Hi,
Are you using GlassFish V1? It appears to be a bug in that version of
TopLink Essential which was assuming the thread's context class loader
to be an instance of URLClassLoader. This bug has been fixed in
GlassFish V1 UR1 as well as Glassfish V2 [1]. Please use one of the
newer builds and that exception should go away.
You may also like to revisit your EJB because it is not correctly using
the JPA APIs. Since you are using a static variable to keep a reference
to the EntityManager, the same EntityManager can be called concurrently
by the container and that can lead to runtime errors as an entity
manager may not be thread-safe object. So, I suggest you change your
code like this:
@Stateless
@WebService(serviceName="CompanyService")
public class CompanyManagerImpl implements CompanyManager {
// no need to use EntityManagerFactory, use injection to get an EM.
@PersistenceContext(unitName="pu1")
private EntityManager manager;
...
Thanks,
Sahoo
[1]
http://fisheye5.cenqua.com/browse/glassfish/entity-persistence/src/java/oracle/toplink/essentials/internal/ejb/cmp3/JavaSECMPInitializer.java?r1=1.13&r2=1.12
Kenneth Clark wrote:
> I got some really annoying error here and the stack trace ain't very
> helpful
>
> Exception creating stateless session bean : [{0}]
> java.lang.ExceptionInInitializerError
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
> at java.lang.Class.newInstance0(Class.java:350)
> at java.lang.Class.newInstance(Class.java:303)
> at com.sun.ejb.containers.StatelessSessionContainer.createStatelessEJB(StatelessSessionContainer.java:492)
> at com.sun.ejb.containers.StatelessSessionContainer.access$100(StatelessSessionContainer.java:96)
> at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:746)
> at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(NonBlockingPool.java:186)
> at com.sun.ejb.containers.StatelessSessionContainer._getContext(StatelessSessionContainer.java:469)
> at com.sun.ejb.containers.BaseContainer.getContext(BaseContainer.java:1566)
> at com.sun.ejb.containers.WebServiceInvocationHandler.invoke(WebServiceInvocationHandler.java:133)
> at $Proxy86.requestCompany(Unknown Source)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at com.sun.xml.ws.server.PeptTie._invoke(PeptTie.java:58)
> at com.sun.xml.ws.protocol.soap.server.SOAPMessageDispatcher.invokeEndpoint(SOAPMessageDispatcher.java:278)
> at com.sun.xml.ws.protocol.soap.server.SOAPMessageDispatcher$SoapInvoker.invoke(SOAPMessageDispatcher.java:586)
> at com.sun.xml.ws.protocol.soap.server.SOAPMessageDispatcher.receive(SOAPMessageDispatcher.java:145)
> at com.sun.xml.ws.server.Tie.handle(Tie.java:88)
> at com.sun.enterprise.webservice.Ejb3MessageDispatcher.handlePost(Ejb3MessageDispatcher.java:160)
> at com.sun.enterprise.webservice.Ejb3MessageDispatcher.invoke(Ejb3MessageDispatcher.java:89)
> at com.sun.enterprise.webservice.EjbWebServiceServlet.dispatchToEjbEndpoint(EjbWebServiceServlet.java:178)
> at com.sun.enterprise.webservice.EjbWebServiceServlet.service(EjbWebServiceServlet.java:109)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> at com.sun.enterprise.web.AdHocContextValve.invoke(AdHocContextValve.java:100)
> at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:566)
> at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:536)
> at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:71)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:182)
> at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:566)
> at com.sun.enterprise.web.VirtualServerPipeline.invoke(VirtualServerPipeline.java:120)
> at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:939)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:137)
> at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:566)
> at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:536)
> at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:939)
> at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:231)
> at com.sun.enterprise.web.connector.grizzly.ProcessorTask.invokeAdapter(ProcessorTask.java:667)
> at com.sun.enterprise.web.connector.grizzly.ProcessorTask.processNonBlocked(ProcessorTask.java:574)
> at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:844)
> at com.sun.enterprise.web.connector.grizzly.ReadTask.executeProcessorTask(ReadTask.java:287)
> at com.sun.enterprise.web.connector.grizzly.ReadTask.doTask(ReadTask.java:212)
> at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:252)
> at com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:75)
> Caused by: Exception [TOPLINK-7189] (Oracle TopLink Essentials - 2006.4 (Build 060412)): oracle.toplink.essentials.exceptions.ValidationException
> Exception Description: Cannot create temp classloader from current loader: [EJBClassLoader :
> urlSet = [URLEntry : file:/C:/glassfish/domains/domain1/applications/j2ee-modules/PhoenixV2_1/, URLEntry : file:/C:/glassfish/domains/domain1/generated/ejb/j2ee-modules/PhoenixV2_1/]
> doneCalled = false
> Parent -> EJBClassLoader :
> urlSet = []
> doneCalled = false
> Parent -> java.net.URLClassLoader_at_15ac3c9
>
> ]
> at oracle.toplink.essentials.exceptions.ValidationException.currentLoaderNotValid(ValidationException.java:1865)
> at oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.createTempLoader(JavaSECMPInitializer.java:221)
> at oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.createTempLoader(JavaSECMPInitializer.java:210)
> at oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.callPredeploy(JavaSECMPInitializer.java:129)
> at oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.initPersistenceUnits(JavaSECMPInitializer.java:309)
> at oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.initialize(JavaSECMPInitializer.java:335)
> at oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.initializeFromMain(JavaSECMPInitializer.java:372)
> at oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.getJavaSECMPInitializer(JavaSECMPInitializer.java:83)
> at oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.getServerSession(EntityManagerFactoryProvider.java:283)
> at oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.createEntityManagerFactory(EntityManagerFactoryProvider.java:125)
> at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)
> at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)
> at za.co.datapro.business.company.manager.CompanyManagerImpl.<clinit>(CompanyManagerImpl.java:49)
> ... 48 more
>
>
> the EJB looks like
>
> @Stateless
> @WebService(serviceName="CompanyService")
> public class CompanyManagerImpl implements CompanyManager {
>
>
> private final static EntityManagerFactory managerFactory = Persistence.createEntityManagerFactory("pu1");
> private final static EntityManager manager = managerFactory.createEntityManager();
>
> private String responseMsg = "";
> private int responseCode = 0;
> private int responseType = 0;
>
> public static class FactoryImpl implements Factory {
> public CompanyManager create(){
> return new CompanyManagerImpl();
> }
> }
>
> private static final Factory defaultFactory = new FactoryImpl();
>
> public CompanyManagerImpl(){}
>
> @WebMethod(operationName="addCompany")
> public CompanyResponse addCompany(CompanyRequest companyRequest){
>
> }
>
> @WebMethod(operationName="updateCompany")
> public CompanyResponse updateCompany(CompanyRequest companyRequest){
>
> }
>
>
> @WebMethod(operationName="deleteCompany")
> public CompanyResponse deleteCompany(CompanyRequest companyRequest){
>
> }
>
> public static Factory getDefaultFactory(){
> return defaultFactory;
> }
>
> @WebMethod(operationName="requestCompanies")
> public ListResponse requestCompanies(ListRequest companyListRequest){
>
> }
>
> @WebMethod(operationName="requestCompany")
> public CompanyResponse requestCompany(CompanyRequest companyRequest){
>
> }
>
> }
>
> Can anyone see anything glaringly obvious as to why I would be receiving this error?
>
>
> Thanks
> --
> Kenneth Clark
> Programmer/Analyst
>
> Rabid Dog Laboratories ™
> Putting the art back into development
>
> *tel:* +27 11 475 7409
> *mobile:* +27 82 500 5090
> *e-mail:* kenneth_at_rabiddog.co.za
> *website:* http://www.rabiddog.co.za/