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/*
* Copyright 2016 The Android Open Source Project
*
* Licensed 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.
*/
import java.lang.reflect.Field;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
class Main {
static class Inner {
final public static int abc = 10;
}
static class Nested {
}
public static void main(String[] args) {
System.loadLibrary(args[0]);
if (!checkAppImageLoaded()) {
System.out.println("App image is not loaded!");
} else if (!checkAppImageContains(Inner.class)) {
System.out.println("App image does not contain Inner!");
}
if (!checkInitialized(Inner.class))
System.out.println("Inner class is not initialized!");
if (!checkInitialized(Nested.class))
System.out.println("Nested class is not initialized!");
if (!checkInitialized(StaticFields.class))
System.out.println("StaticFields class is not initialized!");
if (!checkInitialized(StaticFieldsInitSub.class))
System.out.println("StaticFieldsInitSub class is not initialized!");
if (!checkInitialized(StaticFieldsInit.class))
System.out.println("StaticFieldsInit class is not initialized!");
if (!checkInitialized(StaticInternString.class))
System.out.println("StaticInternString class is not initialized!");
StringBuffer sb = new StringBuffer();
sb.append("java.");
sb.append("abc.");
sb.append("Action");
String tmp = sb.toString();
String intern = tmp.intern();
assertNotEqual(tmp, intern, "Dynamically constructed String, not interned.");
assertEqual(intern, StaticInternString.intent, "Static encoded literal String not interned.");
assertEqual(BootInternedString.boot, BootInternedString.boot.intern(),
"Static encoded literal String not moved back to runtime intern table.");
try {
Field f = StaticInternString.class.getDeclaredField("intent");
assertEqual(intern, f.get(null), "String Literals are not interned properly.");
} catch (Exception e) {
System.out.println("Exception");
}
assertEqual(StaticInternString.getIntent(), StaticInternString2.getIntent(),
"String Literals are not intenred properly, App image static strings duplicated.");
// reload the class StaticInternString, check whether static strings interned properly
final String DEX_FILE = System.getenv("DEX_LOCATION") + "/596-app-images.jar";
final String LIBRARY_SEARCH_PATH = System.getProperty("java.library.path");
try {
Class<?> pathClassLoader = Class.forName("dalvik.system.PathClassLoader");
if (pathClassLoader == null) {
throw new AssertionError("Counldn't find path class loader class");
}
Constructor<?> ctor =
pathClassLoader.getDeclaredConstructor(String.class, String.class, ClassLoader.class);
ClassLoader loader = (ClassLoader) ctor.newInstance(
DEX_FILE, LIBRARY_SEARCH_PATH, null);
Class<?> staticInternString = loader.loadClass("StaticInternString");
if (!checkAppImageContains(staticInternString)) {
System.out.println("Not loaded again.");
}
Method getIntent = staticInternString.getDeclaredMethod("getIntent");
assertEqual(StaticInternString.getIntent(), getIntent.invoke(staticInternString),
"Dynamically loaded app image's literal strings not interned properly.");
} catch (Exception e) {
e.printStackTrace(System.out);
}
}
public static native boolean checkAppImageLoaded();
public static native boolean checkAppImageContains(Class<?> klass);
public static native boolean checkInitialized(Class<?> klass);
public static void assertEqual(Object a, Object b, String msg) {
if (a != b)
System.out.println(msg);
}
public static void assertNotEqual(Object a, Object b, String msg) {
if (a == b)
System.out.println(msg);
}
}
class StaticFields{
public static int abc;
}
class StaticFieldsInitSub extends StaticFieldsInit {
final public static int def = 10;
}
class StaticFieldsInit{
final public static int abc = 10;
}
class StaticInternString {
final public static String intent = "java.abc.Action";
static public String getIntent() {
return intent;
}
}
class BootInternedString {
final public static String boot = "double";
}
class StaticInternString2 {
final public static String intent = "java.abc.Action";
static String getIntent() {
return intent;
}
}
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