Eclipse RCP and Hibernate, problem creating proxy objects

Pi · **Joined:** Thu Jun 29, 2006 12:36 pm **Posts:** 20

Hello,

I'm currently developing an Eclipse RCP application that uses Hibernate for persistence.

In short:
Hibernate has a problem with creating the proxys for my model. (See detailed Hibernate Log futher down)

Code:

2006-09-29 12:36:37,800 ERROR [main] CGLIBLazyInitializer line 130: CGLIB Enhancement failed: com.xx.zoorender.model.TaskElement
net.sf.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
Caused by: net.sf.cglib.core.CodeGenerationException: 
java.lang.reflect.InvocationTargetException-->null
Caused by: java.lang.reflect.InvocationTargetException
Caused by: java.lang.NoClassDefFoundError: org/hibernate/proxy/HibernateProxy

The strange thing is, that most of the application works regardless these errors. That are just some queries that don't work, e.g. initialization of a mapped collection. The
example I post here is the mapping of a table

Quote:

tasktype

and a table

Quote:

tasktype_parameter

. You can find the mapping files (hbm.xml) and the source code of the two classes of the model.

My plugin structure is that I have seperate plugin projects for my main application, for my model, for the mysql driver and for the hibernate libraries. I use buddy classloading so that every plugin can see the ones it needs. Unfortunately this doesn't work completely.

If I create just a regular Java class with a main method in a new project that references the other plugin projects in my workspace, I get no error messages and everything works fine. I can execute every query.

I hope that somebody can give me a hint where I could find the bug in my code., I'm turning in circles and don't know where I could look to find it. I tried the latest version of Hibernate, but with the latest version, Hibernate doesn't work at all due to this issue.

Hibernate version: 3.1 and 3.2

RCP Plugin Manifest documents:
My main Manifest:

Code:

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: ZooRender Manager Plug-in
Bundle-SymbolicName: com.xx.zoorender.manager; singleton:=true
Bundle-Version: 1.0.0
Bundle-Activator: com.xx.zoorender.manager.Activator
Bundle-Vendor: XX
Bundle-Localization: plugin
Require-Bundle: org.eclipse.ui,
 org.eclipse.core.runtime,
 com.xx.zoorender.model,
 org.hibernate.eclipse,
 org.eclipse.ui.forms
Eclipse-LazyStart: true
Eclipse-RegisterBuddy: org.hibernate.eclipse

Manifest of the model:

Code:

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Model Plug-in
Bundle-SymbolicName: com.xx.zoorender.model
Bundle-Version: 1.0.0
Bundle-Vendor: XX
Bundle-Localization: plugin
Export-Package: com.xx.zoorender.model

Manifest of my JDBC Driver:

Code:

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: MySQL Plug-in
Bundle-SymbolicName: com.mysql.eclipse
Bundle-Version: 3.1
Bundle-ClassPath: .
Bundle-Vendor: MySQL
Bundle-Localization: plugin
Export-Package: com.mysql.jdbc,
 com.mysql.jdbc.configs,
 com.mysql.jdbc.integration.c3p0,
 com.mysql.jdbc.integration.jboss,
 com.mysql.jdbc.jdbc2.optional,
 com.mysql.jdbc.log,
 com.mysql.jdbc.profiler,
 com.mysql.jdbc.util,
 org.gjt.mm.mysql

Manifest of the hibernate plugin:

Code:

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Eclipse Plug-in
Bundle-SymbolicName: org.hibernate.eclipse
Bundle-Version: 3.1
Bundle-ClassPath: hibernate3.jar,
 ant-1.6.5.jar,
 ant-antlr-1.6.5.jar,
 ant-junit-1.6.5.jar,
 ant-launcher-1.6.5.jar,
 antlr-2.7.6rc1.jar,
 ant-swing-1.6.5.jar,
 asm.jar,
 asm-attrs.jar,
 c3p0-0.9.0.jar,
 cglib-2.1.3.jar,
 cleanimports.jar,
 commons-collections-2.1.1.jar,
 commons-logging-1.0.4.jar,
 concurrent-1.3.2.jar,
 connector.jar,
 dom4j-1.6.1.jar,
 ehcache-1.1.jar,
 jaas.jar,
 jacc-1_0-fr.jar,
 jaxen-1.1-beta-7.jar,
 jboss-cache.jar,
 jboss-common.jar,
 jboss-jmx.jar,
 jboss-system.jar,
 jdbc2_0-stdext.jar,
 jgroups-2.2.8.jar,
 jta.jar,
 junit-3.8.1.jar,
 log4j-1.2.11.jar,
 oscache-2.1.jar,
 proxool-0.8.3.jar,
 swarmcache-1.0rc2.jar,
 syndiag2.jar,
 versioncheck.jar,
 xerces-2.6.2.jar,
 xml-apis.jar
Bundle-Localization: plugin
Export-Package: .,
 EDU.oswego.cs.dl.util.concurrent,
 antlr,
 antlr.ASdebug,
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 antlr.actions.csharp,
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 antlr.preprocessor,
 com.mchange,
 com.mchange.lang,
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 com.mchange.v1,
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 com.mchange.v2.c3p0.subst,
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 com.mchange.v2.cfg,
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 com.mchange.v2.codegen,
 com.mchange.v2.codegen.bean,
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 com.mchange.v2.holders,
 com.mchange.v2.lang,
 com.mchange.v2.log,
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 com.mchange.v2.log.log4j,
 com.mchange.v2.naming,
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 com.mchange.v2.ser,
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 com.opensymphony.oscache.base.algorithm,
 com.opensymphony.oscache.base.events,
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 com.opensymphony.oscache.extra,
 com.opensymphony.oscache.general,
 com.opensymphony.oscache.plugins.clustersupport,
 com.opensymphony.oscache.plugins.diskpersistence,
 com.opensymphony.oscache.util,
 com.opensymphony.oscache.web,
 com.opensymphony.oscache.web.filter,
 com.opensymphony.oscache.web.tag,
 com.sun.security.auth,
 com.sun.security.auth.login,
 com.tombrus.cleanImports.ant,
 com.tombrus.cleanImports.engine,
 com.tombrus.cleanImports.model,
 com.tombrus.cleanImports.parser,
 com.tombrus.cleanImports.parser.compiler140,
 com.tombrus.cleanImports.parser.compiler141,
 com.tombrus.cleanImports.parser.test,
 com.tombrus.javaParser,
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 javax.management.loading,
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 javax.management.openmbean,
 javax.management.relation,
 javax.management.timer,
 javax.resource,
 javax.resource.cci,
 javax.resource.spi,
 javax.resource.spi.security,
 javax.security.auth,
 javax.security.auth.callback,
 javax.security.auth.login,
 javax.security.auth.spi,
 javax.security.jacc,
 javax.sql,
 javax.transaction,
 javax.transaction.xa,
 javax.xml.parsers,
 javax.xml.transform,
 javax.xml.transform.dom,
 javax.xml.transform.sax,
 javax.xml.transform.stream,
 junit.awtui,
 junit.extensions,
 junit.framework,
 junit.runner,
 junit.swingui,
 junit.swingui.icons,
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 license,
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 net.sf.cglib.transform.impl,
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 net.sf.ehcache.hibernate,
 net.sf.ehcache.store,
 net.sf.swarmcache,
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 org.apache.log4j.lf5.config,
 org.apache.log4j.lf5.util,
 org.apache.log4j.lf5.viewer,
 org.apache.log4j.lf5.viewer.categoryexplorer,
 org.apache.log4j.lf5.viewer.configure,
 org.apache.log4j.lf5.viewer.images,
 org.apache.log4j.net,
 org.apache.log4j.nt,
 org.apache.log4j.or,
 org.apache.log4j.or.jms,
 org.apache.log4j.or.sax,
 org.apache.log4j.spi,
 org.apache.log4j.varia,
 org.apache.log4j.xml,
 org.apache.tools.ant,
 org.apache.tools.ant.filters,
 org.apache.tools.ant.filters.util,
 org.apache.tools.ant.helper,
 org.apache.tools.ant.input,
 org.apache.tools.ant.launch,
 org.apache.tools.ant.listener,
 org.apache.tools.ant.loader,
 org.apache.tools.ant.taskdefs,
 org.apache.tools.ant.taskdefs.compilers,
 org.apache.tools.ant.taskdefs.condition,
 org.apache.tools.ant.taskdefs.cvslib,
 org.apache.tools.ant.taskdefs.email,
 org.apache.tools.ant.taskdefs.optional,
 org.apache.tools.ant.taskdefs.optional.junit,
 org.apache.tools.ant.taskdefs.optional.junit.xsl,
 org.apache.tools.ant.taskdefs.optional.splash,
 org.apache.tools.ant.taskdefs.rmic,
 org.apache.tools.ant.types,
 org.apache.tools.ant.types.mappers,
 org.apache.tools.ant.types.resolver,
 org.apache.tools.ant.types.selectors,
 org.apache.tools.ant.types.selectors.modifiedselector,
 org.apache.tools.ant.util,
 org.apache.tools.ant.util.facade,
 org.apache.tools.ant.util.regexp,
 org.apache.tools.bzip2,
 org.apache.tools.mail,
 org.apache.tools.tar,
 org.apache.tools.zip,
 org.apache.wml,
 org.apache.wml.dom,
 org.apache.xerces.dom,
 org.apache.xerces.dom.events,
 org.apache.xerces.dom3,
 org.apache.xerces.dom3.as,
 org.apache.xerces.dom3.bootstrap,
 org.apache.xerces.impl,
 org.apache.xerces.impl.dtd,
 org.apache.xerces.impl.dtd.models,
 org.apache.xerces.impl.dv,
 org.apache.xerces.impl.dv.dtd,
 org.apache.xerces.impl.dv.util,
 org.apache.xerces.impl.dv.xs,
 org.apache.xerces.impl.io,
 org.apache.xerces.impl.msg,
 org.apache.xerces.impl.validation,
 org.apache.xerces.impl.xpath,
 org.apache.xerces.impl.xpath.regex,
 org.apache.xerces.impl.xs,
 org.apache.xerces.impl.xs.identity,
 org.apache.xerces.impl.xs.models,
 org.apache.xerces.impl.xs.opti,
 org.apache.xerces.impl.xs.traversers,
 org.apache.xerces.impl.xs.util,
 org.apache.xerces.jaxp,
 org.apache.xerces.parsers,
 org.apache.xerces.util,
 org.apache.xerces.xinclude,
 org.apache.xerces.xni,
 org.apache.xerces.xni.grammars,
 org.apache.xerces.xni.parser,
 org.apache.xerces.xs,
 org.apache.xml.serialize,
 org.apache.xmlcommons,
 org.dom4j,
 org.dom4j.bean,
 org.dom4j.datatype,
 org.dom4j.dom,
 org.dom4j.dtd,
 org.dom4j.io,
 org.dom4j.jaxb,
 org.dom4j.rule,
 org.dom4j.rule.pattern,
 org.dom4j.swing,
 org.dom4j.tree,
 org.dom4j.util,
 org.dom4j.xpath,
 org.dom4j.xpp,
 org.hibernate,
 org.hibernate.action,
 org.hibernate.cache,
 org.hibernate.cache.entry,
 org.hibernate.cfg,
 org.hibernate.classic,
 org.hibernate.collection,
 org.hibernate.connection,
 org.hibernate.context,
 org.hibernate.criterion,
 org.hibernate.dialect,
 org.hibernate.dialect.function,
 org.hibernate.engine,
 org.hibernate.engine.query,
 org.hibernate.engine.transaction,
 org.hibernate.event,
 org.hibernate.event.def,
 org.hibernate.exception,
 org.hibernate.hql,
 org.hibernate.hql.antlr,
 org.hibernate.hql.ast,
 org.hibernate.hql.ast.exec,
 org.hibernate.hql.ast.tree,
 org.hibernate.hql.ast.util,
 org.hibernate.hql.classic,
 org.hibernate.id,
 org.hibernate.impl,
 org.hibernate.intercept,
 org.hibernate.jdbc,
 org.hibernate.jmx,
 org.hibernate.loader,
 org.hibernate.loader.collection,
 org.hibernate.loader.criteria,
 org.hibernate.loader.custom,
 org.hibernate.loader.entity,
 org.hibernate.loader.hql,
 org.hibernate.lob,
 org.hibernate.mapping,
 org.hibernate.metadata,
 org.hibernate.param,
 org.hibernate.persister,
 org.hibernate.persister.collection,
 org.hibernate.persister.entity,
 org.hibernate.pretty,
 org.hibernate.property,
 org.hibernate.proxy,
 org.hibernate.secure,
 org.hibernate.sql,
 org.hibernate.stat,
 org.hibernate.tool.hbm2ddl,
 org.hibernate.tool.instrument,
 org.hibernate.transaction,
 org.hibernate.transform,
 org.hibernate.tuple,
 org.hibernate.type,
 org.hibernate.usertype,
 org.hibernate.util,
 org.jaxen,
 org.jaxen.dom,
 org.jaxen.dom4j,
 org.jaxen.expr,
 org.jaxen.expr.iter,
 org.jaxen.function,
 org.jaxen.function.ext,
 org.jaxen.function.xslt,
 org.jaxen.javabean,
 org.jaxen.jdom,
 org.jaxen.pattern,
 org.jaxen.saxpath,
 org.jaxen.saxpath.base,
 org.jaxen.saxpath.helpers,
 org.jaxen.util,
 org.jaxen.xom,
 org.jboss,
 org.jboss.cache,
 org.jboss.cache.aop,
 org.jboss.cache.eviction,
 org.jboss.cache.interceptors,
 org.jboss.cache.loader,
 org.jboss.cache.loader.bdbje,
 org.jboss.cache.loader.rmi,
 org.jboss.cache.lock,
 org.jboss.cache.tests,
 org.jboss.cache.transaction,
 org.jboss.deployment,
 org.jboss.deployment.cache,
 org.jboss.deployment.scanner,
 org.jboss.logging,
 org.jboss.logging.appender,
 org.jboss.logging.filter,
 org.jboss.logging.layout,
 org.jboss.logging.util,
 org.jboss.mx.capability,
 org.jboss.mx.interceptor,
 org.jboss.mx.loading,
 org.jboss.mx.metadata,
 org.jboss.mx.modelmbean,
 org.jboss.mx.notification,
 org.jboss.mx.persistence,
 org.jboss.mx.server,
 org.jboss.mx.server.registry,
 org.jboss.mx.service,
 org.jboss.mx.util,
 org.jboss.mx.util.propertyeditor,
 org.jboss.net.protocol,
 org.jboss.net.protocol.file,
 org.jboss.net.protocol.http,
 org.jboss.net.protocol.njar,
 org.jboss.net.protocol.resource,
 org.jboss.net.sockets,
 org.jboss.net.ssl,
 org.jboss.system,
 org.jboss.system.pm,
 org.jboss.system.server,
 org.jboss.util,
 org.jboss.util.coerce,
 org.jboss.util.collection,
 org.jboss.util.deadlock,
 org.jboss.util.file,
 org.jboss.util.id,
 org.jboss.util.loading,
 org.jboss.util.platform,
 org.jboss.util.property,
 org.jboss.util.property.jmx,
 org.jboss.util.propertyeditor,
 org.jboss.util.state,
 org.jboss.util.state.xml,
 org.jboss.util.stream,
 org.jboss.util.threadpool,
 org.jboss.util.timeout,
 org.jboss.util.xml,
 org.jboss.xml,
 org.jboss.xml.binding,
 org.jboss.xml.binding.metadata,
 org.jboss.xml.binding.metadata.marshalling,
 org.jboss.xml.binding.metadata.unmarshalling,
 org.jboss.xml.binding.metadata.unmarshalling.impl,
 org.jboss.xml.binding.parser,
 org.jboss.xml.binding.parser.sax,
 org.jboss.xml.binding.parser.xni,
 org.jgroups,
 org.jgroups.blocks,
 org.jgroups.conf,
 org.jgroups.debug,
 org.jgroups.demos,
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 org.jgroups.demos.wb,
 org.jgroups.persistence,
 org.jgroups.protocols,
 org.jgroups.protocols.pbcast,
 org.jgroups.protocols.ring,
 org.jgroups.service,
 org.jgroups.service.lease,
 org.jgroups.stack,
 org.jgroups.tests,
 org.jgroups.tests.adapt,
 org.jgroups.tests.adaptjms,
 org.jgroups.tests.adapttcp,
 org.jgroups.tests.adaptudp,
 org.jgroups.tests.perf,
 org.jgroups.tests.perf.transports,
 org.jgroups.tests.stack,
 org.jgroups.util,
 org.logicalcobwebs.asm,
 org.logicalcobwebs.asm.tree,
 org.logicalcobwebs.asm.util,
 org.logicalcobwebs.cglib.core,
 org.logicalcobwebs.cglib.proxy,
 org.logicalcobwebs.cglib.reflect,
 org.logicalcobwebs.cglib.util,
 org.logicalcobwebs.concurrent,
 org.logicalcobwebs.logging,
 org.logicalcobwebs.logging.impl,
 org.logicalcobwebs.proxool,
 org.logicalcobwebs.proxool.admin,
 org.logicalcobwebs.proxool.admin.jmx,
 org.logicalcobwebs.proxool.admin.servlet,
 org.logicalcobwebs.proxool.configuration,
 org.logicalcobwebs.proxool.resources,
 org.logicalcobwebs.proxool.util,
 org.objectweb.asm,
 org.objectweb.asm.attrs,
 org.w3c.dom,
 org.w3c.dom.css,
 org.w3c.dom.events,
 org.w3c.dom.html,
 org.w3c.dom.ls,
 org.w3c.dom.ranges,
 org.w3c.dom.stylesheets,
 org.w3c.dom.traversal,
 org.w3c.dom.views,
 org.xml.sax,
 org.xml.sax.ext,
 org.xml.sax.helpers,
 versioncheck
Eclipse-BuddyPolicy: registered
Require-Bundle: com.mysql.eclipse

Full stack trace of any exception that occurs:

Code:

java.lang.NullPointerException
   at org.hibernate.tuple.AbstractEntityTuplizer.createProxy(AbstractEntityTuplizer.java:372)
   at org.hibernate.persister.entity.AbstractEntityPersister.createProxy(AbstractEntityPersister.java:3121)
   at org.hibernate.event.def.DefaultLoadEventListener.createProxyIfNecessary(DefaultLoadEventListener.java:232)
   at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:173)
   at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:87)
   at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:862)
   at org.hibernate.impl.SessionImpl.internalLoad(SessionImpl.java:830)
   at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:266)
   at org.hibernate.type.EntityType.resolve(EntityType.java:303)
   at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:116)
   at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842)
   at org.hibernate.loader.Loader.doQuery(Loader.java:717)
   at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
   at org.hibernate.loader.Loader.doList(Loader.java:2145)
   at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
   at org.hibernate.loader.Loader.list(Loader.java:2024)
   at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:375)
   at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:308)
   at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:153)
   at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1106)
   at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
   at com.xx.zoorender.manager.views.SubmissionPanelView$ComboSelectionChangedListener.selectionChanged(SubmissionPanelView.java:183)
   at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:162)
   at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
   at org.eclipse.core.runtime.Platform.run(Platform.java:843)
   at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44)
   at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:149)
   at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:160)
   at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:1976)
   at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1128)
   at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1154)
   at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:213)
   at org.eclipse.jface.util.OpenStrategy.access$3(OpenStrategy.java:207)
   at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:374)
   at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
   at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1085)
   at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3164)
   at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2840)
   at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1914)
   at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1878)
   at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:419)
   at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
   at com.xx.zoorender.manager.Application.run(Application.java:18)
   at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
   at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
   at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
   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 org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
   at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
   at org.eclipse.core.launcher.Main.run(Main.java:977)
   at org.eclipse.core.launcher.Main.main(Main.java:952)

Name and version of the database: MySQL 5.0.18

Debug level Hibernate log excerpt:

Code:

2006-09-29 11:26:54,943 INFO  [main] SessionFactoryImpl: building session factory
2006-09-29 11:26:54,964 WARN  [main] Configurator: No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: bundleresource://21/ehcache-failsafe.xml
2006-09-29 11:26:55,445 ERROR [main] CGLIBLazyInitializer: CGLIB Enhancement failed: com.xx.zoorender.model.TasktypeErrorstring
net.sf.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
   at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:237)
   at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
   at net.sf.cglib.proxy.Enhancer.createClass(Enhancer.java:317)
   at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:126)
   at org.hibernate.proxy.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:41)
   at org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:161)
   at org.hibernate.tuple.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:131)
   at org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55)
   at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
   at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:257)
   at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:412)
   at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:108)
   at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
   at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:216)
   at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1176)
   at test.rcpviewtemplate.HibernateUtil.<clinit>(HibernateUtil.java:33)
   at test.rcpviewtemplate.View.createPartControl(View.java:71)
   at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:332)
   at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:197)
   at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:566)
   at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:290)
   at org.eclipse.ui.internal.ViewPane.setVisible(ViewPane.java:525)
   at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:140)
   at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:268)
   at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
   at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:394)
   at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1144)
   at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1097)
   at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1311)
   at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:601)
   at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:532)
   at org.eclipse.ui.internal.PartSashContainer.createControl(PartSashContainer.java:562)
   at org.eclipse.ui.internal.PerspectiveHelper.activate(PerspectiveHelper.java:244)
   at org.eclipse.ui.internal.Perspective.onActivate(Perspective.java:815)
   at org.eclipse.ui.internal.WorkbenchPage.onActivate(WorkbenchPage.java:2429)
   at org.eclipse.ui.internal.WorkbenchWindow$6.run(WorkbenchWindow.java:2616)
   at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
   at org.eclipse.ui.internal.WorkbenchWindow.setActivePage(WorkbenchWindow.java:2597)
   at org.eclipse.ui.internal.WorkbenchWindow.busyOpenPage(WorkbenchWindow.java:658)
   at org.eclipse.ui.internal.Workbench.busyOpenWorkbenchWindow(Workbench.java:795)
   at org.eclipse.ui.internal.Workbench.doOpenFirstTimeWindow(Workbench.java:1437)
   at org.eclipse.ui.internal.Workbench.openFirstTimeWindow(Workbench.java:1388)
   at org.eclipse.ui.internal.WorkbenchConfigurer.openFirstTimeWindow(WorkbenchConfigurer.java:190)
   at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:708)
   at org.eclipse.ui.internal.Workbench.init(Workbench.java:1085)
   at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1847)
   at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:419)
   at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
   at test.rcpviewtemplate.Application.run(Application.java:18)
   at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
   at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
   at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
   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 org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
   at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
   at org.eclipse.core.launcher.Main.run(Main.java:977)
   at org.eclipse.core.launcher.Main.main(Main.java:952)
Caused by: java.lang.reflect.InvocationTargetException
   at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at net.sf.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:384)
   at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:219)
   ... 61 more
Caused by: java.lang.NoClassDefFoundError: org/hibernate/proxy/HibernateProxy
   at java.lang.ClassLoader.defineClass1(Native Method)
   at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
   ... 66 more
2006-09-29 11:26:55,453 WARN  [main] PojoEntityTuplizer: could not create proxy factory for:com.xx.zoorender.model.TasktypeErrorstring
org.hibernate.HibernateException: CGLIB Enhancement failed: com.xx.zoorender.model.TasktypeErrorstring
   at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:132)
   at org.hibernate.proxy.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:41)
   at org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:161)
   at org.hibernate.tuple.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:131)
   at org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55)
   at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
   at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:257)
   at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:412)
   at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:108)
   at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
   at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:216)
   at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1176)
   at test.rcpviewtemplate.HibernateUtil.<clinit>(HibernateUtil.java:33)
   at test.rcpviewtemplate.View.createPartControl(View.java:71)
   at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:332)
   at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:197)
   at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:566)
   at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:290)
   at org.eclipse.ui.internal.ViewPane.setVisible(ViewPane.java:525)
   at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:140)
   at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:268)
   at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
   at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:394)
   at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1144)
   at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1097)
   at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1311)
   at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:601)
   at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:532)
   at org.eclipse.ui.internal.PartSashContainer.createControl(PartSashContainer.java:562)
   at org.eclipse.ui.internal.PerspectiveHelper.activate(PerspectiveHelper.java:244)
   at org.eclipse.ui.internal.Perspective.onActivate(Perspective.java:815)
   at org.eclipse.ui.internal.WorkbenchPage.onActivate(WorkbenchPage.java:2429)
   at org.eclipse.ui.internal.WorkbenchWindow$6.run(WorkbenchWindow.java:2616)
   at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
   at org.eclipse.ui.internal.WorkbenchWindow.setActivePage(WorkbenchWindow.java:2597)
   at org.eclipse.ui.internal.WorkbenchWindow.busyOpenPage(WorkbenchWindow.java:658)
   at org.eclipse.ui.internal.Workbench.busyOpenWorkbenchWindow(Workbench.java:795)
   at org.eclipse.ui.internal.Workbench.doOpenFirstTimeWindow(Workbench.java:1437)
   at org.eclipse.ui.internal.Workbench.openFirstTimeWindow(Workbench.java:1388)
   at org.eclipse.ui.internal.WorkbenchConfigurer.openFirstTimeWindow(WorkbenchConfigurer.java:190)
   at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:708)
   at org.eclipse.ui.internal.Workbench.init(Workbench.java:1085)
   at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1847)
   at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:419)
   at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
   at test.rcpviewtemplate.Application.run(Application.java:18)
   at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
   at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
   at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
   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 org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
   at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
   at org.eclipse.core.launcher.Main.run(Main.java:977)
   at org.eclipse.core.launcher.Main.main(Main.java:952)
Caused by: net.sf.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
   at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:237)
   at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
   at net.sf.cglib.proxy.Enhancer.createClass(Enhancer.java:317)
   at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:126)
   ... 58 more
Caused by: java.lang.reflect.InvocationTargetException
   at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at net.sf.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:384)
   at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:219)
   ... 61 more
Caused by: java.lang.NoClassDefFoundError: org/hibernate/proxy/HibernateProxy
   at java.lang.ClassLoader.defineClass1(Native Method)
   at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
   ... 66 more

Hibernate Mapping files:
For the Tasktype class:

Code:

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 10-Aug-2006 2:18:43 PM by Hibernate Tools 3.2.0.beta6a -->
<hibernate-mapping>
    <class name="com.xx.zoorender.model.Tasktype" table="tasktype" catalog="zoorender_test01">
        <comment></comment>
        <id name="idtasktype" type="long" unsaved-value="0">
            <column name="idtasktype" />
            <generator class="native" />
        </id>
        <property name="tasktypename" type="string">
            <column name="tasktypename" length="45">
            </column>
        </property>
        <set name="tasktypeParameters" inverse="true" cascade="all-delete-orphan" lazy="true">
            <key>
                <column name="tasktype_idtasktype" not-null="true">
                </column>
            </key>
            <one-to-many class="com.xx.zoorender.model.TasktypeParameter" />
        </set>
    </class>
</hibernate-mapping>

For the TasktypeParameter class

Code:

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 21-Aug-2006 12:51:41 PM by Hibernate Tools 3.2.0.beta6a -->
<hibernate-mapping>
    <class name="com.xx.zoorender.model.TasktypeParameter" table="tasktype_parameter" catalog="zoorender_test01">
        <comment></comment>
        <id name="idtasktypeParameter" type="long">
            <column name="idtasktype_parameter" />
            <generator class="native" />
        </id>
        <many-to-one name="tasktype" class="com.xx.zoorender.model.Tasktype" fetch="select">
            <column name="tasktype_idtasktype" not-null="true">
                <comment></comment>
            </column>
        </many-to-one>
        </property>
        <property name="argumenttag" type="string">
            <column name="argumenttag">
                <comment></comment>
            </column>
        </property>
        <property name="orderincommand" type="java.lang.Integer">
            <column name="orderincommand">
                <comment></comment>
            </column>
        </property>
    </class>
</hibernate-mapping>

Java classes:
Tasktype class:

Code:

package com.xx.zoorender.model;

// Generated 10-Aug-2006 2:18:42 PM by Hibernate Tools 3.2.0.beta6a

import java.util.HashSet;
import java.util.Set;
/**
 * Tasktype generated by hbm2java
 */
public class Tasktype implements java.io.Serializable {

   // Fields    

   private long idtasktype;

   private String tasktypename;
   
   private Set<TasktypeParameter> tasktypeParameters = new HashSet<TasktypeParameter>(0);
   
   // Constructors

   /** default constructor */
   public Tasktype() {
   }
   
   // Property accessors
   ...
}

TasktypeParameter class:

Code:

package com.xx.zoorender.model;

// Generated 21-Aug-2006 12:51:41 PM by Hibernate Tools 3.2.0.beta6a

/**
 * TasktypeParameter generated by hbm2java
 */
public class TasktypeParameter implements java.io.Serializable {

   // Fields    

   private long idtasktypeParameter;

   private Tasktype tasktype;

   private String argumenttag;

   private Integer orderincommand;

   // Constructors

   /** default constructor */
   public TasktypeParameter() {
   }

   // Property accessors
   ...
}

Quote:

Thank you in advance for all suggestions.

max · **Posted:** Sat Sep 30, 2006 2:55 am

read up on eclipse classloading and especially buddy classloading

Pi · **Joined:** Thu Jun 29, 2006 12:36 pm **Posts:** 20

Thank you for your reply.

So you think it's only a problem with my buddy classloading. OK, I thought I have done everything right, but I will try to find more information about that subject and post my results here.

If you find the time and have experience with RCP developement, perhaps you can take a quick look on my manifest files if there is something that pops in your eyes that can't work.

Thanks
Peter

Pi · **Joined:** Thu Jun 29, 2006 12:36 pm **Posts:** 20

Thank you very much!

The problem were the Manifest Files of my Plugins. My data modell needed a dependency to the hibernate plugin and register it as a buddy.

After reading this articel
http://www.eclipsezone.com/articles/eclipse-vms/

and this extract of a German book about RCP developement that covers also the integration of Hibernate:
http://www.dpunkt.de/leseproben/3-89864-353-0/Kapitel_14.pdf
Nice that exactly this chapter is a sample :-)

My new Manifest Files look now like this:

RCP Plugin Manifest documents:
My main Manifest:

Code:

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: ZooRender Manager Plug-in
Bundle-SymbolicName: com.xx.zoorender.manager; singleton:=true
Bundle-Version: 1.0.0
Bundle-Activator: com.xx.zoorender.manager.Activator
Bundle-Vendor: XX
Bundle-Localization: plugin
Require-Bundle: org.eclipse.ui,
 org.eclipse.core.runtime,
 com.xx.zoorender.model,
 org.hibernate.eclipse,
 org.eclipse.ui.forms
Eclipse-LazyStart: true
Eclipse-RegisterBuddy: org.hibernate.eclipse

Manifest of the model:

Quote:

The last two lines were added!

Code:

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Model Plug-in
Bundle-SymbolicName: com.xx.zoorender.model
Bundle-Version: 1.0.0
Bundle-Vendor: XX
Bundle-Localization: plugin
Export-Package: com.xx.zoorender.model
Eclipse-RegisterBuddy: org.hibernate.eclipse
Require-Bundle: org.hibernate.eclipse

Manifest of my JDBC Driver:

Code:

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: MySQL Plug-in
Bundle-SymbolicName: com.mysql.eclipse
Bundle-Version: 3.1
Bundle-ClassPath: .
Bundle-Vendor: MySQL
Bundle-Localization: plugin
Export-Package: com.mysql.jdbc,
 com.mysql.jdbc.configs,
 com.mysql.jdbc.integration.c3p0,
 com.mysql.jdbc.integration.jboss,
 com.mysql.jdbc.jdbc2.optional,
 com.mysql.jdbc.log,
 com.mysql.jdbc.profiler,
 com.mysql.jdbc.util,
 org.gjt.mm.mysql

Manifest of the hibernate plugin:

Code:

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Eclipse Plug-in
Bundle-SymbolicName: org.hibernate.eclipse
Bundle-Version: 3.1
Bundle-ClassPath: hibernate3.jar,
 ant-1.6.5.jar,
 ant-antlr-1.6.5.jar,
 ant-junit-1.6.5.jar,
 ant-launcher-1.6.5.jar,
 ...,
 ...,
 syndiag2.jar,
 versioncheck.jar,
 xerces-2.6.2.jar,
 xml-apis.jar
Bundle-Localization: plugin
Export-Package: .,
 EDU.oswego.cs.dl.util.concurrent,
 antlr,
 antlr.ASdebug,
 ...,
 com.mchange.v2.lang,
 com.mchange.v2.log,
 com.mchange.v2.log.jdk14logging,
 ...,
 org.dom4j,
 ...,
 org.hibernate,
 ...,
 org.xml.sax.ext,
 org.xml.sax.helpers,
 versioncheck
Eclipse-BuddyPolicy: registered
Require-Bundle: com.mysql.eclipse 

max · **Posted:** Mon Oct 02, 2006 6:54 pm

p.s. you should filter out your dependencies to no include non-hibnerate stuff (like syndiag etc.)

Pi · **Joined:** Thu Jun 29, 2006 12:36 pm **Posts:** 20

Thanks for the reply. You are right I should remove some dependencies, would make the plugin a little bit lighter. Only I don't know what I can remove and what has to stay(like e.g. log4j). Are there articles or documentation that explain what can be removed?

Peter

max · **Posted:** Wed Oct 04, 2006 11:38 am

read lib/version.properties and lib/readme.txt to know.

Pi · **Joined:** Thu Jun 29, 2006 12:36 pm **Posts:** 20

That's a good starting point, thanks.

Peter

jmaurin · **Joined:** Mon Nov 06, 2006 5:45 am **Posts:** 5

Hi,

i've the same problem with Eclipse RCP and Hibernate...And the problem was a Many-to-one association with lazy initialisation (because by default, lazy loading with proxies is used in Hibernate 3: http://www.hibernate.org/116.html#A5).

Then i've setting all Many-to-one association to lazy="false" and then all work.

max · **Posted:** Mon Dec 18, 2006 12:18 pm

..but that is definitly not a good general solution since it will hurt your performance.

dnoyeb · **Joined:** Sat Dec 16, 2006 1:52 pm **Posts:** 40

jmaurin wrote:

Hi,

i've the same problem with Eclipse RCP and Hibernate...And the problem was a Many-to-one association with lazy initialisation (because by default, lazy loading with proxies is used in Hibernate 3: http://www.hibernate.org/116.html#A5).

Then i've setting all Many-to-one association to lazy="false" and then all work.

Thanks a lot for that tip. That also fixed my problem. And in my case I do not want proxy here anyway. At least I know where to focus my coding efforts. I dont much like eclipse buddy loading. I don't like things working behind the scenes like that.

Anyway, thanks.