2013-01-22 08:30:52,301 main ERROR      [atlassian.plugin.parsers.XmlDescriptorParser] There were problems loading the module 'rest' in plugin 'Atlassian JIRA - Admin Helper Plugin'. The module has been disabled.
2013-01-22 08:30:52,301 main ERROR      [atlassian.plugin.parsers.XmlDescriptorParser] net.sf.cglib.empty.Object$$EnhancerByCGLIB$$2f67d42c cannot be cast to com.atlassian.plugin.ModuleDescriptor
java.lang.ClassCastException: net.sf.cglib.empty.Object$$EnhancerByCGLIB$$2f67d42c cannot be cast to com.atlassian.plugin.ModuleDescriptor
	at com.atlassian.multitenant.plugins.MultiTenantModuleDescriptorFactory.getModuleDescriptor(MultiTenantModuleDescriptorFactory.java:96)
	at com.atlassian.plugin.parsers.XmlDescriptorParser.createModuleDescriptor(XmlDescriptorParser.java:190)
	at com.atlassian.plugin.parsers.XmlDescriptorParser.configurePlugin(XmlDescriptorParser.java:142)
	at com.atlassian.plugin.loaders.SinglePluginLoader.loadPlugin(SinglePluginLoader.java:135)
	at com.atlassian.plugin.loaders.SinglePluginLoader.loadAllPlugins(SinglePluginLoader.java:89)
	at com.atlassian.plugin.loaders.ClassPathPluginLoader.loadClassPathPlugins(ClassPathPluginLoader.java:59)
	at com.atlassian.plugin.loaders.ClassPathPluginLoader.loadAllPlugins(ClassPathPluginLoader.java:67)
	at com.atlassian.plugin.manager.DefaultPluginManager.init(DefaultPluginManager.java:146)
	at com.atlassian.jira.plugin.JiraPluginManager.start(JiraPluginManager.java:58)
	at com.atlassian.jira.ComponentManager$PluginSystem.start(ComponentManager.java:681)
	at com.atlassian.jira.ComponentManager.startPluginSystem(ComponentManager.java:240)
	at com.atlassian.jira.ComponentManager.quickStart(ComponentManager.java:233)
	at com.atlassian.jira.ComponentManager.start(ComponentManager.java:218)

     Atlassian JIRA - Admin Helper Plugin          : com.atlassian.jira.plugins.jira-admin-helper-plugin
          Version                                       : 1.5
          Status                                        : enabled
          Unloadable Reason                             : OSGi plugins cannot be deployed via the classpath, which is usually WEB-INF/lib.
 URL is: jar:file:/C:/Program Files/Atlassian/JIRA/atlassian-jira/WEB-INF/lib/jira-admin-helper-plugin-1.5.jar!/atlassian-plugin.xml
          Vendor                                        : Atlassian Pty Ltd
          Description                                   : The Admin Helper plugin helps admins determine visibility of custom fields and also provides reasons for why a user does not have certain permissions on an issue or does not receive notifications for that issue.