ava.lang.NullPointerException: This exception has no message.

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This exception has no message.
ava.lang.NullPointerException:
at com.sun.identity.console.property.ResponseProviderXMLBuilder.getPropertyNames(ResponseProviderXMLBuilder.java:70)
at com.sun.identity.console.property.PolicyPropertyXMLBuilderBase.getXML(PolicyPropertyXMLBuilderBase.java:73)
at com.sun.identity.console.policy.model.PolicyModelImpl.getResponseProviderXML(PolicyModelImpl.java:1399)
at com.sun.identity.console.policy.ResponseProviderOpViewBeanBase.getResponseProviderXML(ResponseProviderOpViewBeanBase.java:352)
at com.sun.identity.console.policy.ResponseProviderOpViewBeanBase.createPropertyModel(ResponseProviderOpViewBeanBase.java:150)
at com.sun.identity.console.policy.ResponseProviderOpViewBeanBase.initialize(ResponseProviderOpViewBeanBase.java:105)
at com.sun.identity.console.base.AMViewBeanBase.forwardTo(AMViewBeanBase.java:138)
at com.sun.identity.console.base.AMPrimaryMastHeadViewBean.forwardTo(AMPrimaryMastHeadViewBean.java:148)
at com.sun.identity.console.policy.SelectResponseProviderTypeViewBean.forwardToViewBean(SelectResponseProviderTypeViewBean.java:159)
at com.sun.identity.console.policy.SelectResponseProviderTypeViewBean.handleButton2Request(SelectResponseProviderTypeViewBean.java:117)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.iplanet.jato.view.command.DefaultRequestHandlingCommand.execute(DefaultRequestHandlingCommand.java:183)
at com.iplanet.jato.view.RequestHandlingViewBase.handleRequest(RequestHandlingViewBase.java:308)
at com.iplanet.jato.view.ViewBeanBase.dispatchInvocation(ViewBeanBase.java:802)
at com.iplanet.jato.view.ViewBeanBase.invokeRequestHandlerInternal(ViewBeanBase.java:740)
at com.iplanet.jato.view.ViewBeanBase.invokeRequestHandler(ViewBeanBase.java:571)
at com.iplanet.jato.ApplicationServletBase.dispatchRequest(ApplicationServletBase.java:957)
at com.iplanet.jato.ApplicationServletBase.processRequest(ApplicationServletBase.java:615)
at com.iplanet.jato.ApplicationServletBase.doPost(ApplicationServletBase.java:473)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:738)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)
at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:411)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:317)
at com.sun.identity.setup.AMSetupFilter.doFilter(AMSetupFilter.java:86)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:288)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:271)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:202)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)

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