Struts Problem Report

Struts has detected an unhandled exception:

Messages:
File: org/apache/struts2/impl/StrutsActionProxy.java
Line number: 69

Stacktraces

java.lang.NullPointerException
    org.apache.struts2.impl.StrutsActionProxy.getErrorMessage(StrutsActionProxy.java:69)
    com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:185)
    org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)
    org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)
    com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:500)
    org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:432)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:313)
    org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:287)
    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:218)
    org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
    org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
    com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)
    com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98)
    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:222)
    org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
    org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
    org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
    org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1093)
    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:166)
    org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
    org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
    org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
    org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1093)
    org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:291)
    com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:666)
    com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:597)
    com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:872)
    com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)
    com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)
    com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)
    com.sun.enterprise.web.portunif.PortUnificationPipeline$PUTask.doTask(PortUnificationPipeline.java:382)
    com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:264)
    com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)