Work on issue #29422027: APR: Runtime restarts in system_server

More debugability.

Change-Id: I93b8e2ac63a25ca43d0eaedfcf8262ba92bc15d5

services/core/java/com/android/server/am/BroadcastQueue.java

@@ -227,7 +227,8 @@ public final class BroadcastQueue {
 
     public final boolean replaceParallelBroadcastLocked(BroadcastRecord r) {
         for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) {
-            if (r.intent.filterEquals(mParallelBroadcasts.get(i).intent)) {
+            final Intent curIntent = mParallelBroadcasts.get(i).intent;
+            if (r.intent.filterEquals(curIntent)) {
                 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST,
                         "***** DROPPING PARALLEL ["
                 + mQueueName + "]: " + r.intent);

services/core/java/com/android/server/am/BroadcastRecord.java

@@ -219,6 +219,9 @@ final class BroadcastRecord extends Binder {
             int _resultCode, String _resultData, Bundle _resultExtras, boolean _serialized,
             boolean _sticky, boolean _initialSticky,
             int _userId) {
+        if (_intent == null) {
+            throw new NullPointerException("Can't construct with a null intent");
+        }
         queue = _queue;
         intent = _intent;
         targetComp = _intent.getComponent();