diff --git a/core/java/android/app/FragmentManager.java b/core/java/android/app/FragmentManager.java
index 7e1daa4..0519d3e 100644
--- a/core/java/android/app/FragmentManager.java
+++ b/core/java/android/app/FragmentManager.java
@@ -1890,7 +1890,7 @@
         if (mActive != null) {
             for (int i=0; i<mAdded.size(); i++) {
                 Fragment f = mAdded.get(i);
-                if (f != null && !f.mHidden && f.mUserVisibleHint) {
+                if (f != null && !f.mHidden) {
                     if (f.onContextItemSelected(item)) {
                         return true;
                     }
diff --git a/core/java/android/app/IInstrumentationWatcher.aidl b/core/java/android/app/IInstrumentationWatcher.aidl
index 405a3d8..6c8c4d6 100644
--- a/core/java/android/app/IInstrumentationWatcher.aidl
+++ b/core/java/android/app/IInstrumentationWatcher.aidl
@@ -21,7 +21,7 @@
 import android.os.Bundle;
 
 /** @hide */
-oneway interface IInstrumentationWatcher
+interface IInstrumentationWatcher
 {
     void instrumentationStatus(in ComponentName name, int resultCode,
             in Bundle results);
diff --git a/core/tests/coretests/src/android/app/InstrumentationTest.java b/core/tests/coretests/src/android/app/InstrumentationTest.java
new file mode 100644
index 0000000..ee3834c
--- /dev/null
+++ b/core/tests/coretests/src/android/app/InstrumentationTest.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package android.app;
+
+import android.os.Bundle;
+import android.test.InstrumentationTestCase;
+
+public class InstrumentationTest extends InstrumentationTestCase {
+
+    /**
+     * Simple stress test for {@link Instrumentation#sendStatus(int, android.os.Bundle)}, to
+     * ensure it can handle many rapid calls without failing.
+     */
+    public void testSendStatus() {
+        for (int i = 0; i < 10000; i++) {
+            Bundle bundle = new Bundle();
+            bundle.putInt("iterations", i);
+            getInstrumentation().sendStatus(-1, bundle);
+        }
+    }
+}
diff --git a/tests/Compatibility/Android.mk b/tests/Compatibility/Android.mk
new file mode 100644
index 0000000..5385413
--- /dev/null
+++ b/tests/Compatibility/Android.mk
@@ -0,0 +1,31 @@
+# Copyright (C) 2012 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.
+
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+# We only want this apk build for tests.
+LOCAL_MODULE_TAGS := tests
+
+# Include all test java files.
+LOCAL_SRC_FILES := \
+	$(call all-java-files-under, src)
+
+
+LOCAL_SDK_VERSION := 8
+LOCAL_PACKAGE_NAME := AppCompatibilityTest
+
+include $(BUILD_PACKAGE)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/Compatibility/AndroidManifest.xml b/tests/Compatibility/AndroidManifest.xml
new file mode 100644
index 0000000..103ef4c
--- /dev/null
+++ b/tests/Compatibility/AndroidManifest.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2012 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.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.android.compatibilitytest" >
+    <application >
+        <uses-library android:name="android.test.runner" />
+    </application>
+
+    <instrumentation
+        android:name=".AppCompatibilityRunner"
+        android:targetPackage="com.android.compatibilitytest"
+        android:label="App Compability Test Runner" />
+
+    <uses-sdk android:minSdkVersion="8"></uses-sdk>
+</manifest>
diff --git a/tests/Compatibility/src/com/android/compatibilitytest/AppCompatibility.java b/tests/Compatibility/src/com/android/compatibilitytest/AppCompatibility.java
new file mode 100644
index 0000000..4d60c83
--- /dev/null
+++ b/tests/Compatibility/src/com/android/compatibilitytest/AppCompatibility.java
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.compatibilitytest;
+
+import android.app.ActivityManager;
+import android.app.ActivityManager.ProcessErrorStateInfo;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import android.test.InstrumentationTestCase;
+import android.util.Log;
+
+import junit.framework.Assert;
+
+import java.util.Collection;
+
+/**
+ * Application Compatibility Test that launches an application and detects crashes.
+ */
+public class AppCompatibility extends InstrumentationTestCase {
+
+    private static final String TAG = "AppCompability";
+    private static final String PACKAGE_TO_LAUNCH = "package_to_launch";
+    private static final String APP_LAUNCH_TIMEOUT_MSECS = "app_launch_timeout_ms";
+    private static final String WORKSPACE_LAUNCH_TIMEOUT_MSECS = "workspace_launch_timeout_ms";
+
+    private int mAppLaunchTimeout = 7000;
+    private int mWorkspaceLaunchTimeout = 2000;
+
+    private Context mContext;
+    private ActivityManager mActivityManager;
+    private PackageManager mPackageManager;
+    private AppCompatibilityRunner mRunner;
+    private Bundle mArgs;
+
+    @Override
+    public void setUp() throws Exception{
+        super.setUp();
+        mRunner = (AppCompatibilityRunner) getInstrumentation();
+        assertNotNull("Could not fetch InstrumentationTestRunner.",mRunner);
+
+        mContext = mRunner.getTargetContext();
+        Assert.assertNotNull("Could not get the Context", mContext);
+
+        mActivityManager = (ActivityManager)
+                mContext.getSystemService(Context.ACTIVITY_SERVICE);
+        Assert.assertNotNull("Could not get Activity Manager", mActivityManager);
+
+        mPackageManager = mContext.getPackageManager();
+        Assert.assertNotNull("Missing Package Manager", mPackageManager);
+
+        mArgs = mRunner.getBundle();
+
+        // Parse optional inputs.
+        String appLaunchTimeoutMsecs = mArgs.getString(APP_LAUNCH_TIMEOUT_MSECS);
+        if (appLaunchTimeoutMsecs != null) {
+            mAppLaunchTimeout = Integer.parseInt(appLaunchTimeoutMsecs);
+        }
+        String workspaceLaunchTimeoutMsecs = mArgs.getString(WORKSPACE_LAUNCH_TIMEOUT_MSECS);
+        if (workspaceLaunchTimeoutMsecs != null) {
+            mWorkspaceLaunchTimeout = Integer.parseInt(workspaceLaunchTimeoutMsecs);
+        }
+    }
+
+    @Override
+    protected void tearDown() throws Exception {
+        super.tearDown();
+    }
+
+    /**
+     * Actual test case that launches the package and throws an exception on the first error.
+     * @throws Exception
+     */
+    public void testAppStability() throws Exception {
+        String packageName = mArgs.getString(PACKAGE_TO_LAUNCH);
+        if (packageName != null) {
+            Log.d(TAG, "Launching app " + packageName);
+            Collection<ProcessErrorStateInfo> err = launchActivity(packageName);
+            // Make sure there are no errors when launching the application, otherwise raise an
+            // exception with the first error encountered.
+            assertNull(getFirstError(err), err);
+        } else {
+            Log.d(TAG, "Missing argument, use " + PACKAGE_TO_LAUNCH +
+                    " to specify the package to launch");
+        }
+    }
+
+    /**
+     * Gets the first error in collection and return the long message for it.
+     * @param in {@link Collection} of {@link ProcessErrorStateInfo} to parse.
+     * @return {@link String} the long message of the error.
+     */
+    private String getFirstError(Collection<ProcessErrorStateInfo> in) {
+        if (in == null) {
+            return null;
+        }
+        ProcessErrorStateInfo err = in.iterator().next();
+        if (err != null) {
+            return err.stackTrace;
+        }
+        return null;
+    }
+
+    /**
+     * Launches and activity and queries for errors.
+     * @param packageName {@link String} the package name of the application to launch.
+     * @return  {@link Collection} of {@link ProcessErrorStateInfo} detected during the app launch.
+     */
+    private Collection<ProcessErrorStateInfo> launchActivity(String packageName) {
+        Intent homeIntent = new Intent(Intent.ACTION_MAIN);
+        homeIntent.addCategory(Intent.CATEGORY_HOME);
+        homeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+
+        Intent intent = mPackageManager.getLaunchIntentForPackage(packageName);
+
+        // We check for any Crash or ANR dialogs that are already up, and we ignore them.  This is
+        // so that we don't report crashes that were caused by prior apps (which those particular
+        // tests should have caught and reported already).  Otherwise, test failures would cascade
+        // from the initial broken app to many/all of the tests following that app's launch.
+        final Collection<ProcessErrorStateInfo> preErr = mActivityManager.getProcessesInErrorState();
+
+        // Launch Activity
+        mContext.startActivity(intent);
+
+        try {
+            Thread.sleep(mAppLaunchTimeout);
+        } catch (InterruptedException e) {
+            // ignore
+        }
+
+        // Send the "home" intent and wait 2 seconds for us to get there
+        mContext.startActivity(homeIntent);
+        try {
+            Thread.sleep(mWorkspaceLaunchTimeout);
+        } catch (InterruptedException e) {
+            // ignore
+        }
+
+        // See if there are any errors.  We wait until down here to give ANRs as much time as
+        // possible to occur.
+        final Collection<ProcessErrorStateInfo> postErr =
+                mActivityManager.getProcessesInErrorState();
+        // Take the difference between the error processes we see now, and the ones that were
+        // present when we started
+        if (preErr != null && postErr != null) {
+            postErr.removeAll(preErr);
+        }
+        return postErr;
+    }
+}
diff --git a/tests/Compatibility/src/com/android/compatibilitytest/AppCompatibilityRunner.java b/tests/Compatibility/src/com/android/compatibilitytest/AppCompatibilityRunner.java
new file mode 100644
index 0000000..258937f
--- /dev/null
+++ b/tests/Compatibility/src/com/android/compatibilitytest/AppCompatibilityRunner.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2012, 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.
+ */
+
+package com.android.compatibilitytest;
+
+import android.os.Bundle;
+import android.test.InstrumentationTestRunner;
+
+public class AppCompatibilityRunner extends InstrumentationTestRunner {
+
+    private Bundle mArgs;
+
+    @Override
+    public void onCreate(Bundle args) {
+        super.onCreate(args);
+        mArgs = args;
+    }
+
+    public Bundle getBundle() {
+        return mArgs;
+    }
+}