Error:Java.lang.UnsupportedClassVersion.

, i am new to Apace Axis 2 technology. I am getting this error after successful deploying the simple web services using web logic. getting this error while testing it. Under Services it is dispalyed as Fault services.

Web axisService has deployment faults
Error: java.lang.UnsupportedClassVersionError: bt/resolve/motive/MotiveTask/MotiveTaskSync (Unsupported major.minor version 49.0) at java.lang.ClassLoader.defineClass(Ljava.lang.String;[BIILjava.security.ProtectionDomain;)Ljava.lang.Class;(Unknown Source) at java.security.SecureClassLoader.defineClass(Ljava.lang.String;[BIILjava.security.CodeSource;)Ljava.lang.Class;(SecureClassLoader.java:123) at java.net.URLClassLoader.defineClass(Ljava.lang.String;Lsun.misc.Resource;)Ljava.lang.Class;(URLClassLoader.java:251) at java.net.URLClassLoader.access$100(Ljava.net.URLClassLoader;Ljava.lang.String;Lsun.misc.Resource;)Ljava.lang.Class;(URLClassLoader.java:55) at java.net.URLClassLoader$1.run()Ljava.lang.Object;(URLClassLoader.java:194) at jrockit.vm.AccessController.do_privileged_exc(Ljava.security.PrivilegedExceptionAction;Ljava.security.AccessControlContext;I)Ljava.lang.Object;(Unknown Source) at jrockit.vm.AccessController.doPrivileged(Ljava.security.PrivilegedExceptionAction;Ljava.security.AccessControlContext;)Ljava.lang.Object;(Unknown Source) at java.net.URLClassLoader.findClass(Ljava.lang.String;)Ljava.lang.Class;(URLClassLoader.java:187) at java.lang.ClassLoader.loadClass(Ljava.lang.String;Z)Ljava.lang.Class;(Unknown Source) at java.lang.ClassLoader.loadClass(Ljava.lang.String;)Ljava.lang.Class;(Unknown Source) at java.lang.ClassLoader.loadClassFromNative(II)Ljava.lang.Class;(Unknown Source) at jrockit.vm.Classes.forName0(Ljava.lang.String;ZI)I(Unknown Source) at jrockit.vm.Classes.forName(Ljava.lang.String;ZLjava.lang.ClassLoader;)Ljava.lang.Class;(Unknown Source) at java.lang.Class.forName(Ljava.lang.String;ZLjava.lang.ClassLoader;)Ljava.lang.Class;(Unknown Source) at org.apache.ws.java2wsdl.SchemaGenerator.(Ljava.lang.ClassLoader;Ljava.lang.String;Ljava.lang.String;Ljava.lang.String;)V(SchemaGenerator.java:92) at org.apache.axis2.deployment.util.Utils.fillAxisService(Lorg.apache.axis2.description.AxisService;Lorg.apache.axis2.engine.AxisConfiguration;Ljava.util.ArrayList;)V(Utils.java:272) at org.apache.axis2.deployment.ServiceBuilder.populateService(Lorg.apache.axiom.om.OMElement;)Lorg.apache.axis2.description.AxisService;(ServiceBuilder.java:303) at org.apache.axis2.deployment.ServiceGroupBuilder.populateServiceGroup(Lorg.apache.axis2.description.AxisServiceGroup;)Ljava.util.ArrayList;(ServiceGroupBuilder.java:96) at org.apache.axis2.deployment.repository.util.ArchiveReader.buildServiceGroup(Ljava.io.InputStream;Lorg.apache.axis2.deployment.repository.util.ArchiveFileData;Lorg.apache.axis2.description.AxisServiceGroup;Ljava.util.HashMap;Lorg.apache.axis2.context.ConfigurationContext;)Ljava.util.ArrayList;(ArchiveReader.java:99) at org.apache.axis2.deployment.repository.util.ArchiveReader.processServiceGroup(Ljava.lang.String;Lorg.apache.axis2.deployment.repository.util.ArchiveFileData;Lorg.apache.axis2.description.AxisServiceGroup;ZLjava.util.HashMap;Lorg.apache.axis2.context.ConfigurationContext;)Ljava.util.ArrayList;(ArchiveReader.java:133) at org.apache.axis2.deployment.DeploymentEngine.doDeploy()V(DeploymentEngine.java:528) at org.apache.axis2.deployment.repository.util.WSInfoList.update()V(WSInfoList.java:196) at org.apache.axis2.deployment.RepositoryListener.update()V(RepositoryListener.java:227) at org.apache.axis2.deployment.RepositoryListener.checkServices()V(RepositoryListener.java:174) at org.apache.axis2.deployment.DeploymentEngine.loadServices()V(DeploymentEngine.java:88) at org.apache.axis2.deployment.WarBasedAxisConfigurator.loadServices()V(WarBasedAxisConfigurator.java:252) at org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContext(Lorg.apache.axis2.engine.AxisConfigurator;)Lorg.apache.axis2.context.ConfigurationContext;(ConfigurationContextFactory.java:72) at org.apache.axis2.transport.http.AxisServlet.initConfigContext(Ljavax.servlet.ServletConfig;)Lorg.apache.axis2.context.ConfigurationContext;(AxisServlet.java:392) at org.apache.axis2.transport.http.AxisServlet.init(Ljavax.servlet.ServletConfig;)V(AxisServlet.java:331) at weblogic.servlet.internal.ServletStubImpl$ServletInitAction.run()Ljava.lang.Object;(ServletStubImpl.java:1028) at weblogic.security.acl.internal.AuthenticatedSubject.doAs(Lweblogic.security.subject.AbstractSubject;Ljava.security.PrivilegedAction;)Ljava.lang.Object;(AuthenticatedSubject.java:321) at weblogic.security.service.SecurityManager.runAs(Lweblogic.security.acl.internal.AuthenticatedSubject;Lweblogic.security.acl.internal.AuthenticatedSubject;Ljava.security.PrivilegedAction;)Ljava.lang.Object;(SecurityManager.java:121)