servlet/InvokerServlet$GetCredentialAction.class 错误

2012-06-15 17:11:45,192 INFO  [STDOUT] 17:11:45,192 INFO  [SpringObjectFactory] Setting autowire strategy to name
2012-06-15 17:11:45,192 INFO  [STDOUT] 17:11:45,192 INFO  [StrutsSpringObjectFactory] ... initialized Struts-Spring integration successfully
2012-06-15 17:11:47,633 ERROR [STDERR] java.lang.Exception: Could not load invoker/war/WEB-INF/classes/org/jboss/invocation/http/servlet/InvokerServlet$GetCredentialAction.class
2012-06-15 17:11:47,635 ERROR [STDERR]  at com.opensymphony.xwork2.util.finder.ClassFinder.readClassDef(ClassFinder.java:745)
2012-06-15 17:11:47,635 ERROR [STDERR]  at com.opensymphony.xwork2.util.finder.ClassFinder.<init>(ClassFinder.java:148)
2012-06-15 17:11:47,636 ERROR [STDERR]  at org.apache.struts2.convention.PackageBasedActionConfigBuilder.findActions(PackageBasedActionConfigBuilder.java:295)
2012-06-15 17:11:47,636 ERROR [STDERR]  at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildActionConfigs(PackageBasedActionConfigBuilder.java:277)
2012-06-15 17:11:47,636 ERROR [STDERR]  at org.apache.struts2.convention.ClasspathPackageProvider.loadPackages(ClasspathPackageProvider.java:52)
2012-06-15 17:11:47,636 ERROR [STDERR]  at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:200)