Add regression test for alloc stack trace and unloading
Test creates allocations in a different loader, then unloads it.
This would free the ArtMethod except that we now visit them as
roots.
Bug: 26849503
Change-Id: Ied9f5942ff9022b1cd39052363f119a630ffbaef
diff --git a/test/130-hprof/src-ex/Allocator.java b/test/130-hprof/src-ex/Allocator.java
new file mode 100644
index 0000000..ee75a14
--- /dev/null
+++ b/test/130-hprof/src-ex/Allocator.java
@@ -0,0 +1,22 @@
+/*
+ * 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.
+ */
+
+// Simple allocator that returns a boot class path object.
+public class Allocator {
+ public static Object allocObject() {
+ return new Object();
+ }
+}
diff --git a/test/130-hprof/src/Main.java b/test/130-hprof/src/Main.java
index 67e5232..9868c61 100644
--- a/test/130-hprof/src/Main.java
+++ b/test/130-hprof/src/Main.java
@@ -16,6 +16,7 @@
import java.io.File;
import java.lang.ref.WeakReference;
+import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.lang.reflect.InvocationTargetException;
@@ -34,24 +35,21 @@
}
}
- public static void main(String[] args) {
- // Create some data.
- Object data[] = new Object[TEST_LENGTH];
- for (int i = 0; i < data.length; i++) {
- if (makeArray(i)) {
- data[i] = new Object[TEST_LENGTH];
- } else {
- data[i] = String.valueOf(i);
- }
+ private static Object allocInDifferentLoader() throws Exception {
+ final String DEX_FILE = System.getenv("DEX_LOCATION") + "/130-hprof-ex.jar";
+ Class pathClassLoader = Class.forName("dalvik.system.PathClassLoader");
+ if (pathClassLoader == null) {
+ throw new AssertionError("Couldn't find path class loader class");
}
- for (int i = 0; i < data.length; i++) {
- if (makeArray(i)) {
- Object data2[] = (Object[]) data[i];
- fillArray(data, data2, i);
- }
- }
- System.out.println("Generated data.");
+ Constructor constructor =
+ pathClassLoader.getDeclaredConstructor(String.class, ClassLoader.class);
+ ClassLoader loader = (ClassLoader)constructor.newInstance(
+ DEX_FILE, ClassLoader.getSystemClassLoader());
+ Class allocator = loader.loadClass("Allocator");
+ return allocator.getDeclaredMethod("allocObject", null).invoke(null);
+ }
+ private static void createDumpAndConv() throws RuntimeException {
File dumpFile = null;
File convFile = null;
@@ -88,6 +86,43 @@
}
}
+ public static void main(String[] args) throws Exception {
+ // Create some data.
+ Object data[] = new Object[TEST_LENGTH];
+ for (int i = 0; i < data.length; i++) {
+ if (makeArray(i)) {
+ data[i] = new Object[TEST_LENGTH];
+ } else {
+ data[i] = String.valueOf(i);
+ }
+ }
+ for (int i = 0; i < data.length; i++) {
+ if (makeArray(i)) {
+ Object data2[] = (Object[]) data[i];
+ fillArray(data, data2, i);
+ }
+ }
+ System.out.println("Generated data.");
+
+ createDumpAndConv();
+ Class klass = Class.forName("org.apache.harmony.dalvik.ddmc.DdmVmInternal");
+ if (klass == null) {
+ throw new AssertionError("Couldn't find path class loader class");
+ }
+ Method enableMethod = klass.getDeclaredMethod("enableRecentAllocations",
+ Boolean.TYPE);
+ if (enableMethod == null) {
+ throw new AssertionError("Couldn't find path class loader class");
+ }
+ enableMethod.invoke(null, true);
+ Object o = allocInDifferentLoader();
+ // Run GC to cause class unloading.
+ Runtime.getRuntime().gc();
+ createDumpAndConv();
+ // TODO: Somehow check contents of hprof file.
+ enableMethod.invoke(null, false);
+ }
+
private static File getHprofConf() {
// Use the java.library.path. It points to the lib directory.
File libDir = new File(System.getProperty("java.library.path"));
