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How to get "throw" or "catch" event [message #138938]

Mon, 08 December 2008 10:29

Patrick Ouyang

Messages: 10
Registered: July 2009

Junior Member

Hi,
I have seen "throw" and "catch" events in the "TPTP data collection Event
Specification for the Java Profiler" document. So I wrote an example which
threw a custom exception and then caught it. Then I ran it with piAgent in
standalone mode and no filters applied, and got a "trace.trcxml " file.
But there were no "throw" or "catch" elements appeared in the file.

How to get them using piAgent? Does the based-JVMTI profiler,JPIAgent,
support the same?

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Re: How to get "throw" or "catch" event [message #139045 is a reply to message #138938]

Wed, 10 December 2008 16:37

Jonathan West

Messages: 49
Registered: July 2009

Member

Hi Patrick, the 'throw' and 'catch' exception events are not supported by
the present version of the JVMPI profiling agent, however, there is some
legacy code that suggests it might once have been supported, however, I
have no further details than this. The JVMTI profiling agent, OTOH, does
not generate any events for exceptions, and AFAIK has never supported this
feature.

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Re: How to get "throw" or "catch" event [message #139067 is a reply to message #138938]

Thu, 11 December 2008 08:35

Asaf Yaffe

Messages: 333
Registered: July 2009

Senior Member

Patrick,

As far as I know, none of the TPTP profilers (JVMPI and JVMTI based)
currently support these events.

However, you may want to take a look at Probekit (look-it up in the TPTP
online help). Using Probekit, you can write a "catch probe" that fires
when an exception is caught.

Another option is to use Aspects Oriented Programming tools for catching
these events. I am quite sure that the Eclipse AspectJ plugin can help...

My 2 cents.

Regards,
Asaf

--
Asaf Yaffe
Eclipse TPTP Committer, JVMTI Profiler

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