To be clear, you're getting these two log statements in the same request?
Or subsequent requests?
On Thu, Sep 17, 2009 at 1:48 AM, Vik <vik....@gmail.com> wrote:
> hie
> any updates on this please?
>
> yeah I did what you suggested by putting a log statement..
>
> and what I get are two different values from this block
>
> At first time of app startup
> vik.sakshum.sakshumweb.jsp.model.jdo.PMF <clinit>: Loading PMF in
> com.google.apphosting.runtime.security.userclassloa...@1f7cdc7
>
> and in another flow
> vik.sakshum.sakshumweb.jsp.model.jdo.PMF <clinit>: Loading PMF in
> com.google.apphosting.runtime.security.userclassloa...@1e6f0ef
>
>
> So, it means it is trying to load it in two different class loaders. So,
> how should I fix it?
>
> Thankx and Regards
>
> Vik
> Founder
> www.sakshum.com
> www.sakshum.blogspot.com
>
>
> On Thu, Sep 3, 2009 at 9:01 PM, Vik <vik....@gmail.com> wrote:
>
>> Hie
>> Thankx for taking time...
>>
>> I just adding the static block u mentioned in point 1 just after the
>> static block i have (in the above mail)
>>
>> I am sorry I did not get your point 2.
>> Right now what I do is: every time a request goes to a particular servlet
>> depending upon application flow and i call
>> PersistentManager pm = PMF.get().getPersistenceManager();
>>
>> and then do jdo stuff with GAE.
>>
>> So, i m not checking any kind of duplicate or anything. I was hoping the
>> PMF class getInstance which is implemented as a singleton pattern
>> takes care of all.
>>
>> Please guide.. my app right now sucks coz of this not intialized error for
>> PMF.
>>
>>
>> Thankx and Regards
>>
>> Vik
>> Founder
>> www.sakshum.com
>> www.sakshum.blogspot.com
>>
>>
>> On Wed, Sep 2, 2009 at 8:42 PM, Toby Reyelts <to...@google.com> wrote:
>>
>>> Thanks for the code. I have three suggestions (mostly from my previous
>>> post):
>>> 1) Are you maybe loading that singleton class in different
>>> classloaders? Try logging the classloader object reference that tries to
>>> create the PersistenceManagerFactory. You can add a static initializer ABOVE
>>> pmfInstance.
>>>
>>> static {
>>> logger.log(Level.SEVERE, "Loading PMF in " +
>>> PMF.class.getClassLoader()");
>>> }
>>>
>>> 2) Patch the datanucleus plugin code that makes the check for duplicate
>>> PMF creations to log a stacktrace first thing every time it's called. Then
>>> you'll know for sure which code paths are causing this to happen.
>>>
>>> 3) Disable the check if you're sure you're only creating the PMF a small
>>> number of times.
>>>
>>> On Wed, Sep 2, 2009 at 2:45 AM, Vik <vik....@gmail.com> wrote:
>>>
>>>> Hie
>>>> here is the code I am using:
>>>> package vik.sakshum.sakshumweb.jsp.model.jdo;
>>>>
>>>> import javax.jdo.JDOHelper;
>>>> import javax.jdo.PersistenceManagerFactory;
>>>>
>>>> import org.compass.core.Compass;
>>>> import org.compass.core.config.CompassConfiguration;
>>>> import org.compass.core.config.CompassEnvironment;
>>>> import org.compass.gps.CompassGps;
>>>> import org.compass.gps.device.jdo.Jdo2GpsDevice;
>>>> import org.compass.gps.impl.SingleCompassGps;
>>>>
>>>> public final class PMF {
>>>> private static final PersistenceManagerFactory pmfInstance =
>>>> JDOHelper.getPersistenceManagerFactory("transactions-optional");
>>>>
>>>> private static final Compass compass;
>>>> private static final CompassGps compassGps;
>>>>
>>>> static {
>>>> compass = new CompassConfiguration().setConnection("gae://index")
>>>> .setSetting(CompassEnvironment.ExecutorManager.EXECUTOR_MANAGER_TYPE,
>>>> "disabled")
>>>> .addScan("vik.sakshum.sakshumweb.jsp.model.jdo")
>>>> .buildCompass();
>>>>
>>>> compassGps = new SingleCompassGps(compass);
>>>> compassGps.addGpsDevice(new Jdo2GpsDevice("appenine",
>>>> pmfInstance));
>>>> compassGps.start();
>>>>
>>>> compassGps.index();
>>>>
>>>> }
>>>>
>>>> private PMF() {}
>>>>
>>>> public static PersistenceManagerFactory get() {
>>>> return pmfInstance;
>>>> }
>>>>
>>>> public static Compass getCompass(){
>>>> return compass;
>>>> }
>>>> }
>>>>
>>>> any clues?
>>>>
>>>> Thankx and Regards
>>>>
>>>> Vik
>>>> Founder
>>>> www.sakshum.com
>>>> www.sakshum.blogspot.com
>>>>
>>>>
>>>> On Wed, Sep 2, 2009 at 12:34 AM, Toby Reyelts <to...@google.com> wrote:
>>>>
>>>>> Vik,
>>>>>
>>>>> Do you have some sample code to reproduce this? By default, we throw an
>>>>> exception if you try to create more than one PersistenceManagerFactory.
>>>>> Are
>>>>> you using a singleton class to prevent more than one from being created?
>>>>> If
>>>>> so, are you maybe loading that singleton class in different classloaders?
>>>>> (Try logging the classloader object reference that tries to create the
>>>>> PersistenceManagerFactory).
>>>>>
>>>>> Lastly, you can disable the exception if you want (details should be in
>>>>> the exception message), but it will be a performance problem for you if
>>>>> you're creating more than a few PersistenceManagerFactory's.
>>>>>
>>>>>
>>>>> On Tue, Sep 1, 2009 at 1:51 PM, Vik <vik....@gmail.com> wrote:
>>>>>
>>>>>> anyone any updates on this please?
>>>>>> Thankx and Regards
>>>>>>
>>>>>> Vik
>>>>>> Founder
>>>>>> www.sakshum.com
>>>>>> www.sakshum.blogspot.com
>>>>>>
>>>>>>
>>>>>> On Sun, Aug 30, 2009 at 8:51 PM, Vik <vik....@gmail.com> wrote:
>>>>>>
>>>>>>> Hie
>>>>>>> Any one using compass on his GAE app?
>>>>>>>
>>>>>>> I am frequently getting error cannot initialize PMF where there is
>>>>>>> static code to initialize compass apis.
>>>>>>> Any idea how to resolve?
>>>>>>>
>>>>>>> Thankx and Regards
>>>>>>>
>>>>>>> Vik
>>>>>>> Founder
>>>>>>> www.sakshum.com
>>>>>>> www.sakshum.blogspot.com
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>
>
> >
>
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Google App Engine for Java" group.
To post to this group, send email to google-appengine-java@googlegroups.com
To unsubscribe from this group, send email to
google-appengine-java+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/google-appengine-java?hl=en
-~----------~----~----~----~------~----~------~--~---
