1 files changed, 16 insertions, 8 deletions
diff --git a/core/java/android/os/AsyncTask.java b/core/java/android/os/AsyncTask.java
index 4f91d19..7785f2b 100644
--- a/core/java/android/os/AsyncTask.java
+++ b/core/java/android/os/AsyncTask.java
@@ -209,9 +209,9 @@ public abstract class AsyncTask<Params, Progress, Result> {
     private static final int MESSAGE_POST_RESULT = 0x1;
     private static final int MESSAGE_POST_PROGRESS = 0x2;
 
-    private static final InternalHandler sHandler = new InternalHandler();
-
     private static volatile Executor sDefaultExecutor = SERIAL_EXECUTOR;
+    private static InternalHandler sHandler;
+
     private final WorkerRunnable<Params, Result> mWorker;
     private final FutureTask<Result> mFuture;
 
@@ -265,9 +265,13 @@ public abstract class AsyncTask<Params, Progress, Result> {
         FINISHED,
     }
 
-    /** @hide Used to force static handler to be created. */
-    public static void init() {
-        sHandler.getLooper();
+    private static Handler getHandler() {
+        synchronized (AsyncTask.class) {
+            if (sHandler == null) {
+                sHandler = new InternalHandler();
+            }
+            return sHandler;
+        }
     }
 
     /** @hide */
@@ -315,7 +319,7 @@ public abstract class AsyncTask<Params, Progress, Result> {
 
     private Result postResult(Result result) {
         @SuppressWarnings("unchecked")
-        Message message = sHandler.obtainMessage(MESSAGE_POST_RESULT,
+        Message message = getHandler().obtainMessage(MESSAGE_POST_RESULT,
                 new AsyncTaskResult<Result>(this, result));
         message.sendToTarget();
         return result;
@@ -620,7 +624,7 @@ public abstract class AsyncTask<Params, Progress, Result> {
      */
     protected final void publishProgress(Progress... values) {
         if (!isCancelled()) {
-            sHandler.obtainMessage(MESSAGE_POST_PROGRESS,
+            getHandler().obtainMessage(MESSAGE_POST_PROGRESS,
                     new AsyncTaskResult<Progress>(this, values)).sendToTarget();
         }
     }
@@ -635,10 +639,14 @@ public abstract class AsyncTask<Params, Progress, Result> {
     }
 
     private static class InternalHandler extends Handler {
+        public InternalHandler() {
+            super(Looper.getMainLooper());
+        }
+
         @SuppressWarnings({"unchecked", "RawUseOfParameterizedType"})
         @Override
         public void handleMessage(Message msg) {
-            AsyncTaskResult result = (AsyncTaskResult) msg.obj;
+            AsyncTaskResult<?> result = (AsyncTaskResult<?>) msg.obj;
             switch (msg.what) {
                 case MESSAGE_POST_RESULT:
                     // There is only one result