Merge "Prevent HandlerThread from losing interrupted flag"

core/java/android/os/HandlerThread.java

@@ -71,23 +71,35 @@ public class HandlerThread extends Thread {
     /**
      * This method returns the Looper associated with this thread. If this thread not been started
      * or for any reason isAlive() returns false, this method will return null. If this thread
-     * has been started, this method will block until the looper has been initialized.  
+     * has been started, this method will block until the looper has been initialized.
      * @return The looper.
      */
     public Looper getLooper() {
         if (!isAlive()) {
             return null;
         }
-        
+
+        boolean wasInterrupted = false;
+
         // If the thread has been started, wait until the looper has been created.
         synchronized (this) {
             while (isAlive() && mLooper == null) {
                 try {
                     wait();
                 } catch (InterruptedException e) {
+                    wasInterrupted = true;
                 }
             }
         }
+
+        /*
+         * We may need to restore the thread's interrupted flag, because it may
+         * have been cleared above since we eat InterruptedExceptions
+         */
+        if (wasInterrupted) {
+            Thread.currentThread().interrupt();
+        }
+
         return mLooper;
     }