| NoClassDefFound: javax.persistence.criteria.CriteriaQuery [message #728084] |
Thu, 22 September 2011 10:04  |
Eclipse User |
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Hi all,
Not sure where else to look for this one. I'm hoping for some pointers as to where I should look next.
I'm getting java.lang.NoClassDefFoundError: javax.persistence.criteria.CriteriaQuery not found from bundle [web-demo.plan-1.0.0.SNAPSHOT-com.ea.nucleus.nextgen.webdemo.db]
at $Proxy173.<clinit>(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:588)
at org.springframework.orm.jpa.ExtendedEntityManagerCreator.createProxy(ExtendedEntityManagerCreator.java:264)
at org.springframework.orm.jpa.ExtendedEntityManagerCreator.createProxy(ExtendedEntityManagerCreator.java:229)
at org.springframework.orm.jpa.ExtendedEntityManagerCreator.createApplicationManagedEntityManager(ExtendedEntityManagerCreator.java:110)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.invokeProxyMethod(AbstractEntityManagerFactoryBean.java:426)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean$ManagedEntityManagerFactoryInvocationHandler.invoke(AbstractEntityManagerFactoryBean.java:485)
at $Proxy156.createEntityManager(Unknown Source)
...
Now, CriteriaQuery & co. came in JPA 2.0. This was added in Spring 3.0.3.RELEASE (see https://jira.springsource.org/browse/SPR-6636). Since Virgo 3.0 uses Spring 3.0.5.RELEASE, which is after 3.0.3.RELEASE, I'm good.
In my Virgo 3.0.x's repository/usr, I've got javax.persistence-2.0.0.jar (the OSGi bundle from groupId "org.eclipse.persistence" available from Maven Central at http://search.maven.org/remotecontent?filepath=org/eclipse/persistence/javax.persistence/2.0.0/javax.persistence-2.0.0.jar). The Virgo Admin app shows that everyone is binding properly to that bundle, including org.springframework.orm version 3.0.5.RELEASE:
The only thing suspicious that I've noticed is that there are two bundles active, 79 & 125. 79 is the one I expect from org.eclipse.virgo.region.user@file:/C:/vj/./repository/usr/javax.persistence-2.0.0.jar. 125 comes from org.eclipse.virgo.region.user@file:/C:/vj/work/org.eclipse.virgo.kernel.deployer_3.0.0.RELEASE/staging/global/bundle/javax.persistence/2.0.0.v200911271158/javax.persistence-2.0.0.jar/.
Since I'm no Virgo or Equinox expert, I didn't expect two copies of this bundle to be started. Can anyone explain whether & why I've got two JPA 2.0 bundles loaded?
Anyone have any ideas how I can get Spring ORM 3.0.5.RELEASE to see CriteriaQuery?
Thanks,
Matthew
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| Re: NoClassDefFound: javax.persistence.criteria.CriteriaQuery [message #728590 is a reply to message #728097] |
Fri, 23 September 2011 10:05  |
| Eclipse User |
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Glyn Normington wrote on Thu, 22 September 2011 10:23The bundle com.ea.nucleus.nextgen.webdemo.db does not appear to import the package javax.persistence.criteria, so it's not surprising that you get a NoClassDefFoundError.
How are you creating that bundle's manifest? Bundlor or bnd should have detected the usage of the class, but if you are constructing the manifest manually, you may have missed it.
I was using Apache Felix's maven-bundle-plugin (so, bnd). The bundle com.ea.nucleus.nextgen.webdemo.db doesn't use javax.persistence.criteria at all. However, that bundle does use DataNucleus, which in turn uses javax.persistence.criteria. I added Import-Bundle: javax.persistence
There's something about transitive dependencies that I don't understand, especially with a mix of Spring 3.0.x, DataNucleus 3.0.x, JPA 2.0.x. Since it appears as though the JPA 2.0.3 jar from groupId org.eclipse.persistence is a proper OSGi bundle, I took it straight from Maven Central without modification & dropped it in repository/usr. Since we are evaluating DataNucleus as an ORM (remember, it can persist to literally any kind of datasource, relational databases being just one), we decided to create a plan for DataNucleus's relational support, using JPA as our primary API (for portability given Hibernate, OpenJPA & EclipseLink are also being evaluated) and JDO for those areas where we needed more control (fetch plans & groups). I had to modify the POMs of DataNucleus (groupId org.datanucleus) artifacts datanucleus-core & datanucleus-rdbms to use maven-bundle-plugin, then I defined a plan for DataNucleus JPA & JDO RDBMS support like so:<?xml version="1.0" encoding="UTF-8"?>
<plan name="datanucleus-ea-infra" version="3.0.2.SNAPSHOT" scoped="false"
atomic="true" xmlns="http://www.eclipse.org/virgo/schema/plan"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.eclipse.org/virgo/schema/plan
http://www.eclipse.org/virgo/schema/plan/eclipse-virgo-plan.xsd">
<artifact type="bundle" name="javax.jdo" version="3.1.0" />
<artifact type="bundle" name="javax.persistence" version="2.0.0" />
<artifact type="bundle" name="org.datanucleus" version="3.0.2" />
<artifact type="bundle" name="org.datanucleus.api.jdo" version="3.0.2" />
<artifact type="bundle" name="org.datanucleus.api.jpa" version="3.0.2" />
<artifact type="bundle" name="org.datanucleus.store.rdbms" version="3.0.2" />
<artifact type="bundle" name="org.datanucleus.jdo.query" version="3.0.0" />
<artifact type="bundle" name="org.datanucleus.jpa.query" version="3.0.0" />
</plan> |
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| Re: NoClassDefFound: javax.persistence.criteria.CriteriaQuery [message #729430 is a reply to message #728696] |
Mon, 26 September 2011 03:43 |
| Eclipse User |
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Hi Matthew
If you pare down your app to be a DataNucleus sample, feel free to put it on github and we can reference it from Virgo.
BTW years of experience with OSGi doesn't make you immune to head spinning when it comes to ORM. I guess it's that ORM is complex, especially when you have to understand some parts of the implementation in order to get it going with OSGi. I'm so pleased Dmitry is a Virgo committer as it's great to have an ORM expert in the team!
Regards,
Glyn
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Ok. We should start a wiki page on this. What do you want first? Hibernate? OpenJPA? EclipseLink? With/without spring? With or without using gemini jpa/data-access? Scoped or un-scoped?