Well obviously I am doing something wrong. When i discovered that I
have to remove the appengine jar from my classpath - to avoid problem
with dataNucleus - yesterday, I also tried the same in my dev branch
with OpenJPA. I saw some other exception.
But now that I know it should work, i can continue investigating.
It's definitly a filebased instance of Derby DB. My connection string
points to "C:\bin\apache-james\..."
cheers
On 30 Mai, 19:27, Patrick Julien <pjul...@gmail.com> wrote:
> OpenJPA works fine with GWT. Your issues have to do with the fact
> you're running on AppEngine. I don't even see how it's possible you
> got derby running on AppEngine unless you're using an all memory
> database.
>
>
>
>
>
>
>
> On Mon, May 30, 2011 at 12:31 PM, roman <roman.za...@gmail.com> wrote:
> > allright. your push made me look into it a little deeper :-)
> > My solution to the "NoClassDefFoundError: java.io.FileOutputStream is
> > a restricted class" is disabling the usage of Google's App engine
> > under Project - Properties | Google | App Engine | Use Google App
> > Engine --> uncheck
>
> > After that i got "ClassCastException:
> > org.datanucleus.store.rdbms.RDBMSManager cannot be cast to
> > org.datanucleus.store.appengine.DatastoreManager" which made me
> > banning the datanucleus-appengine-1.0.8.final.jar from the projects
> > classpath as well.
> > I have no clue if this is a good idea, but my code is running so far
> > and I am able to make calls to the Derby database.
>
> > Which brings me back to my other question:
> > Is it utterly impossible to have the persistence layer running with
> > OpenJPA along with a GWT frontend? As I fear Apache James is dependent
> > on its familiar JPA technology.
>
> > again, thanks for your advice. you helped me loads
> > alltogether I spent already a week on these issues, and I'm craving
> > for answers
> > cheers
>
> > On 30 Mai, 14:48, Patrick Julien <pjul...@gmail.com> wrote:
> >> I think that's specific enough:
>
> >> "Caused by: java.lang.NoClassDefFoundError: java.io.FileOutputStream
> >> is a restricted class. Please see the Google App Engine developer's
> >> guide for more details."
>
> >> On Mon, May 30, 2011 at 4:29 AM, roman <roman.za...@gmail.com> wrote:
> >> > Thank you for your quick response.
> >> > I followed your advise and changed the underlying technology of my JPA
> >> > layer to DataNucleus.
>
> >> > But i ran into a different problem
>
> >> > log4j:WARN No appenders could be found for logger
> >> > (DataNucleus.Connection).
> >> > log4j:WARN Please initialize the log4j system properly.
> >> > [ERROR] javax.servlet.ServletContext log: unavailable
> >> > javax.persistence.PersistenceException: Provider error. Provider:
> >> > org.datanucleus.store.appengine.jpa.DatastorePersistenceProvider
> >> > at javax.persistence.Persistence.createFactory(Persistence.java:176)
> >> > ...
> >> > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> >> > at
> >> > org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
> >> > 409)
> >> > at org.mortbay.thread.QueuedThreadPool
> >> > $PoolThread.run(QueuedThreadPool.java:582)
> >> > Caused by: javax.jdo.JDOFatalInternalException: Unexpected exception
> >> > caught.
> >> > NestedThrowables:
> >> > java.lang.reflect.InvocationTargetException
> >> > at
> >> > javax.jdo.JDOHelper.invokeGetPersistenceManagerFactoryOnImplementation(JDOHelper.java:
> >> > 1186)
> >> > at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:
> >> > 803)
> >> > at javax.jdo.JDOHelper.getPersistenceManagerFactory(JDOHelper.java:
> >> > 698)
> >> > ...
> >> > Caused by: java.lang.NoClassDefFoundError: java.io.FileOutputStream is
> >> > a restricted class. Please see the Google App Engine developer's
> >> > guide for more details.
> >> > at
> >> > com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:
> >> > 51)
> >> > at
> >> > org.apache.derby.impl.services.stream.SingleStream.PBmakeFileHPW(Unknown
> >> > Source)
> >> > at org.apache.derby.impl.services.stream.SingleStream.run(Unknown
> >> > Source)
>
> >> > Well I see that i probably have got an error in the configuration of
> >> > the DataStorePersistenceProvider. Unfortunately, I am not sure what
> >> > the error could be. Is there any way to get a more specific
> >> > description of what is causing the problem?
>
> >> > cheers, roman
>
> >> > On 27 Mai, 15:28, Patrick Julien <pjul...@gmail.com> wrote:
> >> >> If you wan't to use JPA with AppEngine, you have to use the JPA that
> >> >> comes with AppEngine which is based on datanucleus. See
>
> >> >>http://code.google.com/appengine/docs/java/datastore/jpa/overview.html
>
> >> >> for an overview
>
> >> >> On Fri, May 27, 2011 at 5:56 AM, roman <roman.za...@gmail.com> wrote:
> >> >> > Hi,
> >> >> > I'm trying to implement a UserManagement based on GoogleWebToolkit
> >> >> > (Adding, deleting, assigning privileged; nothing special there). The
> >> >> >GWT-module is using a serparate persistence module, which I included
> >> >> > as a jar-file and which is based onOpenJPA.
>
> >> >> > The persistence layer is working fine as long is I run it standalone.
> >> >> > But when I wire it to myGWTproject, I can't create the
> >> >> > EntityManagerFactory any more. I get a NullPointerException in one of
> >> >> > theOpenJPAclasses, which I think is because that Google App Engine
> >> >> > replaced the default java.lang.ClassLoader.
>
> >> >> > Is it a bad idea to useOpenJPAwithGWT? Is there anything to
> >> >> > consider when combining these libraries?
>
> >> >> > For better understanding find the source code attached.
> >> >> > Any help would be greatly appreciated.
> >> >> > thx, roman
>
> >> >> > The server is running athttp://localhost:8888/
> >> >> > [WARN] Error for /usermgmtui/userInformation
> >> >> > java.lang.ExceptionInInitializerError
> >> >> > at org.apache.openjpa.kernel.Bootstrap.invokeFactory(Bootstrap.java:
> >> >> > 116)
> >> >> > at
> >> >> > org.apache.openjpa.kernel.Bootstrap.getBrokerFactory(Bootstrap.java:
> >> >> > 96)
> >> >> > at
> >> >> > org.apache.openjpa.persistence.OpenJPAPersistence.getEntityManagerFactory(OpenJPAPersistence.java:
> >> >> > 92)
> >> >> > at
> >> >> > com.mycompany.commons.jpa.JpaUserManagement.<init>(JpaUserManagement.java:
> >> >> > 64)
> >> >> > at
> >> >> > com.mycompany.commons.UserManagementImpl.setDatasoure(UserManagementImpl.java:
> >> >> > 71)
> >> >> > at
> >> >> > com.mycompany.ui.server.UserInformationServiceImpl.<init>(UserInformationServiceImpl.java:
> >> >> > 36)
> >> >> > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> >> >> > Method)
> >> >> > at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown
> >> >> > Source)
> >> >> > at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown
> >> >> > Source)
> >> >> > at java.lang.reflect.Constructor.newInstance(Unknown Source)
> >> >> > at java.lang.Class.newInstance0(Unknown Source)
> >> >> > at java.lang.Class.newInstance(Unknown Source)
> >> >> > at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:153)
> >> >> > at
> >> >> > org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:
> >> >> > 428)
> >> >> > at
> >> >> > org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:
> >> >> > 339)
> >> >> > at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
> >> >> > 487)
> >> >> > at org.mortbay.jetty.servlet.ServletHandler
> >> >> > $CachedChain.doFilter(ServletHandler.java:1166)
> >> >> > at
> >> >> > com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:
> >> >> > 35)
> >> >> > at org.mortbay.jetty.servlet.ServletHandler
> >> >> > $CachedChain.doFilter(ServletHandler.java:1157)
> >> >> > at
> >> >> > com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:
> >> >> > 58)
> >> >> > at org.mortbay.jetty.servlet.ServletHandler
> >> >> > $CachedChain.doFilter(ServletHandler.java:1157)
> >> >> > at
> >> >> > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:
> >> >> > 43)
> >> >> > at org.mortbay.jetty.servlet.ServletHandler
> >> >> > $CachedChain.doFilter(ServletHandler.java:1157)
> >> >> > at
> >> >> > com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:
> >> >> > 122)
> >> >> > at org.mortbay.jetty.servlet.ServletHandler
> >> >> > $CachedChain.doFilter(ServletHandler.java:1157)
> >> >> > at
> >> >> > com.google.appengine.tools.development.BackendServersFilter.doFilter(BackendServersFilter.java:
> >> >> > 94)
> >> >> > at org.mortbay.jetty.servlet.ServletHandler
> >> >> > $CachedChain.doFilter(ServletHandler.java:1157)
> >> >> > at
> >> >> > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
> >> >> > 388)
> >> >> > at
> >> >> > org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
> >> >> > 216)
> >> >> > at
> >> >> > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
> >> >> > 182)
> >> >> > at
> >> >> > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
> >> >> > 765)
> >> >> > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
> >> >> > 418)
> >> >> > at
> >> >> > com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:
> >> >> > 70)
> >> >> > at
> >> >> > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
> >> >> > 152)
> >> >> > at com.google.appengine.tools.development.JettyContainerService
> >> >> > $ApiProxyHandler.handle(JettyContainerService.java:351)
> >> >> > at
> >> >> > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
> >> >> > 152)
> >> >> > at org.mortbay.jetty.Server.handle(Server.java:326)
> >> >> > at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
> >> >> > 542)
> >> >> > at org.mortbay.jetty.HttpConnection
> >> >> > $RequestHandler.content(HttpConnection.java:938)
> >> >> > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
> >> >> > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
> >> >> > at
>
> ...
>
> Erfahren Sie mehr »
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