Mmm,
I think there's need of datanucleus experts.
Hope someone could clarify this subject
wada3 wrote:
It would be bug or limitation of development environment.
I have not met them on real appengine environment because
container looks like running on single thread model.
Normally it would not need to be synchronized I think.
On Sep 11, 4:41 pm, "patrizio.munzi" <[email protected]> wrote:
Isn't this an important subject to address?
Are all method calling the makePersistent method needed to be
synchronized...??
Is this a bug..??
No one has any consideration???
Thanks
On Sep 10, 10:35 am, "patrizio.munzi" <[email protected]> wrote:
I did a few more investigation and It looks like a threads safety
problem.
In fact if I synchronize the method
com.myapp.server.datastore.EventsManager.addEvent whithin
makePersistent is called everything works fine.
I think here experts are needed..
:-)
Bye
On Sep 10, 10:18 am, "patrizio.munzi" <[email protected]> wrote:
Hi everybody I'm having an ArrayOutOfBoundException from nucleus...
I don't know where it comes from...
Can anyone give me some information about it...
Here's the stack trace...
-----------------------------------------------
The server is running athttp://localhost:8181/
java.lang.ArrayIndexOutOfBoundsException: 1187
at org.datanucleus.plugin.ConfigurationElement.putAttribute
(ConfigurationElement.java:104)
at
org.datanucleus.store.appengine.DatastorePluginRegistry.getExtensionPoint
(DatastorePluginRegistry.java:59)
at org.datanucleus.plugin.PluginManager.getExtensionPoint
(PluginManager.java:65)
at
org.datanucleus.plugin.PluginManager.getConfigurationElementForExtension
(PluginManager.java:113)
at org.datanucleus.plugin.PluginManager.getAttributeValueForExtension
(PluginManager.java:230)
at org.datanucleus.ObjectManagerImpl.getCallbackHandler
(ObjectManagerImpl.java:3804)
at org.datanucleus.state.AbstractStateManager.getCallbackHandler
(AbstractStateManager.java:160)
at
org.datanucleus.state.JDOStateManagerImpl.initialiseForPersistentNew
(JDOStateManagerImpl.java:466)
at
org.datanucleus.state.StateManagerFactory.newStateManagerForPersistentNew
(StateManagerFactory.java:151)
at org.datanucleus.ObjectManagerImpl.persistObjectInternal
(ObjectManagerImpl.java:1297)
at org.datanucleus.ObjectManagerImpl.persistObject
(ObjectManagerImpl.java:1175)
at org.datanucleus.jdo.JDOPersistenceManager.jdoMakePersistent
(JDOPersistenceManager.java:669)
at org.datanucleus.jdo.JDOPersistenceManager.makePersistent
(JDOPersistenceManager.java:694)
at com.myapp.server.datastore.EventsManager.addEvent
(EventsManager.java:167)
at com.myapp.server.restlet.EventResource.addEvent(EventResource.java:
30)
at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.restlet.resource.ServerResource.doHandle(ServerResource.java:
390)
at org.restlet.resource.ServerResource.doHandle(ServerResource.java:
328)
at org.restlet.resource.ServerResource.doNegotiatedHandle
(ServerResource.java:581)
at org.restlet.resource.ServerResource.doConditionalHandle
(ServerResource.java:254)
at org.restlet.resource.ServerResource.handle(ServerResource.java:
923)
at org.restlet.resource.Finder.handle(Finder.java:510)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.routing.Router.doHandle(Router.java:321)
at org.restlet.routing.Router.handle(Router.java:520)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.engine.application.StatusFilter.doHandle
(StatusFilter.java:152)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.engine.ChainHelper.handle(ChainHelper.java:111)
at org.restlet.engine.application.ApplicationHelper.handle
(ApplicationHelper.java:72)
at org.restlet.Application.handle(Application.java:344)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.routing.Router.doHandle(Router.java:321)
at org.restlet.routing.Router.handle(Router.java:520)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.routing.Router.doHandle(Router.java:321)
at org.restlet.routing.Router.handle(Router.java:520)
at org.restlet.routing.Filter.doHandle(Filter.java:156)
at org.restlet.routing.Filter.handle(Filter.java:201)
at org.restlet.engine.ChainHelper.handle(ChainHelper.java:111)
at org.restlet.Component.handle(Component.java:403)
at org.restlet.Server.handle(Server.java:350)
at org.restlet.engine.ServerHelper.handle(ServerHelper.java:71)
at org.restlet.engine.http.HttpServerHelper.handle
(HttpServerHelper.java:149)
at org.restlet.ext.servlet.ServerServlet.service(ServerServlet.java:
967)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
487)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1093)
at
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter
(TransactionCleanupFilter.java:43)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1084)
at com.google.appengine.tools.development.StaticFileFilter.doFilter
(StaticFileFilter.java:121)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1084)
at org.mortbay.jetty.servlet.ServletHandler.handle
(ServletHandler.java:360)
at org.mortbay.jetty.security.SecurityHandler.handle
(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle
(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle
(ContextHandler.java:712)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
405)
at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle
(DevAppEngineWebAppContext.java:54)
at org.mortbay.jetty.handler.HandlerWrapper.handle
(HandlerWrapper.java:139)
at com.google.appengine.tools.development.JettyContainerService
$ApiProxyHandler.handle(JettyContainerService.java:313)
at org.mortbay.jetty.handler.HandlerWrapper.handle
(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:313)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
506)
at org.mortbay.jetty.HttpConnection$RequestHandler.content
(HttpConnection.java:844)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
at org.mortbay.io.nio.SelectChannelEndPoint.run
(SelectChannelEndPoint.java:396)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run
(BoundedThreadPool.java:442)
------------------------------------------
Thanks
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