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From "Scot P. Floess" <flo...@mindspring.com>
Subject Re: Memory Leak on Solaris?
Date Wed, 10 May 2006 11:34:39 GMT
Ritesh:

In just examining your code fragment, it wouldn't appear you are doing 
anything out of the ordinary (to cause a memory leak).  At a high level, 
what does this app do specifically?  Perhaps the failure is in another 
part of of your app (causing the out-of-memory issue)?  Is it possible, 
for instance, you are caching data in such a way that under Solaris 
there is more data and, for whatever reason, less data under Windows?  I 
could see a such a scenario where maybe on the Solaris machine you go 
seek out all files starting in / and store in an array, but under 
Windows you start in some other directory which yields a much smaller 
array - again just an example.  For the most part you state Solaris runs 
out of memory but its still hard to determine how "exact" your 
environment is between Solaris and Windows and what your app does.

Something else too...I would -hope- that your java app isn't somehow 
doing one thing for Windows and another for Solaris.  It looks like your 
are running Sun's VM for both Windows and Solaris.  With that said, I 
would expect the Solaris version to be the same, or better, than the 
Windows implementation ;)

Scot

Ritesh Trivedi wrote:
> I am starting my app from command line
>
> e.g. java [OPTIONS] -jar myjar.jar [my commandline args]
>
> I have tried both, with and without Xms and Xmx options. It still leaks.
>
> My app basically "executes" ant targets from within the app (cant
> really mention what app does). I am using the following code fragment
> to execute ant target
>
>        Project project = new Project();
>        ProjectHelper helper = null;
>        DefaultLogger logger = new DefaultLogger();
>
>        logger.setMessageOutputLevel(Project.MSG_INFO);
>        logger.setOutputPrintStream(System.out);
>        logger.setErrorPrintStream(System.err);
>        project.addBuildListener(logger);
>
>        File buildFile = new File(buildFilePath);
>        Throwable exception = null;
>
>        try
>        {
>            project.fireBuildStarted();
>            project.init();
>
>            helper = ProjectHelper.getProjectHelper();
>            String[] properties = getPropertyNames();
>
>            if (_log.isDebugEnabled())
>                LangUtil.printArray(" Combined Properties ", properties);
>
>            if (!LangUtil.isEmptyOrNull(properties))
>            {
>                int numProperties = properties.length;
>
>                for(int i=0; i<numProperties; i++)
>                    project.setProperty(properties[i],
> getPropertyValue(properties[i]).toString());
>            }
>            helper.parse(project, buildFile);
>
>            if (StringUtil.isEmptyOrNull(target))
>                project.executeTarget(project.getDefaultTarget());
>            else
>                project.executeTarget(target);
>
>
>            setProperties(project.getProperties());
>        }
>        catch (Exception bex)
>        {
>            exception = bex;
>            _error = true;
>            if (_log.isErrorEnabled())
>                _log.error("Error processing build script " + 
> bex.toString());
>        }
>        finally
>        {
>            if (project != null)
>            {
>                project.fireBuildFinished(exception);
>                project.removeBuildListener(logger);
>                logger = null;
>                project = null;
>            }
>            helper = null;
>        }
>
>> How are you starting your java app?  Are you using any memory options?
>> What does your app do?  Sorta difficult to say for sure without more
>> information.
>
> Ritesh Trivedi wrote:
>> Hi,
>>
>> I am using j2sdk 1.4.2_10 and Ant 1.6.5. I am using Ant Java API and
>> calling and executing Ant target from within my java program. I am
>> seeing Out Of Memory errors on Solaris on Windows 2000 it works
>> perfectly fine - no leaks.
>>
>> Any advise or pointers?
>>
>> Thanks
>> Ritesh
>>
>> On 7/18/05, Ritesh Trivedi <ritesh.trivedi@gmail.com> wrote:
>>> Hi,
>>>
>>> I am experiencing memory leak while executing Ant targets multiple
>>> times from java program. It seems to me that the classloader instances
>>> are lying around and takes heap space for each run.
>>>
>>> Any fixes for the issue?
>>>
>>> Thanks
>>> Ritesh
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
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>>
>>
>
> -- 
> Scot P. Floess
> 27 Lake Royale
> Louisburg, NC  27549
>
> 252-478-8087 (Home)
> 919-754-4592 (Work)
>
> Chief Architect JPlate  http://sourceforge.net/projects/jplate
> Chief Architect JavaPIM http://sourceforge.net/projects/javapim
>
>
>
> On 5/8/06, Ritesh Trivedi <ritesh.trivedi@gmail.com> wrote:
>> Hi,
>>
>> I am using j2sdk 1.4.2_10 and Ant 1.6.5. I am using Ant Java API and
>> calling and executing Ant target from within my java program. I am
>> seeing Out Of Memory errors on Solaris on Windows 2000 it works
>> perfectly fine - no leaks.
>>
>> Any advise or pointers?
>>
>> Thanks
>> Ritesh
>>
>> On 7/18/05, Ritesh Trivedi <ritesh.trivedi@gmail.com> wrote:
>> > Hi,
>> >
>> > I am experiencing memory leak while executing Ant targets multiple
>> > times from java program. It seems to me that the classloader instances
>> > are lying around and takes heap space for each run.
>> >
>> > Any fixes for the issue?
>> >
>> > Thanks
>> > Ritesh
>> >
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
>

-- 
Scot P. Floess
27 Lake Royale
Louisburg, NC  27549

252-478-8087 (Home)
919-754-4592 (Work)

Chief Architect JPlate  http://sourceforge.net/projects/jplate
Chief Architect JavaPIM http://sourceforge.net/projects/javapim


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