[jdom-interest] SAXBuilder.build() hangs JVM usingJDOMBeta 9

Forsberg,Michael Michael.Forsberg at tre.se
Tue Nov 4 00:35:14 PST 2003


Hi Alex,

You might be right in that assumption. Currently using:

java version "1.3.1_07"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_07-b02)
Java HotSpot(TM) Client VM (build 1.3.1_07-b02, mixed mode)

on 

SunOS 5.8

Thanks,
Michael

-----Original Message-----
From: Alex Rosen [mailto:arosen at novell.com]
Sent: den 3 november 2003 19:13
To: jdom-interest at jdom.org; Forsberg,Michael
Subject: RE: [jdom-interest] SAXBuilder.build() hangs JVM usingJDOMBeta
9


Hmm. That sounds like a VM bug doesn't it? Java code shouldn't be able
to hang the VM itself. What VM and what platform are you using?

Alex

>>> "Forsberg,Michael" <Michael.Forsberg at tre.se> 11/3/2003 3:44:42 AM
>>>
Hi Alex,

The problem is that when the application hangs the java process is not
responding to any kernel signals at all. The applications starts to
create a number of threads that starts-up and when some of the threads
has started to build the JDOM-document the process hangs. I've done a
thread dump just before the process hangs and I can do this again and
send the information to the list.

Thanks,
Michael

-----Original Message-----
From: Alex Rosen [mailto:arosen at novell.com] 
Sent: den 2 november 2003 21:14
To: jdom-interest at jdom.org; Forsberg,Michael
Subject: Re: [jdom-interest] SAXBuilder.build() hangs JVM using
JDOMBeta
9


I don't remember anyone ever reporting this. Do you want to send the
thread dump to the mailing list?

Alex

>>> "Forsberg,Michael" <Michael.Forsberg at tre.se> 10/31/2003 7:50:01 AM
>>>
Hi,

My application has the purpose to parse and validate a large amount of
XML-files and application is creating a number of threads that get a
task from a synchronized list what XML file to start validating. When
the thread has finished to validate XML-file it goes back to the
synchronized list and gets a new file from the taskManger. I've
debugged
the application and found that the JVM sometimes hangs and is not
responding to any kill signals, used -QUIT, to get a stack dump. After
that 2-3 threads has starting to build the JDOM-Document the
application
hangs.  

Has anyone excepted the same problem with the build() operation?

Thanks,
Michael

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