1 Reply Latest reply on Feb 7, 2006 9:38 AM by rme

No ClassLoaders found for Service

rme Feb 4, 2006 5:53 PM

JBoss 3.2.5:
So, I've tried to load a JBoss Service but dispite many different
combinations of ear/sar/-server.xml/etc. I allways get the same
error message:

2006-02-04 14:17:36,654 INFO [EARDeployer] - Init J2EE application:
file:/usr/local/ED/app/jboss/server/cs/deploy/edgedynamics/servicetest.ear
2006-02-04 14:17:38,725 WARN [NestedThrowable] - Duplicate throwable nesting
of same base type: class org.jboss.deployment.DeploymentException is assignable
from: class org.jboss.deployment.DeploymentException
2006-02-04 14:17:38,728 ERROR [MainDeployer] - could not create deployment:
file:/usr/local/ED/app/jboss/server/cs/tmp/deploy/tmp59967servicetest.ear-contents/servicetest-service.xml
org.jboss.deployment.DeploymentException: create operation failed for package
file:/usr/local/ED/app/jboss/server/cs/tmp/deploy/tmp59967servicetest.ear-contents/servicetest-service.xml;
- nested throwable: (org.jboss.deployment.DeploymentException: No ClassLoaders
found for: com.servicetest.ServerTest ; - nested
throwable: (java.lang.ClassNotFoundException: No ClassLoaders found for:
com.servicetest.ServerTest ))
at org.jboss.deployment.SARDeployer.create(SARDeployer.java:227)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:790)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:782)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:644)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:608)
at sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
at $Proxy7.deploy(Unknown Source)
at
org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:304)
at
org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:478)
at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:201)
at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:212)
at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:191)
Caused by: org.jboss.deployment.DeploymentException: No ClassLoaders found for:
com.servicetest.ServerTest ; - nested throwable:
(java.lang.ClassNotFoundException: No ClassLoaders found for:
com.servicetest.ServerTest )
at
org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:139)
at
org.jboss.system.ServiceController.install(ServiceController.java:198)
at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
at $Proxy4.install(Unknown Source)
at org.jboss.deployment.SARDeployer.create(SARDeployer.java:204)
... 20 more
Caused by: java.lang.ClassNotFoundException: No ClassLoaders found for:com.servicetest.ServerTest
at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:275)
at
org.jboss.mx.loading.UnifiedClassLoader3.loadClassImpl(UnifiedClassLoader3.java:178)
at
org.jboss.mx.loading.UnifiedClassLoader3.loadClass(UnifiedClassLoader3.java:132)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at
org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:843)
at
org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:290)
at
org.jboss.mx.server.MBeanServerImpl.createMBean(MBeanServerImpl.java:317)
at org.jboss.system.ServiceCreator.install(ServiceCreator.java:98)
at
org.jboss.system.ServiceConfigurator.internalInstall(ServiceConfigurator.java:149)
at
org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:114)
... 33 more
2006-02-04 14:17:38,774 ERROR [MainDeployer] - could not create deployment:
file:/usr/local/ED/app/jboss/server/cs/deploy/edgedynamics/servicetest.ear
org.jboss.deployment.DeploymentException: create operation failed for package
file:/usr/local/ED/app/jboss/server/cs/tmp/deploy/tmp59967servicetest.ear-contents/servicetest-service.xml;
- nested throwable: (org.jboss.deployment.DeploymentException: No ClassLoaders
found for: com.servicetest.ServerTest ; - nested
throwable: (java.lang.ClassNotFoundException: No ClassLoaders found for:
com.servicetest.ServerTest ))
at org.jboss.deployment.SARDeployer.create(SARDeployer.java:227)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:790)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:782)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:644)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:608)
at sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
at $Proxy4.install(Unknown Source) at org.jboss.deployment.SARDeployer.create(SARDeployer.java:204)
... 20 more
Caused by: java.lang.ClassNotFoundException: No ClassLoaders found for:
com.servicetest.ServerTest
at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:275)
at
org.jboss.mx.loading.UnifiedClassLoader3.loadClassImpl(UnifiedClassLoader3.java:178)
at
org.jboss.mx.loading.UnifiedClassLoader3.loadClass(UnifiedClassLoader3.java:132)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at
org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:843) at
org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:290)
at
org.jboss.mx.server.MBeanServerImpl.createMBean(MBeanServerImpl.java:317)
at org.jboss.system.ServiceCreator.install(ServiceCreator.java:98)
at
org.jboss.system.ServiceConfigurator.internalInstall(ServiceConfigurator.java:149)
at
org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:114)

The Service java class is:

package com.servicetest;

public class ServerTest implements ServerTestMBean {
public ServerTest() {
System.out.println("ServerTest");
}

public void start() {
System.out.println("ServerTest.start");
}
public void stop() {
System.out.println("ServerTest.stop");
}
}

and the mbean is:

package com.servicetest;

public interface ServerTestMBean {
void start();
void stop();
}

(I've tried using the ServiceMBeanSupport class but same error message.)

My ear has:

META-INF/jboss-app.xml

<?xml version="1.0" encoding="UTF-8"?>
>jboss-app>
>loader-repository>com.servicetest:loader=edge-servicetest.ear</loader-repository>
>module>
>service>servicetest-service.xml
>/module>
>/jboss-app>

Removing the loader-repository makes no difference.

The META-INF/application.xml is:

<?xml version="1.0" encoding="UTF-8"?>
>application id="STEST_App">
>display-name>Service Test Server</display-name>
>module id="STEST">
>java>servicetest-service.xml
>/module>
<>/application>

I've tried removing the module element, same error message.
Having a DOCTYPE element makes no difference.

The servicetest-service.xml contains:

<?xml version="1.0" encoding="UTF-8"?>
>server>
>mbean code="com.servicetest.ServerTest "
name="com.servicetest:service=ServerTest"/>
>/server>

Having a DOCTYPE element makes no difference.

I've tried using a jboss-service.xml file rather than jboss-app.xml
in a sar-file and got the same classloader not found error.

We've got other ears with JBoss services but they also have ejbs.
So I tried added a do-nothing ejb, but sill go the same error.

Help.
Thanks.
Richard

1. Re: No ClassLoaders found for Service

rme Feb 7, 2006 9:38 AM (in response to rme)

Thanks to all who provided help.
While the solution probably indicates either
a bug or oversight in JBoss, well, thats
the way it goes I guess.
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