Hi Semyon, SequencedEvent is created with FOCUS_LAST + 1 as its id, whereas when it is dispatching events, it is looking for FOCUS_LAST + 2, which is causing the hang. I have modified it to look for only FOCUS_LAST + 1 events, which has fixed the problem.
Thanks, Krishna -----Original Message----- From: Semyon Sadetsky Sent: Thursday, March 15, 2018 9:14 PM To: Krishna Addepalli <krishna.addepa...@oracle.com>; awt-dev@openjdk.java.net Subject: Re: <AWT Dev> [11][JDK-8152974] AWT hang occurs when sequenced events Hi Krishna, You have replaced FOCUS_LAST+2 with the FOCUS_LAST+1 which is absolutely different event. They can be used interchangeably? --Semyon On 03/14/2018 07:53 AM, Krishna Addepalli wrote: > Hi Sergey, > > As per our discussion, I have modified the fix to process only > SequencedEvents and ignore others. I have also modified the test case to > include some dummy events between two SequencedEvents, and it works. > Here is the new webrev: > http://cr.openjdk.java.net/~kaddepalli/8152974/webrev01/ > > However, could you point me to a doc/spec which says that all the > SequencedEvents have to be processed together, even if other events in the > queue have arrived before? > > Thanks, > Krishna > > -----Original Message----- > From: Krishna Addepalli > Sent: Saturday, February 17, 2018 7:57 AM > To: Sergey Bylokhov <sergey.bylok...@oracle.com>; > awt-dev@openjdk.java.net; Semyon Sadetsky <semyon.sadet...@oracle.com> > Subject: RE: <AWT Dev> [11][JDK-8152974] AWT hang occurs when > sequenced events > > Hi Sergey, > > The event is present, but with the id > "java.awt.event.FocusEvent.FOCUS_LAST+1", whereas when it is pumping the > events, it is looking for "java.awt.event.FocusEvent.FOCUS_LAST+2", which is > not in the queue. > > Thanks, > Krishna > > -----Original Message----- > From: Sergey Bylokhov > Sent: Saturday, February 17, 2018 1:49 AM > To: Krishna Addepalli <krishna.addepa...@oracle.com>; > awt-dev@openjdk.java.net; Semyon Sadetsky <semyon.sadet...@oracle.com> > Subject: Re: <AWT Dev> [11][JDK-8152974] AWT hang occurs when > sequenced events > > Hi, Krishna. > On 16/02/2018 00:42, Krishna Addepalli wrote: >> The SentEvent.ID value is "java.awt.event.FocusEvent.FOCUS_LAST+2", and when >> in the function pumpOneEventForFilters, it tries to call >> EventQueue.getNextEvent(id), it looks for SentEvent.ID, which is not >> present, and then the queue blocks in the hope that someone will post that >> event. This is what is leading to the hang. > But both events are posted by the test, why the second event is not present > in the queue? > >
