Implement class-pre-define time redefinition.
This allows one to redefine classes as they are being loaded without
restriction as to the types of transformations that may be included.
For example one is allowed to add additional methods or fields to the
class being defined.
Bug: 31684920
Test: mma -j40 test-art-host
Change-Id: I671ee13444c05f28424e727fd80d9d46c78ca287
diff --git a/test/935-non-retransformable/src/Main.java b/test/935-non-retransformable/src/Main.java
new file mode 100644
index 0000000..d9cc329
--- /dev/null
+++ b/test/935-non-retransformable/src/Main.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 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.Method;
+import java.util.Base64;
+
+public class Main {
+
+ /**
+ * base64 encoded class/dex file for
+ * class Transform {
+ * public void sayHi() {
+ * System.out.println("Hello");
+ * }
+ * public void sayGoodbye() {
+ * System.out.println("Goodbye");
+ * }
+ * }
+ */
+ private static final byte[] CLASS_BYTES = Base64.getDecoder().decode(
+ "yv66vgAAADQAHwoABwAQCQARABIIABMKABQAFQgAFgcAFwcAGAEABjxpbml0PgEAAygpVgEABENv" +
+ "ZGUBAA9MaW5lTnVtYmVyVGFibGUBAAVzYXlIaQEACnNheUdvb2RieWUBAApTb3VyY2VGaWxlAQAO" +
+ "VHJhbnNmb3JtLmphdmEMAAgACQcAGQwAGgAbAQAFSGVsbG8HABwMAB0AHgEAB0dvb2RieWUBAAlU" +
+ "cmFuc2Zvcm0BABBqYXZhL2xhbmcvT2JqZWN0AQAQamF2YS9sYW5nL1N5c3RlbQEAA291dAEAFUxq" +
+ "YXZhL2lvL1ByaW50U3RyZWFtOwEAE2phdmEvaW8vUHJpbnRTdHJlYW0BAAdwcmludGxuAQAVKExq" +
+ "YXZhL2xhbmcvU3RyaW5nOylWACAABgAHAAAAAAADAAAACAAJAAEACgAAAB0AAQABAAAABSq3AAGx" +
+ "AAAAAQALAAAABgABAAAAAQABAAwACQABAAoAAAAlAAIAAQAAAAmyAAISA7YABLEAAAABAAsAAAAK" +
+ "AAIAAAADAAgABAABAA0ACQABAAoAAAAlAAIAAQAAAAmyAAISBbYABLEAAAABAAsAAAAKAAIAAAAG" +
+ "AAgABwABAA4AAAACAA8=");
+ private static final byte[] DEX_BYTES = Base64.getDecoder().decode(
+ "ZGV4CjAzNQDpaN+7jX/ZLl9Jr0HAEV7nqL1YDuakKakgAwAAcAAAAHhWNBIAAAAAAAAAAIACAAAQ" +
+ "AAAAcAAAAAYAAACwAAAAAgAAAMgAAAABAAAA4AAAAAUAAADoAAAAAQAAABABAADwAQAAMAEAAJYB" +
+ "AACeAQAApwEAAK4BAAC7AQAA0gEAAOYBAAD6AQAADgIAAB4CAAAhAgAAJQIAADkCAAA+AgAARwIA" +
+ "AFMCAAADAAAABAAAAAUAAAAGAAAABwAAAAkAAAAJAAAABQAAAAAAAAAKAAAABQAAAJABAAAEAAEA" +
+ "DAAAAAAAAAAAAAAAAAAAAA4AAAAAAAAADwAAAAEAAQANAAAAAgAAAAAAAAAAAAAAAAAAAAIAAAAA" +
+ "AAAACAAAAAAAAABrAgAAAAAAAAEAAQABAAAAWgIAAAQAAABwEAQAAAAOAAMAAQACAAAAXwIAAAkA" +
+ "AABiAAAAGwEBAAAAbiADABAADgAAAAMAAQACAAAAZQIAAAkAAABiAAAAGwECAAAAbiADABAADgAA" +
+ "AAEAAAADAAY8aW5pdD4AB0dvb2RieWUABUhlbGxvAAtMVHJhbnNmb3JtOwAVTGphdmEvaW8vUHJp" +
+ "bnRTdHJlYW07ABJMamF2YS9sYW5nL09iamVjdDsAEkxqYXZhL2xhbmcvU3RyaW5nOwASTGphdmEv" +
+ "bGFuZy9TeXN0ZW07AA5UcmFuc2Zvcm0uamF2YQABVgACVkwAEmVtaXR0ZXI6IGphY2stNC4yMgAD" +
+ "b3V0AAdwcmludGxuAApzYXlHb29kYnllAAVzYXlIaQABAAcOAAYABw6HAAMABw6HAAAAAQIAgIAE" +
+ "sAIBAcgCAQHsAgAAAA0AAAAAAAAAAQAAAAAAAAABAAAAEAAAAHAAAAACAAAABgAAALAAAAADAAAA" +
+ "AgAAAMgAAAAEAAAAAQAAAOAAAAAFAAAABQAAAOgAAAAGAAAAAQAAABABAAABIAAAAwAAADABAAAB" +
+ "EAAAAQAAAJABAAACIAAAEAAAAJYBAAADIAAAAwAAAFoCAAAAIAAAAQAAAGsCAAAAEAAAAQAAAIAC" +
+ "AAA=");
+
+ public static void main(String[] args) {
+ doTest();
+ }
+
+ public static void doTest() {
+ addCommonTransformationResult("Transform", CLASS_BYTES, DEX_BYTES);
+ enableCommonRetransformation(true);
+ // Actually load the class.
+ Transform t = new Transform();
+ try {
+ // Call functions with reflection. Since the sayGoodbye function does not exist in the
+ // LTransform; when we compile this for the first time we need to use reflection.
+ Method hi = Transform.class.getMethod("sayHi");
+ Method bye = Transform.class.getMethod("sayGoodbye");
+ hi.invoke(t);
+ t.sayHi();
+ bye.invoke(t);
+ // Make sure we don't get called for transformation again.
+ addCommonTransformationResult("Transform", new byte[0], new byte[0]);
+ doCommonClassRetransformation(Transform.class);
+ hi.invoke(t);
+ t.sayHi();
+ bye.invoke(t);
+ } catch (Exception e) {
+ System.out.println("Unexpected error occured! " + e.toString());
+ e.printStackTrace();
+ }
+ }
+
+ // Transforms the class
+ private static native void doCommonClassRetransformation(Class<?>... klasses);
+ private static native void enableCommonRetransformation(boolean enable);
+ private static native void addCommonTransformationResult(String target_name,
+ byte[] class_bytes,
+ byte[] dex_bytes);
+}