Fix event parsing

ART tests are failing with the introduction of aosp/2320257.

The issue is that PacketDispatcher assumes that is a packet
is not a response to a cmd, it is an Event:Composite which
is incorrect. It could also be a JDWP extension event such
as DDM.

Bug: 262643398
Bug: 286794967
Test: Used the following tests

mkdir master-art; cd master-art
repo init -u  https://android.googlesource.com/platform/manifest  -b master-art --partial-clone --clone-filter=blob:limit=10M
. build/envsetup.sh
lunch armv8-eng
art/tools/buildbot-build.sh --host
art/tools/run-libjdwp-tests.sh --mode=host --test org.apache.harmony.jpda.tests.jdwp.VirtualMachine_ExitTest#testExit001
(cherry picked from https://android-review.googlesource.com/q/commit:4fcd0e358265d763d9e64e518c0f5e3db6d16406)
Merged-In: I9bfd325975b4ab9b4a556adb221ab7a249f7c491
Change-Id: I9bfd325975b4ab9b4a556adb221ab7a249f7c491
Cherrypick a fix to apache-harmony

jdwp/src/test/java/org/apache/harmony/jpda/tests/framework/jdwp/PacketDispatcher.java

diff --git a/jdwp/src/test/java/org/apache/harmony/jpda/tests/framework/jdwp/PacketDispatcher.java b/jdwp/src/test/java/org/apache/harmony/jpda/tests/framework/jdwp/PacketDispatcher.java
index feceb8f..8870845 100644
--- a/jdwp/src/test/java/org/apache/harmony/jpda/tests/framework/jdwp/PacketDispatcher.java
+++ b/jdwp/src/test/java/org/apache/harmony/jpda/tests/framework/jdwp/PacketDispatcher.java
@@ -33,6 +33,7 @@
 
 import org.apache.harmony.jpda.tests.framework.LogWriter;
 import org.apache.harmony.jpda.tests.framework.TestOptions;
+import org.apache.harmony.jpda.tests.framework.jdwp.JDWPCommands.EventCommandSet;
 import org.apache.harmony.jpda.tests.framework.jdwp.exceptions.TimeoutException;
 
 /**
@@ -554,7 +555,12 @@
                     EventPacket eventPacket = new EventPacket(packet);
                     // below is to check received events for correctness
 
-                    // below is trace for received events
+                    // Check this is indeed an Event (this could be a JDWP extension)
+                    // If it is not, ignore it.
+                    if (eventPacket.getCommandSet() != EventCommandSet.CommandSetID) {
+                        continue;
+                    }
+
                     ParsedEvent[] parsedEvents = ParsedEvent
                             .parseEventPacket(eventPacket);
                     if ((eventRequestIDForTrace >= 0)