1 2 Previous Next 16 Replies Latest reply on Oct 26, 2015 10:00 AM by blawrence

class not found?

blawrence Sep 16, 2015 9:29 AM

So I've been struggling with this for a few days now. I'm want to add a custom filter into the portal. This filter is defined in a Java class in the extension ear. According to the docs, this should be do-able and everything points to the example extension for reference.

I followed the example, but I cannot get it to work.

So I decided to build the sample extension and deploy it. I've deployed the sample extension ear which includes the SampleFilter to include in the portal but it still doesn't work. I keep running into ClassNotFoundExceptions. The only way I can get it to work is if I put the jar file containing the org.exoplatform.sample.ext.web.SampleFilter into gatein.ear or gatein.ear/portal.war. From what I understand, modifying the portal war this way is not the way this should be done anymore and stuff should be put into the extension.

I've seen posts where people have said they got it working and even pasted stacktraces that show me its getting called, so I have no idea what I'm doing wrong.

Its like the classloader that loads up the portal can't find the classes in my extension.

I started using GateIn 3.7 on JBoss AS 7.1.1 and couldn't get it to work so I just downloaded the most recent distribution (JPP 6.1 on JBoss 7.1.2) to see if that was the issue and run into the same problem there.

Can anyone explain to me what the problem is?

Here is the exception stacktrace:

16:48:47,987 ERROR [exo.kernel.container.XMLObject] (MSC service thread 1-6) ERROR: Cannot set  field: filter of org.exoplatform.web.filter.FilterDefinition: java.lang.ClassNotFoundException: org.exoplatform.sample.ext.web.SampleFilter
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202) [rt.jar:1.6.0_21]
        at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.6.0_21]
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190) [rt.jar:1.6.0_21]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307) [rt.jar:1.6.0_21]
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) [rt.jar:1.6.0_21]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248) [rt.jar:1.6.0_21]
        at java.lang.Class.forName0(Native Method) [rt.jar:1.6.0_21]
        at java.lang.Class.forName(Class.java:247) [rt.jar:1.6.0_21]
        at org.exoplatform.commons.utils.ClassLoading.forName(ClassLoading.java:112) [exo.kernel.commons-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.commons.utils.ClassLoading.forName(ClassLoading.java:48) [exo.kernel.commons-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.xml.object.XMLObject.toObject(XMLObject.java:176) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.xml.object.XMLBaseObject.getObjectValue(XMLBaseObject.java:132) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.xml.object.XMLObject.toObject(XMLObject.java:185) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.ObjectParameter.setXMLObject(ObjectParameter.java:58) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.ObjectParameter.JiBX_binding_unmarshal_2_0(ObjectParameter.java) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.JiBX_bindingObjectParameter_access.unmarshal() [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.InitParams.JiBX_binding_unmarshal_3_0(InitParams.java) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.JiBX_bindingInitParams_access.unmarshal() [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.ComponentPlugin.JiBX_binding_unmarshal_1_0(ComponentPlugin.java) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.JiBX_bindingComponentPlugin_access.unmarshal() [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.JiBX_bindingMungeAdapter.JiBX_binding_unmarshal_1_3() [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.ExternalComponentPlugins.JiBX_binding_unmarshal_1_0(ExternalComponentPlugins.java) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.JiBX_bindingExternalComponentPlugins_access.unmarshal() [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.Configuration.JiBX_binding_unmarshal_1_0(Configuration.java) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.JiBX_bindingConfiguration_access.unmarshal() [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.jibx.runtime.impl.UnmarshallingContext.unmarshalElement(UnmarshallingContext.java:2757)
        at org.jibx.runtime.impl.UnmarshallingContext.unmarshalDocument(UnmarshallingContext.java:2948)
        at org.exoplatform.container.configuration.ConfigurationUnmarshaller$2.run(ConfigurationUnmarshaller.java:283) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.configuration.ConfigurationUnmarshaller$2.run(ConfigurationUnmarshaller.java:246) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.commons.utils.SecurityHelper.doPrivilegedExceptionAction(SecurityHelper.java:310) [exo.kernel.commons-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.configuration.ConfigurationUnmarshaller.unmarshall(ConfigurationUnmarshaller.java:245) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.configuration.ConfigurationManagerImpl.importConf(ConfigurationManagerImpl.java:233) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.configuration.ConfigurationManagerImpl.importConf(ConfigurationManagerImpl.java:202) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.configuration.ConfigurationManagerImpl.addConfiguration(ConfigurationManagerImpl.java:181) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.configuration.ConfigurationManagerImpl.addConfiguration(ConfigurationManagerImpl.java:120) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.RootContainer.createPortalContainer(RootContainer.java:654) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.RootContainer.createPortalContainers(RootContainer.java:346) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.gatein.integration.jboss.as7.web.StartupService.start(StartupService.java:45)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_21]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_21]
        at java.lang.Thread.run(Thread.java:619) [rt.jar:1.6.0_21]

16:48:48,017 ERROR [exo.kernel.container.ConfigurationManagerImpl] (MSC service thread 1-6) Cannot process the configuration jndi:/default-host/sample-ext/WEB-INF/conf/sample-ext/web/web-inf-extension-configuration.xml: org.jibx.runtime.JiBXException: Error while unmarshalling (line 66, col 10)
        at org.exoplatform.container.xml.ObjectParameter.JiBX_binding_unmarshal_2_0(ObjectParameter.java) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.JiBX_bindingObjectParameter_access.unmarshal() [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.InitParams.JiBX_binding_unmarshal_3_0(InitParams.java) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.JiBX_bindingInitParams_access.unmarshal() [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.ComponentPlugin.JiBX_binding_unmarshal_1_0(ComponentPlugin.java) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.JiBX_bindingComponentPlugin_access.unmarshal() [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.JiBX_bindingMungeAdapter.JiBX_binding_unmarshal_1_3() [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.ExternalComponentPlugins.JiBX_binding_unmarshal_1_0(ExternalComponentPlugins.java) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.JiBX_bindingExternalComponentPlugins_access.unmarshal() [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.Configuration.JiBX_binding_unmarshal_1_0(Configuration.java) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.JiBX_bindingConfiguration_access.unmarshal() [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.jibx.runtime.impl.UnmarshallingContext.unmarshalElement(UnmarshallingContext.java:2757)
        at org.jibx.runtime.impl.UnmarshallingContext.unmarshalDocument(UnmarshallingContext.java:2948)
        at org.exoplatform.container.configuration.ConfigurationUnmarshaller$2.run(ConfigurationUnmarshaller.java:283) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.configuration.ConfigurationUnmarshaller$2.run(ConfigurationUnmarshaller.java:246) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.commons.utils.SecurityHelper.doPrivilegedExceptionAction(SecurityHelper.java:310) [exo.kernel.commons-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.configuration.ConfigurationUnmarshaller.unmarshall(ConfigurationUnmarshaller.java:245) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.configuration.ConfigurationManagerImpl.importConf(ConfigurationManagerImpl.java:233) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.configuration.ConfigurationManagerImpl.importConf(ConfigurationManagerImpl.java:202) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.configuration.ConfigurationManagerImpl.addConfiguration(ConfigurationManagerImpl.java:181) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.configuration.ConfigurationManagerImpl.addConfiguration(ConfigurationManagerImpl.java:120) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.RootContainer.createPortalContainer(RootContainer.java:654) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.RootContainer.createPortalContainers(RootContainer.java:346) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.gatein.integration.jboss.as7.web.StartupService.start(StartupService.java:45)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_21]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_21]
        at java.lang.Thread.run(Thread.java:619) [rt.jar:1.6.0_21]
Caused by: java.lang.ClassNotFoundException: org.exoplatform.sample.ext.web.SampleFilter
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202) [rt.jar:1.6.0_21]
        at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.6.0_21]
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190) [rt.jar:1.6.0_21]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307) [rt.jar:1.6.0_21]
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) [rt.jar:1.6.0_21]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248) [rt.jar:1.6.0_21]
        at java.lang.Class.forName0(Native Method) [rt.jar:1.6.0_21]
        at java.lang.Class.forName(Class.java:247) [rt.jar:1.6.0_21]
        at org.exoplatform.commons.utils.ClassLoading.forName(ClassLoading.java:112) [exo.kernel.commons-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.commons.utils.ClassLoading.forName(ClassLoading.java:48) [exo.kernel.commons-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.xml.object.XMLObject.toObject(XMLObject.java:176) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.xml.object.XMLBaseObject.getObjectValue(XMLBaseObject.java:132) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.xml.object.XMLObject.toObject(XMLObject.java:185) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        at org.exoplatform.container.xml.ObjectParameter.setXMLObject(ObjectParameter.java:58) [exo.kernel.container-2.4.4-GA-redhat-2.jar:2.4.4-GA-redhat-2]
        ... 29 more

1. Re: example extension->sample filter->class not found?

blawrence Sep 17, 2015 12:45 PM (in response to blawrence)

Anyone?
Actions
2. Re: example extension->sample filter->class not found?

mposolda Sep 18, 2015 2:03 AM (in response to blawrence)

Hi,

I suggest to take a look at the sample-filter example sources . For the GateIn master, the sources are here: gatein-portal/examples/extension at master · gatein/gatein-portal · GitHub . So as first step, I would try to have things working with this example. Then as next step, you can compare the example with your own extension and doublecheck if you have all the config files, configuration etc correct.

Marek
Actions
3. Re: example extension->sample filter->class not found?

mposolda Sep 18, 2015 2:04 AM (in response to mposolda)

Some additional docs is also here: Portal Extension - GateIn Portal 3.5 - Project Documentation Editor
Actions
4. Re: example extension->sample filter->class not found?

blawrence Sep 18, 2015 9:06 AM (in response to mposolda)

Thanx for the suggestion, but after I couldn't get my own version working, I pulled the latest from git and built it using maven. This had the exact same problem.
Actions
5. Re: example extension->sample filter->class not found?

blawrence Sep 23, 2015 2:15 PM (in response to blawrence)

Can anyone else try this (deploying the sample extension) from a clean install?
Actions
6. Re: example extension->sample filter->class not found?

blawrence Oct 1, 2015 5:05 PM (in response to blawrence)

bump
Actions
7. Re: example extension->sample filter->class not found?

blawrence Oct 7, 2015 3:47 PM (in response to blawrence)

bump again...is there no one on this forum that can help me?
Actions
8. Re: example extension->sample filter->class not found?

blawrence Oct 7, 2015 4:12 PM (in response to blawrence)

could this issue be caused by running on AS7? I see in the extension README file that it references AS 5.1
Actions
9. Re: example extension->sample filter->class not found?

theute Oct 8, 2015 9:27 AM (in response to blawrence)

For the sake of testing, I tried with JBoss Portal 6.2 (the latest) and the portal extension quickstart from here: http://developers.redhat.com//quickstarts/portal/portal-extension/index.html

That worked just fine. If you login and go to http://localhost:8080/portal you will see the logo striked through and "Portal extension" being written.

Also note that Red Hat no longer support JBoss Portal (beside existing contracts), if you are starting on new projects, I would consider plain EAP, the Mobile Platform or other Portal solutions if that's what you really need: https://www.liferay.com/redhat-jboss
Actions
10. Re: example extension->sample filter->class not found?

theute Oct 8, 2015 9:31 AM (in response to theute)

(Actually it looks like there is a Groovy template issue there, but nothing like a CNFE)
Actions
11. Re: example extension->sample filter->class not found?

blawrence Oct 8, 2015 9:58 AM (in response to theute)

Maybe I should have been more clear...
I get this ClassNotFoundException during startup/deployment. The extension deploys fine and I can see that my extension is getting applied because the all of the resources (groovy templates, css files, etc, images, portlets) are being used for, but none of the classes that are defined as components for the org.exoplatform.services.listener.ListenerService to use (defined in extension-war/WEB-INF/conf/sample-ext/web/web-inf-extension-configuration.xml) can be found
Actions
12. Re: example extension->sample filter->class not found?

blawrence Oct 8, 2015 11:26 AM (in response to blawrence)

Thomas - I see your extension quickstart doesn't include the custom filters, listeners, etc that are defined in the Git repository:
https://github.com/gatein/gatein-portal/tree/master/examples/extension
I need a way to define a custom filter to the portal so I was looking to get these working.
Are these no longer supported features?
Actions
13. Re: example extension->sample filter->class not found?

blawrence Oct 9, 2015 10:42 AM (in response to blawrence)

So could the reason this isn't working is because Jboss AS7 doesn't use a unified class loader like previous versions of JBoss?
Actions
14. Re: example extension->sample filter->class not found?

blawrence Oct 20, 2015 2:22 PM (in response to blawrence)

wow not a lot of help coming from this forum
Actions

1 2 Previous Next

Go to original post