ClassNotFound on deployment of a SchemaResolverDeployer

[dmlloyd]

Deploying my threads deployer on JBossAS (build from clean trunk as of about 30 minutes ago) yields:

11:46:50,843 ERROR [AbstractKernelController] Error installing to Real: name=vfszip:/home/david/src/java/jbossas/trunk/build/output/jboss-5.0.0.GA/server/default/deploy/jboss-threads.deployer state=PreReal mode=Manual requiredState=Real
org.jboss.deployers.spi.DeploymentException: Error deploying: vfszip:/home/david/src/java/jbossas/trunk/build/output/jboss-5.0.0.GA/server/default/deploy/jboss-threads.deployer
 at org.jboss.deployers.spi.DeploymentException.rethrowAsDeploymentException(DeploymentException.java:49)
 at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataFactoryVisitor.deploy(BeanMetaDataFactoryVisitor.java:136)
 at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployerWithInput.deploy(AbstractRealDeployerWithInput.java:125)
 at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployerWithInput.internalDeploy(AbstractRealDeployerWithInput.java:102)
 at org.jboss.deployers.spi.deployer.helpers.AbstractComponentDeployer.internalDeploy(AbstractComponentDeployer.java:78)
 at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50)
 at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171)
 at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1439)
 at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1157)
 at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1098)
 at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
 at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598)
 at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
 at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062)
 at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
 at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
 at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
 at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781)
 at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:545)
 at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:290)
 at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:221)
 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
 at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
 at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
 at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
 at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.IllegalArgumentException: Exception loading class for ScopeKey addition.
 at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataFactoryVisitor.addBeanComponent(BeanMetaDataFactoryVisitor.java:67)
 at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataFactoryVisitor.deploy(BeanMetaDataFactoryVisitor.java:126)
 ... 28 more
Caused by: java.lang.ClassNotFoundException: org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataFactoryDeployer from BaseClassLoader@830911c{VFSClassLoaderPolicy@2c86c977{name=vfszip:/home/david/src/java/jbossas/trunk/build/output/jboss-5.0.0.GA/server/default/deploy/jboss-threads.deployer domain=ClassLoaderDomain@5a57e787{name=DefaultDomain parentPolicy=BEFORE parent=org.jboss.system.NoAnnotationURLClassLoader@21abab88} roots=[MemoryContextHandler@1158986359[path= context=vfsmemory://3j001-no32d3-foa9setw-1-foa9twdo-9n real=vfsmemory://3j001-no32d3-foa9setw-1-foa9twdo-9n], DelegatingHandler@1407057423[path=jboss-threads.deployer context=file:/home/david/src/java/jbossas/trunk/build/output/jboss-5.0.0.GA/server/default/deploy/ real=file:/home/david/src/java/jbossas/trunk/build/output/jboss-5.0.0.GA/server/default/deploy/jboss-threads.deployer]] delegates=[FilteredDelegateLoader@1352b5cd{delegate=VFSClassLoaderPolicy@22753e7a{vfszip:/home/david/src/java/jbossas/trunk/build/output/jboss-5.0.0.GA/server/default/deploy/jboss-threads.jar}}] exported=[]}}
 at org.jboss.classloader.spi.base.BaseClassLoader.loadClass(BaseClassLoader.java:385)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
 at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataFactoryVisitor.addBeanComponent(BeanMetaDataFactoryVisitor.java:63)
 ... 29 more

The important error there is "java.lang.ClassNotFoundException: org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataFactoryDeployer". Happens with both minimal and default configs. Am I maybe making some mistake? Some classloader dependency I have to add?

[dmlloyd]

Wait, I see where this is coming from. I'm still declaring my deployer like this:

deployment xmlns="urn:jboss:bean-deployer:2.0">
 <bean name="JBossThreadsMetaDataFactoryDeployer" class="org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataFactoryDeployer">
 <constructor>
 <parameter>org.jboss.threads.metadata.ThreadsMetaData</parameter>
 </constructor>
 </bean>

 <bean name="JBossThreadsMetaDataSchemaResolverDeployer" class="org.jboss.deployers.vfs.spi.deployer.SchemaResolverDeployer">
 <constructor>
 <parameter>org.jboss.threads.metadata.ThreadsMetaData</parameter>
 </constructor>
 <property name="name">jboss-threads.xml</property>
 <property name="registerWithJBossXB">true</property>
 </bean>
</deployment>

Which is clearly not safe against refactors. I suppose I should use the "deployers" stuff.

Though I just noticed that the jboss-deployers-2_0.xsd schema has a targetNamespace of "urn:jboss:classloader:1.0". Oops? :-)

[dmlloyd]

Also it uses 'required="true"' etc when it should be using 'use="required"'. I seem to recall reporting this before. :-)

Can I commit a fix for this without screwing anything up?

[dmlloyd]

Now I see that jboss-deployers doesn't have a tag for BeanMetaDataFactory deployers. So I guess I'm back to my original problem of finding where that class went :)

[alesj]

Also it uses 'required="true"' etc when it should be using 'use="required"'. I seem to recall reporting this before. :-)

Can I commit a fix for this without screwing anything up?

Sure, go ahead.
I'll port it to branch then.

[alesj]

So I guess I'm back to my original problem of finding where that class went :)

It's still there:
- http://anonsvn.jboss.org/repos/jbossas/projects/jboss-deployers/branches/Branch_2_0/deployers-vfs/src/main/java/org/jboss/deployers/vfs/deployer/kernel/BeanMetaDataFactoryDeployer.java
Must be something else. :-)

[alesj]

btw: deployers go into deployers/
- file:/home/david/src/java/jbossas/trunk/build/output/jbos
s-5.0.0.GA/server/default/deploy/jboss-threads.deployer

Although they should work in deploy/ as well. :-)

[alesj]

Scott was seeing this here:
- http://lists.jboss.org/pipermail/jboss-dev-forums/2008-November/028087.html
Dunno what he did to fix it.

[dmlloyd]

Schema fixed in trunk. Will work some more on this tonight...

[dmlloyd]

OK, latest update. Figuring that it was due to the fact that the classloading configuration for my deployer did not include the appropriate deployer classes, I changed my jboss-classloading.xml as follows:

<?xml version="1.0" encoding="UTF-8"?>

<classloading name="jboss-threads-deployer-classloader" version="@VERSION@" xmlns="urn:jboss:classloading:1.0">
 <requirements>
 <module name="jboss-threads"/>
 <package name="org.jboss.deployers.vfs.deployer.kernel"/>
 <package name="org.jboss.deployers.vfs.spi.deployer"/>
 </requirements>
</classloading>

Now I get an NPE:

14:57:40,307 ERROR [AbstractKernelController] Error resolving dependencies for ClassLoader: name=vfszip:/home/david/src/java/jbossas/trunk/build/output/jboss-5.0.0.GA/server/default/deploy/jboss-threads.deployer state=Describe mode=Manual requiredState=ClassLoader
java.lang.NullPointerException
 at org.jboss.classloading.spi.dependency.ClassLoadingSpace.resolve(ClassLoadingSpace.java:325)
 at org.jboss.classloading.spi.dependency.ClassLoadingSpace.joinAndResolve(ClassLoadingSpace.java:122)
 at org.jboss.classloading.spi.dependency.ClassLoadingSpace.joinAndResolve(ClassLoadingSpace.java:169)
 at org.jboss.classloading.spi.dependency.ClassLoadingSpace.resolve(ClassLoadingSpace.java:325)
 at org.jboss.classloading.spi.dependency.Module.resolveModule(Module.java:737)
 at org.jboss.classloading.spi.dependency.RequirementDependencyItem.resolve(RequirementDependencyItem.java:87)
 at org.jboss.dependency.plugins.AbstractDependencyInfo.resolveDependencies(AbstractDependencyInfo.java:143)
 at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1103)
 at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1039)
 at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
 at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
 at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
 at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781)
 at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:545)
 at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:290)
 at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:221)
 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
 at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
 at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
 at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
 at java.lang.Thread.run(Thread.java:619)
14:57:40,315 WARN [HDScanner] Failed to process changes
org.jboss.deployers.client.spi.IncompleteDeploymentException: Summary of incomplete deployments (SEE PREVIOUS ERRORS FOR DETAILS):

*** CONTEXTS IN ERROR: Name -> Error

vfszip:/home/david/src/java/jbossas/trunk/build/output/jboss-5.0.0.GA/server/default/deploy/jboss-threads.deployer -> java.lang.NullPointerException


 at org.jboss.deployers.plugins.deployers.DeployersImpl.checkComplete(DeployersImpl.java:863)
 at org.jboss.deployers.plugins.main.MainDeployerImpl.checkComplete(MainDeployerImpl.java:665)
 at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:293)
 at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:221)
 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
 at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
 at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
 at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
 at java.lang.Thread.run(Thread.java:619)

NPE = bad news...

[dmlloyd]

BTW, the @VERSION@ thing gets replaced with my real version number during build (yes, I checked it).

[dmlloyd]

If it matters, the jboss-classloading.xml of the jboss-threads.jar looks like this:

<?xml version="1.0" encoding="UTF-8"?>

<classloading name="jboss-threads-classloader" version="1.0.0.Alpha" xmlns="urn:jboss:classloading:1.0">
 <capabilities>
 <module name="jboss-threads" version="1.0.0.Alpha"/>
 <package name="org.jboss.threads" version="1.0.0.Alpha"/>
 </capabilities>
 <requirements/>
</classloading>

[alesj]

I'll check the NPE.
Trying to mock your case.

[alesj]

Quick check/hack,
what if you put import-all="false" to classloading element?

[alesj]

"alesj" wrote:
Quick check/hack,
what if you put import-all="false" to classloading element?

Although this should be there by default ...