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68 lines
2.3 KiB
68 lines
2.3 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.lang.reflect.Method;
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import java.lang.reflect.InvocationTargetException;
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import dalvik.system.PathClassLoader;
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// ClassLoader not delegating for non java. packages.
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class DelegateLastPathClassLoader extends PathClassLoader {
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public DelegateLastPathClassLoader(String dexPath, ClassLoader parent) {
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super(dexPath, parent);
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}
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@Override
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protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
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if (!name.startsWith("java.")) {
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try {
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return findClass(name);
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} catch (ClassNotFoundException ignore) {
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// Ignore and fall through to parent class loader.
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}
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}
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return super.loadClass(name, resolve);
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}
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}
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public class Main {
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private static Class<?> classFromDifferentLoader() throws Exception {
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final String DEX_FILE = System.getenv("DEX_LOCATION") + "/612-jit-dex-cache-ex.jar";
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ClassLoader loader = new DelegateLastPathClassLoader(DEX_FILE, Main.class.getClassLoader());
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return loader.loadClass("LoadedByAppClassLoader");
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}
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public static void main(String[] args) throws Exception {
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System.loadLibrary(args[0]);
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Class<?> cls = classFromDifferentLoader();
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Method m = cls.getDeclaredMethod("letMeInlineYou", A.class);
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B b = new B();
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// Invoke the method enough times to get an inline cache and get JITted.
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for (int i = 0; i < 10000; ++i) {
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m.invoke(null, b);
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}
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m = cls.getDeclaredMethod("areYouB", null);
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ClassLoader loader = (ClassLoader) m.invoke(null);
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if (loader != cls.getClassLoader()) {
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throw new Error("Wrong class loader");
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}
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}
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public static native void ensureJitCompiled(Class<?> cls, String method_name);
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}
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