Getting an issue while enabling jira-schema-diagram-generator-plugin

2014-08-19 03:02:43,253 http-bio-8081-exec-20 ERROR 182x146x1 1pne1hf 10.210.20.119,10.100.3.144 /rest/plugins/1.0/com.atlassian.jira.jira-schema-diagram-generator-plugin-key [atlassian.plugin.manager.DefaultPluginManager] There was an error loading the descriptor 'Generate Schema' of plugin 'com.atlassian.jira.jira-schema-diagram-generator-plugin'. Disabling.
java.lang.RuntimeException: Unable to enable web fragment
at com.atlassian.plugin.web.descriptors.AbstractWebFragmentModuleDescriptor.enabled(AbstractWebFragmentModuleDescriptor.java:133)
at com.atlassian.plugin.web.descriptors.DefaultWebItemModuleDescriptor.enabled(DefaultWebItemModuleDescriptor.java:72)
at com.atlassian.plugin.web.descriptors.DefaultAbstractWebFragmentModuleDescriptor.enabled(DefaultAbstractWebFragmentModuleDescriptor.java:34)
at com.atlassian.plugin.manager.DefaultPluginManager.notifyModuleEnabled(DefaultPluginManager.java:1603)
at com.atlassian.plugin.manager.DefaultPluginManager.enableConfiguredPluginModule(DefaultPluginManager.java:1395)
at com.atlassian.plugin.manager.DefaultPluginManager.enableConfiguredPluginModules(DefaultPluginManager.java:1362)
at com.atlassian.plugin.manager.DefaultPluginManager.notifyPluginEnabled(DefaultPluginManager.java:1340)
at com.atlassian.plugin.manager.DefaultPluginManager.enablePlugins(DefaultPluginManager.java:1312)
at com.atlassian.jira.plugin.JiraPluginManager.enablePlugins(JiraPluginManager.java:89)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.atlassian.plugin.osgi.hostcomponents.impl.DefaultComponentRegistrar$ContextClassLoaderSettingInvocationHandler.invoke(DefaultComponentRegistrar.java:129)
at com.sun.proxy.$Proxy553.enablePlugins(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
at org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:58)
at org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:62)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.osgi.service.util.internal.aop.ServiceTCCLInterceptor.invokeUnprivileged(ServiceTCCLInterceptor.java:56)
at org.springframework.osgi.service.util.internal.aop.ServiceTCCLInterceptor.invoke(ServiceTCCLInterceptor.java:39)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.osgi.service.importer.support.LocalBundleContextAdvice.invoke(LocalBundleContextAdvice.java:59)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at com.sun.proxy.$Proxy1475.enablePlugins(Unknown Source)
at com.atlassian.upm.core.impl.PluginEnablementServiceImpl$1.doInTransaction(PluginEnablementServiceImpl.java:84)
at com.atlassian.upm.core.impl.PluginEnablementServiceImpl$1.doInTransaction(PluginEnablementServiceImpl.java:60)
at com.atlassian.sal.core.transaction.HostContextTransactionTemplate$1.doInTransaction(HostContextTransactionTemplate.java:25)
at com.atlassian.jira.DefaultHostContextAccessor.doInTransaction(DefaultHostContextAccessor.java:34)
at sun.reflect.GeneratedMethodAccessor130.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.atlassian.plugin.osgi.hostcomponents.impl.DefaultComponentRegistrar$ContextClassLoaderSettingInvocationHandler.invoke(DefaultComponentRegistrar.java:129)
at com.sun.proxy.$Proxy341.doInTransaction(Unknown Source)
...............................................

Caused by: com.atlassian.plugin.web.conditions.ConditionLoadingException: Could not load 'com.atlassian.jira.plugin.webfragment.conditions.UserIsSysAdminCondition' in plugin com.atlassian.jira.jira-schema-diagram-generator-plugin
at com.atlassian.jira.plugin.webfragment.JiraWebFragmentHelper.loadCondition(JiraWebFragmentHelper.java:50)
at com.atlassian.plugin.web.descriptors.AbstractWebFragmentModuleDescriptor$1.create(AbstractWebFragmentModuleDescriptor.java:169)
at com.atlassian.plugin.web.descriptors.ConditionElementParser.makeConditionImplementation(ConditionElementParser.java:86)
... 274 more
Caused by: java.lang.IllegalStateException: Cannot create object because the plugin container is unavailable.
at com.atlassian.plugin.osgi.factory.OsgiPluginInstalledHelper.getRequiredContainerAccessor(OsgiPluginInstalledHelper.java:199)
at com.atlassian.plugin.osgi.factory.OsgiPlugin.autowire(OsgiPlugin.java:369)
at com.atlassian.plugin.osgi.factory.OsgiPlugin.autowire(OsgiPlugin.java:359)
at com.atlassian.jira.plugin.PluginInjector.newInstance(PluginInjector.java:30)
at com.atlassian.jira.plugin.webfragment.JiraWebFragmentHelper.loadCondition(JiraWebFragmentHelper.java:46)
... 276 more