[opencms-dev] Antwort: Re: Antwort: Re: Update OpenCMS 10.5 to 11.0.1 - NoClassDefFoundError

martin.rosenthal at oerag.de martin.rosenthal at oerag.de
Fri Jul 17 12:16:13 CEST 2020


Hello Michael and Stefan,

thank you for your help. I found the reason for the error. We are using a
custom OpenCMS module which contains als class for creating
EntityManagerFactory for the Application. This calls will be loaded by an
annotation @WebListener.

@WebListener
public class EMF implements ServletContextListener {

  private static EntityManagerFactory emf;

  @Override
  public void contextInitialized(ServletContextEvent event) {
      emf = Persistence.createEntityManagerFactory("xxxxxx");
      ServiceFactory.initializeServiceFactory(emf);

  }

  @Override
  public void contextDestroyed(ServletContextEvent event) {
      if (emf != null) {
          emf.close();
      }
  }

  public static EntityManager createEntityManager() {
      if (emf == null) {
          throw new IllegalStateException("Context is not initialized yet."
);
      }

      return emf.createEntityManager();
  }

  public static EntityManagerFactory getEntityManagerFactory() {
      return emf;
  }

As persistence provide we are using
org.apache.openjpa.persistence.PersistenceProviderImpl in the
persistence.xml file. The db2 driver deliverd by OpenCMS works fine. The
only problem is to get the above shown class working on startup. I've
copied the openjpa-2.4.0.jar in the lib directory but it has no effect. I
get the same error. I think i must write a new class  for creating
EntityManagerFactory .

Regards,
Martin




Von:	Stephan Schrader <zstephanz at gmail.com>
An:	The OpenCms mailing list <opencms-dev at opencms.org>
Datum:	17.07.2020 10:32
Betreff:	Re: [opencms-dev] Antwort: Re: Update OpenCMS 10.5 to 11.0.1 -
            NoClassDefFoundError
Gesendet von:	opencms-dev-bounces at opencms.org



Hi Martin,

I would say, it depends. If you have custom classes referencing
javax.persistence.EntityManagerFactory then copy the missing JARs (OpenJPA
or Hibernate) to the WEB-INF/lib folder or update the dependency management
in your build tool. But this depends on your setup.

If you used the OpenCms JPA DB driver before, then you need to configure
the non JPA DB driver as Michael mentioned.

https://documentation.opencms.org/javadoc/core/org/opencms/db/db2/package-summary.html

Stephan

Am Fr., 17. Juli 2020 um 07:02 Uhr schrieb <martin.rosenthal at oerag.de>:
      Hello Stephan,

      thanks for your reply. It's really strange. What can i / should use
      instead
      of JPA???

      Regards,
      Martin




      Von:    Stephan Schrader <zstephanz at gmail.com>
      An:     The OpenCms mailing list <opencms-dev at opencms.org>
      Datum:  16.07.2020 20:37
      Betreff:        Re: [opencms-dev] Update OpenCMS 10.5 to 11.0.1 -
                  NoClassDefFoundError
      Gesendet von:   opencms-dev-bounces at opencms.org



      Hi Martin,

      the JPA support has been removed with commit:
      https://github.com/alkacon/opencms-core/commit/375c6bf71f645a84d9121d84beb75c111bc5734a

      . Unfortunately I haven't found any reason.

      Stephan

      Am Do., 16. Juli 2020 um 12:15 Uhr schrieb <martin.rosenthal at oerag.de
      >:

            Hello,

            i'm trying to upgrade my local OpenCMS developer system from
      OpenCMS
            10.5
            to 11.0.1. It is actually running on Windows 10, Oracle Java 8
      in a
            Tomcat
            9.0.30. As database i'm using IBM DB2 v.10.5.0.9 .
            After copying the files from the upgrade package in my
      installation
            directory als described in the readme-file, OpenCMS isn't
      starting
            After a
            few seconds i get the error:


            SCHWERWIEGEND: Error deploying web application directory
            [D:\apache-tomcat-9.0.30\webapps\web]
            java.lang.IllegalStateException: Error starting child
                    at
      org.apache.catalina.core.ContainerBase.addChildInternal
            (ContainerBase.java:720)
                    at org.apache.catalina.core.ContainerBase.addChild
            (ContainerBase.java:690)
                    at org.apache.catalina.core.StandardHost.addChild
            (StandardHost.java:705)
                    at
      org.apache.catalina.startup.HostConfig.deployDirectory
            (HostConfig.java:1133)
                    at org.apache.catalina.startup.HostConfig
      $DeployDirectory.run
            (HostConfig.java:1867)
                    at java.util.concurrent.Executors$RunnableAdapter.call
            (Executors.java:511)
                    at java.util.concurrent.FutureTask.run
      (FutureTask.java:266)
                    at
            org.apache.tomcat.util.threads.InlineExecutorService.execute
            (InlineExecutorService.java:75)
                    at java.util.concurrent.AbstractExecutorService.submit
            (AbstractExecutorService.java:112)
                    at
      org.apache.catalina.startup.HostConfig.deployDirectories
            (HostConfig.java:1045)
                    at org.apache.catalina.startup.HostConfig.deployApps
            (HostConfig.java:429)
                    at org.apache.catalina.startup.HostConfig.start
            (HostConfig.java:1576)
                    at
      org.apache.catalina.startup.HostConfig.lifecycleEvent
            (HostConfig.java:309)
                    at
      org.apache.catalina.util.LifecycleBase.fireLifecycleEvent
            (LifecycleBase.java:123)
                    at
      org.apache.catalina.util.LifecycleBase.setStateInternal
            (LifecycleBase.java:423)
                    at org.apache.catalina.util.LifecycleBase.setState
            (LifecycleBase.java:366)
                    at org.apache.catalina.core.ContainerBase.startInternal
            (ContainerBase.java:936)
                    at org.apache.catalina.core.StandardHost.startInternal
            (StandardHost.java:841)
                    at org.apache.catalina.util.LifecycleBase.start
            (LifecycleBase.java:183)
                    at org.apache.catalina.core.ContainerBase
      $StartChild.call
            (ContainerBase.java:1384)
                    at org.apache.catalina.core.ContainerBase
      $StartChild.call
            (ContainerBase.java:1374)
                    at java.util.concurrent.FutureTask.run
      (FutureTask.java:266)
                    at
            org.apache.tomcat.util.threads.InlineExecutorService.execute
            (InlineExecutorService.java:75)
                    at java.util.concurrent.AbstractExecutorService.submit
            (AbstractExecutorService.java:134)
                    at org.apache.catalina.core.ContainerBase.startInternal
            (ContainerBase.java:909)
                    at
      org.apache.catalina.core.StandardEngine.startInternal
            (StandardEngine.java:262)
                    at org.apache.catalina.util.LifecycleBase.start
            (LifecycleBase.java:183)
                    at
      org.apache.catalina.core.StandardService.startInternal
            (StandardService.java:421)
                    at org.apache.catalina.util.LifecycleBase.start
            (LifecycleBase.java:183)
                    at
      org.apache.catalina.core.StandardServer.startInternal
            (StandardServer.java:930)
                    at org.apache.catalina.util.LifecycleBase.start
            (LifecycleBase.java:183)
                    at org.apache.catalina.startup.Catalina.start
            (Catalina.java:633)
                    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
            Method)
                    at sun.reflect.NativeMethodAccessorImpl.invoke
            (NativeMethodAccessorImpl.java:62)
                    at sun.reflect.DelegatingMethodAccessorImpl.invoke
            (DelegatingMethodAccessorImpl.java:43)
                    at java.lang.reflect.Method.invoke(Method.java:498)
                    at org.apache.catalina.startup.Bootstrap.start
            (Bootstrap.java:343)
                    at org.apache.catalina.startup.Bootstrap.main
            (Bootstrap.java:474)
            Caused by: org.apache.catalina.LifecycleException: Failed to
      start
            component [StandardEngine[Catalina].StandardHost
            [localhost].StandardContext
            [/web]]
                    at
            org.apache.catalina.util.LifecycleBase.handleSubClassException
            (LifecycleBase.java:440)
                    at org.apache.catalina.util.LifecycleBase.start
            (LifecycleBase.java:198)
                    at
      org.apache.catalina.core.ContainerBase.addChildInternal
            (ContainerBase.java:717)
                    ... 37 more
            Caused by: java.lang.NoClassDefFoundError:
            Ljavax/persistence/EntityManagerFactory;
                    at java.lang.Class.getDeclaredFields0(Native Method)
                    at java.lang.Class.privateGetDeclaredFields
      (Class.java:2583)
                    at java.lang.Class.getDeclaredFields(Class.java:1916)
                    at
      org.apache.catalina.util.Introspection.getDeclaredFields
            (Introspection.java:110)
                    at

      org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation
            (WebAnnotationSet.java:269)
                    at

      org.apache.catalina.startup.WebAnnotationSet.loadApplicationListenerAnnotations


            (WebAnnotationSet.java:89)
                    at

      org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations


            (WebAnnotationSet.java:67)
                    at

      org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig


            (ContextConfig.java:330)
                    at
      org.apache.catalina.startup.ContextConfig.configureStart
            (ContextConfig.java:777)
                    at
      org.apache.catalina.startup.ContextConfig.lifecycleEvent
            (ContextConfig.java:301)
                    at
      org.apache.catalina.util.LifecycleBase.fireLifecycleEvent
            (LifecycleBase.java:123)
                    at
      org.apache.catalina.core.StandardContext.startInternal
            (StandardContext.java:5051)
                    at org.apache.catalina.util.LifecycleBase.start
            (LifecycleBase.java:183)
                    ... 38 more
            Caused by: java.lang.ClassNotFoundException:
            javax.persistence.EntityManagerFactory
                    at
      org.apache.catalina.loader.WebappClassLoaderBase.loadClass
            (WebappClassLoaderBase.java:1365)
                    at
      org.apache.catalina.loader.WebappClassLoaderBase.loadClass
            (WebappClassLoaderBase.java:1188)
                    ... 51 more

            Has anyone the same problem or an idea, what could be the
      reason?

            Thanks and regards,
            Martin Rosenthal

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