1 files changed, 62 insertions, 0 deletions
diff --git a/test/661-classloader-allocator/src/Main.java b/test/661-classloader-allocator/src/Main.java
new file mode 100644
index 0000000000..40f8f7a4bf
--- /dev/null
+++ b/test/661-classloader-allocator/src/Main.java
@@ -0,0 +1,62 @@
+/*
+ * 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.lang.reflect.Constructor;
+
+public class Main {
+  static final String DEX_FILE =
+      System.getenv("DEX_LOCATION") + "/661-classloader-allocator-ex.jar";
+  static final String LIBRARY_SEARCH_PATH = System.getProperty("java.library.path");
+
+  private static void doUnloading() {
+    // Stop the JIT to ensure its threads and work queue are not keeping classes
+    // artifically alive.
+    stopJit();
+    // Do multiple GCs to prevent rare flakiness if some other thread is keeping the
+    // classloader live.
+    for (int i = 0; i < 5; ++i) {
+      Runtime.getRuntime().gc();
+    }
+    startJit();
+  }
+
+  public static void main(String[] args) throws Exception {
+    System.loadLibrary(args[0]);
+    loadClass();
+    doUnloading();
+    // fetchProfiles iterate over the ProfilingInfo, we used to crash in the presence
+    // of unloaded copied methods.
+    fetchProfiles();
+  }
+
+  public static void loadClass() throws Exception {
+    Class<?> pathClassLoader = Class.forName("dalvik.system.PathClassLoader");
+    if (pathClassLoader == null) {
+      throw new AssertionError("Couldn't find path class loader class");
+    }
+    Constructor<?> constructor =
+      pathClassLoader.getDeclaredConstructor(String.class, String.class, ClassLoader.class);
+    ClassLoader loader = (ClassLoader) constructor.newInstance(
+      DEX_FILE, LIBRARY_SEARCH_PATH, ClassLoader.getSystemClassLoader());
+    Class<?> otherClass = loader.loadClass("p1.OtherClass");
+    ensureJitCompiled(otherClass, "foo");
+  }
+
+  public static native void ensureJitCompiled(Class<?> cls, String methodName);
+  public static native void fetchProfiles();
+  public static native void stopJit();
+  public static native void startJit();
+}