {
32             throw new Error("Unexpected DelegatingLoader.findClass(\"Test\")");
33         }
34         return super.findClass(name);
35     }
36 
loadClass(String name, boolean resolve)37     protected Class<?> loadClass(String name, boolean resolve)
38         throws ClassNotFoundException
39     {
40         if (name.equals("Test")) {
41             return defining_loader.loadClass(name, resolve);
42         }
43         return super.loadClass(name, resolve);
44     }
45 }
46