1/*
2 * Copyright (C) 2011 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 */
16package android.os;
17
18import java.lang.reflect.Field;
19
20/**
21 * Class allowing access to package-protected methods/fields.
22 */
23public class Looper_Accessor {
24
25    public static void cleanupThread() {
26        // clean up the looper
27        Looper.sThreadLocal.remove();
28        try {
29            Field sMainLooper = Looper.class.getDeclaredField("sMainLooper");
30            sMainLooper.setAccessible(true);
31            sMainLooper.set(null, null);
32        } catch (SecurityException e) {
33            catchReflectionException();
34        } catch (IllegalArgumentException e) {
35            catchReflectionException();
36        } catch (NoSuchFieldException e) {
37            catchReflectionException();
38        } catch (IllegalAccessException e) {
39            catchReflectionException();
40        }
41
42    }
43
44    private static void catchReflectionException() {
45        assert(false);
46    }
47}
48