[jboss-dev-forums] [JBoss AS7 Development] - ClassNotFoundException when deploying ear file on Jboss AS 7

[Catalin Moga]

Catalin Moga [http://community.jboss.org/people/mcatalin23] created the discussion

"ClassNotFoundException when deploying ear file on Jboss AS 7"

To view the discussion, visit: http://community.jboss.org/message/617351#617351

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I included my ear file into <jboss_home>\standalone\deployments\ folder.
The ear file was generated with Jboss Developer Studio version 4.0.0.GA.

I'm getting following error when starting Jboss 7 as standalone:

12:07:08,729 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC00001: Failed to start service jboss.deployment.unit."<ear_name>.ear".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.unit."<ear_name>.ear".INSTALL: Failed to process phase INSTALL of deployment "<ear_name>.ear"
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:121)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1765)
    at org.jboss.msc.service.ServiceControllerImpl$ClearTCCLTask.run(ServiceControllerImpl.java:2291)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_23]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_23]
    at java.lang.Thread.run(Thread.java:662) [:1.6.0_23]
Caused by: java.lang.RuntimeException: Error getting reflective information for class <my_class_name>
    at org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex.getClassIndex(DeploymentReflectionIndex.java:70)
    at org.jboss.as.ee.component.EEModuleClassDescription$DefaultConfigurator.configure(EEModuleClassDescription.java:144)
    at org.jboss.as.ee.component.EEClassConfigurationProcessor.processClasses(EEClassConfigurationProcessor.java:133)
    at org.jboss.as.ee.component.EEClassConfigurationProcessor.deploy(EEClassConfigurationProcessor.java:76)
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:115)
    ... 5 more
*Caused by: java.lang.NoClassDefFoundError: Lorg/apache/log4j/Category;*
    at java.lang.Class.getDeclaredFields0(Native Method) [:1.6.0_23]
    at java.lang.Class.privateGetDeclaredFields(Class.java:2291) [:1.6.0_23]
    at java.lang.Class.getDeclaredFields(Class.java:1743) [:1.6.0_23]
    at org.jboss.as.server.deployment.reflect.ClassReflectionIndex.<init>(ClassReflectionIndex.java:57)
    at org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex.getClassIndex(DeploymentReflectionIndex.java:66)
    ... 9 more
*Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Category from [Module "deployment.<ear_name>.ear.<jar_name>.jar:main" from Service Module Loader]*
    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:191)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:358)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:330)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:307)
    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:101)
    ... 14 more


Following instructions from
 https://docs.jboss.org/author/display/AS7/How+do+I+migrate+my+application+from+AS5+or+AS6+to+AS7 https://docs.jboss.org/author/display/AS7/How+do+I+migrate+my+application+from+AS5+or+AS6+to+AS7
section "+How to find the JBoss module dependency"+
I searched for the jboss 7 module that contains the class *org.apache.log4j.Category*
The class is included into following jar: <jboss_home>\modules\org\apache\log4j\main\log4j-1.2.16.jar
>From module.xml file I got the module name *org.apache.log4j*, and I added this module name to the Dependencies in the MANIFEST.MF file:
like *Dependencies: org.apache.log4j*

I did all these steps from the documentation but I still get the same error ClassNotFoundException.
I have tried to update the main MANIFEST.MF file from the ear and also the MANIFEST.MF file from jar included into the ear that requires the class.

The MANIFEST.MF file I used is attached.

Where is the problem regarding this issue?
Is anything wrong with my configuration for manifest file? I manually edited the manifest file.
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