Bonjour a tous , depuis ce matin , j ai probleme avec mon déploiement jboss 6

17:38:07,923 ERROR [AbstractKernelController] Error installing to PostClassLoader: name=vfsfile:/C:/Jboss/EAP/jboss-eap-5.1/jboss-as/server/default/deploy/LEL.ear/ state=ClassLoader mode=Manual requiredState=PostClassLoader
org.jboss.deployers.spi.DeploymentException: Error during deploy: vfsfile:/C:/Jboss/EAP/jboss-eap-5.1/jboss-as/server/default/deploy/LEL.ear/LigneWeb-1.0.war/
at org.jboss.deployers.spi.DeploymentException.rethrowAsDeploymentException(DeploymentException.java:49)
at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:185)
at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1454)
at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1172)
at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1225)
at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1113)
at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1652)
at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:938)
at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)
at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:988)
at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:826)
at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:556)
at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:789)
at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:699)
at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.process(MainDeployerAdapter.java:117)
at org.jboss.system.server.profileservice.repository.ProfileDeployAction.install(ProfileDeployAction.java:70)
at org.jboss.system.server.profileservice.repository.AbstractProfileAction.install(AbstractProfileAction.java:53)
at org.jboss.system.server.profileservice.repository.AbstractProfileService.install(AbstractProfileService.java:403)
at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1652)
at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:938)
at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)
at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:988)
at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:778)
at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:543)
at org.jboss.system.server.profileservice.repository.AbstractProfileService.registerProfile(AbstractProfileService.java:308)
at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:256)
at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:461)
at org.jboss.Main.boot(Main.java:221)
at org.jboss.Main$1.run(Main.java:556)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at org.jboss.metadata.process.processor.ejb.jboss.SetDefaultLocalBusinessInterfaceProcessor.process(SetDefaultLocalBusinessInterfaceProcessor.java:114)
at org.jboss.metadata.process.chain.ejb.jboss.JBossMetaDataProcessorChain.process(JBossMetaDataProcessorChain.java:115)
at org.jboss.ejb3.deployers.Ejb3MetadataProcessingDeployer.deploy(Ejb3MetadataProcessingDeployer.java:142)
at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:179)
... 30 more
un conflit de jar surement mais par ou cherche merci d'avance