[vtkusers] JVM Crashes while Call vtkGlobalJavaHash.DeleteAll() in Ubuntu...

[Sebastien Jourdain]

Hi Sathish,

I don't really understand what you are trying to do and what you are facing
as issue. You have some memory leak when you quit your application or while
the application is running ?

Moreover, what do you mean by "the cache memory is not released."

Seb

On Tue, Apr 26, 2011 at 9:20 AM, Sathish kumar <kingvsk at aol.com> wrote:

>  Hi Sebastien,
>
> Thanks for your quick response. I tried vtkGlobalJavaHash.GC(). But the
> cache memory is not released. So only i moved to deleteAll().
>
> My code is
>
>         vtkGlobalJavaHash.GarbageCollector.SetAutoGarbageCollection(true);
>         vtkGlobalJavaHash.GarbageCollector.SetDebug(true);
>         vtkGlobalJavaHash.GC();
>
> I got the following line repeatedly as output.
>
>          vtkJavaGarbageCollector deleted 0 references.
>          vtkJavaGarbageCollector deleted 0 references.
>
>
> Please help me on this.
>
>   With Regards,
>
> Sathish Kumar V
>
>
>  -----Original Message-----
> From: Sebastien Jourdain <sebastien.jourdain at kitware.com>
> To: Sathish kumar <kingvsk at aol.com>
> Cc: vtkusers <vtkusers at vtk.org>
> Sent: Mon, Apr 25, 2011 6:05 pm
> Subject: Re: [vtkusers] JVM Crashes while Call
> vtkGlobalJavaHash.DeleteAll() in Ubuntu...
>
>  Hi Sathish,9
>
>  Did you try to call vtkGlobalJavaHash.GC() instead ? If you want to call
> DeleteAll(), you really have to make sure that no VTK object is used inside
> Java anymore. What I mean is, if for some reasons some methods get called on
> the vtkPanel after calling deleteAll(), you are definitely in trouble.
>
>  Seb
>
> On Mon, Apr 25, 2011 at 2:44 AM, Sathish kumar <kingvsk at aol.com> wrote:
>
>>  Hi all,
>>
>>     I am using VTK with Java wrapper for constructing Dicom 3D. It works
>> fine. But while closing the 3D window the cache memory is not released.
>> After I found that, vtkGlobalJavaHash.DeleteAll() method should be called to
>> destroy all vtk native objects. So i called that method within formclosed
>> event. This works fine with windows and Mac. But with Linux it leads to jvm
>> crash. I don't know where the problem is. Please help me on this.
>>
>> System Configrations:
>>     LinuxMint - Release 10 (Julia)
>>     Memory   - 2.0 GB
>>     Processor- Intel Core 2 Duo
>>     JVM        - Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
>>
>> I added the code snippet...
>>
>> loadDicomdata{
>>     // Code for Load the Dicom Images using vtkDicomImagereader...
>> }
>>
>> Load3DMIP(){
>>
>>     // Code for construct and Display the 3D in JFrame...
>> }
>>
>> private void formWindowClosed(java.awt.event.WindowEvent evt)
>> {//GEN-FIRST:event_formWindowClosed
>> *        vtkGlobalJavaHash.DeleteAll();*                    // Here the
>> Problem
>> }
>>
>>   With Regards,
>>
>> Sathish Kumar V
>>
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