Move InMemoryDexClassLoader to be a subtype of BaseDexClassLoader
Also write a test that class transformation works with this type of
class loader.
Test: mma -j40 test-art-host
Change-Id: Ibc2214191e04876ff7bbea010be6ec03b6f41904
diff --git a/test/949-in-memory-transform/src/Main.java b/test/949-in-memory-transform/src/Main.java
new file mode 100644
index 0000000..2ffabf5
--- /dev/null
+++ b/test/949-in-memory-transform/src/Main.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2017 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.util.Base64;
+import java.lang.reflect.*;
+import java.nio.ByteBuffer;
+
+public class Main {
+ /**
+ * base64 encoded class/dex file for
+ * public class Transform {
+ * public void sayHi() {
+ * System.out.println("hello");
+ * }
+ * }
+ */
+ private static final byte[] INITIAL_CLASS_BYTES = Base64.getDecoder().decode(
+ "yv66vgAAADQAHAoABgAOCQAPABAIABEKABIAEwcAFAcAFQEABjxpbml0PgEAAygpVgEABENvZGUB" +
+ "AA9MaW5lTnVtYmVyVGFibGUBAAVzYXlIaQEAClNvdXJjZUZpbGUBAA5UcmFuc2Zvcm0uamF2YQwA" +
+ "BwAIBwAWDAAXABgBAAVoZWxsbwcAGQwAGgAbAQAJVHJhbnNmb3JtAQAQamF2YS9sYW5nL09iamVj" +
+ "dAEAEGphdmEvbGFuZy9TeXN0ZW0BAANvdXQBABVMamF2YS9pby9QcmludFN0cmVhbTsBABNqYXZh" +
+ "L2lvL1ByaW50U3RyZWFtAQAHcHJpbnRsbgEAFShMamF2YS9sYW5nL1N0cmluZzspVgAhAAUABgAA" +
+ "AAAAAgABAAcACAABAAkAAAAdAAEAAQAAAAUqtwABsQAAAAEACgAAAAYAAQAAABEAAQALAAgAAQAJ" +
+ "AAAAJQACAAEAAAAJsgACEgO2AASxAAAAAQAKAAAACgACAAAAGgAIABsAAQAMAAAAAgAN");
+ private static final byte[] INITIAL_DEX_BYTES = Base64.getDecoder().decode(
+ "ZGV4CjAzNQAJX3mZphwHJCT1qdTz/GS+jXOR+O/9e3fMAgAAcAAAAHhWNBIAAAAAAAAAACwCAAAO" +
+ "AAAAcAAAAAYAAACoAAAAAgAAAMAAAAABAAAA2AAAAAQAAADgAAAAAQAAAAABAACsAQAAIAEAAGIB" +
+ "AABqAQAAdwEAAI4BAACiAQAAtgEAAMoBAADaAQAA3QEAAOEBAAD1AQAA/AEAAAECAAAKAgAAAQAA" +
+ "AAIAAAADAAAABAAAAAUAAAAHAAAABwAAAAUAAAAAAAAACAAAAAUAAABcAQAABAABAAsAAAAAAAAA" +
+ "AAAAAAAAAAANAAAAAQABAAwAAAACAAAAAAAAAAAAAAABAAAAAgAAAAAAAAAGAAAAAAAAABwCAAAA" +
+ "AAAAAQABAAEAAAARAgAABAAAAHAQAwAAAA4AAwABAAIAAAAWAgAACQAAAGIAAAAbAQoAAABuIAIA" +
+ "EAAOAAAAAQAAAAMABjxpbml0PgALTFRyYW5zZm9ybTsAFUxqYXZhL2lvL1ByaW50U3RyZWFtOwAS" +
+ "TGphdmEvbGFuZy9PYmplY3Q7ABJMamF2YS9sYW5nL1N0cmluZzsAEkxqYXZhL2xhbmcvU3lzdGVt" +
+ "OwAOVHJhbnNmb3JtLmphdmEAAVYAAlZMABJlbWl0dGVyOiBqYWNrLTQuMjUABWhlbGxvAANvdXQA" +
+ "B3ByaW50bG4ABXNheUhpABEABw4AGgAHDocAAAABAQCBgASgAgEBuAIAAA0AAAAAAAAAAQAAAAAA" +
+ "AAABAAAADgAAAHAAAAACAAAABgAAAKgAAAADAAAAAgAAAMAAAAAEAAAAAQAAANgAAAAFAAAABAAA" +
+ "AOAAAAAGAAAAAQAAAAABAAABIAAAAgAAACABAAABEAAAAQAAAFwBAAACIAAADgAAAGIBAAADIAAA" +
+ "AgAAABECAAAAIAAAAQAAABwCAAAAEAAAAQAAACwCAAA=");
+
+
+ /**
+ * base64 encoded class/dex file for
+ * public class Transform {
+ * public void sayHi() {
+ * System.out.println("Goodbye");
+ * }
+ * }
+ */
+ private static final byte[] TRANSFORMED_CLASS_BYTES = Base64.getDecoder().decode(
+ "yv66vgAAADQAHAoABgAOCQAPABAIABEKABIAEwcAFAcAFQEABjxpbml0PgEAAygpVgEABENvZGUB" +
+ "AA9MaW5lTnVtYmVyVGFibGUBAAVzYXlIaQEAClNvdXJjZUZpbGUBAA5UcmFuc2Zvcm0uamF2YQwA" +
+ "BwAIBwAWDAAXABgBAAdHb29kYnllBwAZDAAaABsBAAlUcmFuc2Zvcm0BABBqYXZhL2xhbmcvT2Jq" +
+ "ZWN0AQAQamF2YS9sYW5nL1N5c3RlbQEAA291dAEAFUxqYXZhL2lvL1ByaW50U3RyZWFtOwEAE2ph" +
+ "dmEvaW8vUHJpbnRTdHJlYW0BAAdwcmludGxuAQAVKExqYXZhL2xhbmcvU3RyaW5nOylWACEABQAG" +
+ "AAAAAAACAAEABwAIAAEACQAAAB0AAQABAAAABSq3AAGxAAAAAQAKAAAABgABAAAAEQABAAsACAAB" +
+ "AAkAAAAlAAIAAQAAAAmyAAISA7YABLEAAAABAAoAAAAKAAIAAAAaAAgAGwABAAwAAAACAA0=");
+ private static final byte[] TRANSFORMED_DEX_BYTES = Base64.getDecoder().decode(
+ "ZGV4CjAzNQAPXh6T3l1FObhHsKf1U2vi+0GmAvElxBLMAgAAcAAAAHhWNBIAAAAAAAAAACwCAAAO" +
+ "AAAAcAAAAAYAAACoAAAAAgAAAMAAAAABAAAA2AAAAAQAAADgAAAAAQAAAAABAACsAQAAIAEAAGIB" +
+ "AABqAQAAcwEAAIABAACXAQAAqwEAAL8BAADTAQAA4wEAAOYBAADqAQAA/gEAAAMCAAAMAgAAAgAA" +
+ "AAMAAAAEAAAABQAAAAYAAAAIAAAACAAAAAUAAAAAAAAACQAAAAUAAABcAQAABAABAAsAAAAAAAAA" +
+ "AAAAAAAAAAANAAAAAQABAAwAAAACAAAAAAAAAAAAAAABAAAAAgAAAAAAAAAHAAAAAAAAAB4CAAAA" +
+ "AAAAAQABAAEAAAATAgAABAAAAHAQAwAAAA4AAwABAAIAAAAYAgAACQAAAGIAAAAbAQEAAABuIAIA" +
+ "EAAOAAAAAQAAAAMABjxpbml0PgAHR29vZGJ5ZQALTFRyYW5zZm9ybTsAFUxqYXZhL2lvL1ByaW50" +
+ "U3RyZWFtOwASTGphdmEvbGFuZy9PYmplY3Q7ABJMamF2YS9sYW5nL1N0cmluZzsAEkxqYXZhL2xh" +
+ "bmcvU3lzdGVtOwAOVHJhbnNmb3JtLmphdmEAAVYAAlZMABJlbWl0dGVyOiBqYWNrLTQuMjUAA291" +
+ "dAAHcHJpbnRsbgAFc2F5SGkAEQAHDgAaAAcOhwAAAAEBAIGABKACAQG4Ag0AAAAAAAAAAQAAAAAA" +
+ "AAABAAAADgAAAHAAAAACAAAABgAAAKgAAAADAAAAAgAAAMAAAAAEAAAAAQAAANgAAAAFAAAABAAA" +
+ "AOAAAAAGAAAAAQAAAAABAAABIAAAAgAAACABAAABEAAAAQAAAFwBAAACIAAADgAAAGIBAAADIAAA" +
+ "AgAAABMCAAAAIAAAAQAAAB4CAAAAEAAAAQAAACwCAAA=");
+
+ public static void main(String[] args) throws Exception {
+ ClassLoader loader;
+ try {
+ // Art uses this classloader to do in-memory dex files. There is no support for defineClass
+ loader = (ClassLoader)Class.forName("dalvik.system.InMemoryDexClassLoader")
+ .getConstructor(ByteBuffer.class, ClassLoader.class)
+ .newInstance(ByteBuffer.wrap(INITIAL_DEX_BYTES),
+ ClassLoader.getSystemClassLoader());
+ } catch (ClassNotFoundException e) {
+ // Seem to be on RI. Just make a new ClassLoader that calls defineClass.
+ loader = new ClassLoader() {
+ public Class<?> findClass(String name) throws ClassNotFoundException {
+ if (name.equals("Transform")) {
+ return defineClass(name, INITIAL_CLASS_BYTES, 0, INITIAL_CLASS_BYTES.length);
+ } else {
+ throw new ClassNotFoundException("Couldn't find class: " + name);
+ }
+ }
+ };
+ }
+ doTest(loader);
+ }
+
+ public static void doTest(ClassLoader loader) throws Exception {
+ // Get the class
+ Class<?> transform_class = loader.loadClass("Transform");
+ Method say_hi_method = transform_class.getMethod("sayHi");
+ Object t = transform_class.newInstance();
+
+ // Run the actual test.
+ say_hi_method.invoke(t);
+ doCommonClassRedefinition(transform_class, TRANSFORMED_CLASS_BYTES, TRANSFORMED_DEX_BYTES);
+ say_hi_method.invoke(t);
+ }
+
+ // Transforms the class
+ private static native void doCommonClassRedefinition(Class<?> target,
+ byte[] class_file,
+ byte[] dex_file);
+}