axis2 webservice deployment error: This Web axisService has deployment faults: Error: java.lang.UnsupportedClassVersionError: Bad version number in .class file

I am getting following error for my webservice on AXIS2, on linux machine any ideas... please help!

This Web axisService has deployment faults
Error: java.lang.UnsupportedClassVersionError: Bad version number in .class file at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at org.apache.axis2.util.Loader.loadClass(Loader.java:218) at org.apache.axis2.deployment.DescriptionBuilder.loadMessageReceiver(DescriptionBuilder.java:190) at org.apache.axis2.deployment.DescriptionBuilder.processMessageReceivers(DescriptionBuilder.java:170) at org.apache.axis2.deployment.ServiceBuilder.populateService(ServiceBuilder.java:245) at org.apache.axis2.deployment.ServiceGroupBuilder.populateServiceGroup(ServiceGroupBuilder.java:101) at org.apache.axis2.deployment.repository.util.ArchiveReader.buildServiceGroup(ArchiveReader.java:103) at org.apache.axis2.deployment.repository.util.ArchiveReader.processServiceGroup(ArchiveReader.java:172) at org.apache.axis2.deployment.ServiceDeployer.deploy(ServiceDeployer.java:78) at org.apache.axis2.deployment.repository.util.DeploymentFileData.deploy(DeploymentFileData.java:137) at org.apache.axis2.deployment.DeploymentEngine.doDeploy(DeploymentEngine.java:571) at org.apache.axis2.deployment.repository.util.WSInfoList.update(WSInfoList.java:141) at org.apache.axis2.deployment.RepositoryListener.update(RepositoryListener.java:318) at org.apache.axis2.deployment.RepositoryListener.checkServices(RepositoryListener.java:220) at org.apache.axis2.deployment.DeploymentEngine.loadServices(DeploymentEngine.java:118) at org.apache.axis2.deployment.WarBasedAxisConfigurator.loadServices(WarBasedAxisConfigurator.java:272) at org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContext(ConfigurationContextFactory.java:78) at org.apache.axis2.transport.http.AxisServlet.initConfigContext(AxisServlet.java:500) at org.apache.axis2.transport.http.AxisServlet.init(AxisServlet.java:420) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1161) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:981) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4058) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4364) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:829) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:718) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:490) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1147) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:578) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Start Free Trial