Nullpointer exception when doing cache refresh

[Former Member]

Hi

I am getting below error in ID when trying to activate objects.

Can anyone help me with this??

Thrown: java.lang.NullPointerException: while trying to invoke the method com.sap.guid.IGUID.toHexString() of a null object returned from com.sap.aii.ib.bom.gen.XiReference.getSwc() at com.sap.aii.ibdir.server.abapcache.container.CacheContainer.serializeAdaptertype(CacheContainer.java:182) at com.sap.aii.ibdir.server.abapcache.container.CacheContainer.serializeAdaptertypes(CacheContainer.java:160) at com.sap.aii.ibdir.server.abapcache.container.CacheContainer.serializeContainerWithAdaptertypes(CacheContainer.java:132) at com.sap.aii.ibdir.server.abapcache.container.CacheContainer.containerWithAdaptertypesToXmlString(CacheContainer.java:122) at com.sap.aii.ibdir.server.abapcache.container.CacheContainer.addContainerToAbapCache(CacheContainer.java:96) at com.sap.aii.ibdir.server.abapcache.mapping.CacheMessageMappings.serializeInternal(CacheMessageMappings.java:294) at com.sap.aii.ibdir.server.abapcache.mapping.CacheMessageMappings.serialize(CacheMessageMappings.java:237) at com.sap.aii.ibdir.server.abapcache.CacheRefreshRequest.addContent(CacheRefreshRequest.java:573) at com.sap.aii.ibdir.server.abapcache.CacheRefreshRequest.processHTTPRequest(CacheRefreshRequest.java:265) at com.sap.aii.ibdir.server.abapcache.CacheRefreshRequest.handleHTTPRequest(CacheRefreshRequest.java:168) at com.sap.aii.ibdir.server.abapcache.HmiMethod_CacheRefresh.process(HmiMethod_CacheRefresh.java:89) at com.sap.aii.utilxi.hmis.server.HmisServiceImpl.invokeMethod(HmisServiceImpl.java:139) at com.sap.aii.utilxi.hmis.server.HmisServer.process(HmisServer.java:224) at com.sap.aii.utilxi.hmis.sbeans.HmisBeanImpl.process(HmisBeanImpl.java:105) at sun.reflect.GeneratedMethodAccessor774.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.sap.engine.services.ejb3.runtime.impl.RequestInvocationContext.proceedFinal(RequestInvocationContext.java:47) at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:166) at com.sap.engine.services.ejb3.runtime.impl.Interceptors_StatesTransition.invoke(Interceptors_StatesTransition.java:19) at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179) at com.sap.engine.services.ejb3.runtime.impl.Interceptors_Resource.invoke(Interceptors_Resource.java:50) at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179) at com.sap.engine.services.ejb3.runtime.impl.Interceptors_Transaction.doWorkWithAttribute(Interceptors_Transaction.java:37) at com.sap.engine.services.ejb3.runtime.impl.Interceptors_Transaction.invoke(Interceptors_Transaction.java:21) at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179) at com.sap.engine.services.ejb3.runtime.impl.Interceptors_MethodRetry.invoke(Interceptors_MethodRetry.java:46) at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179) at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:191) at com.sap.engine.services.ejb3.runtime.impl.Interceptors_StatelessInstanceGetter.invoke(Interceptors_StatelessInstanceGetter.java:23) at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179) at com.sap.engine.services.ejb3.runtime.impl.Interceptors_SecurityCheck.invoke(Interceptors_SecurityCheck.java:25) at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179) at com.sap.engine.services.ejb3.runtime.impl.Interceptors_ExceptionTracer.invoke(Interceptors_ExceptionTracer.java:17) at com.sap.engine.services.ejb3.runtime.impl.AbstractInvocationContext.proceed(AbstractInvocationContext.java:179) at com.sap.engine.services.ejb3.runtime.impl.DefaultInvocationChainsManager.startChain(DefaultInvocationChainsManager.java:138) at com.sap.engine.services.ejb3.runtime.impl.DefaultEJBProxyInvocationHandler.invoke(DefaultEJBProxyInvocationHandler.java:172) at com.sap.engine.services.ejb3.runtime.impl.DefaultEJBProxyInvocationHandler.invoke(DefaultEJBProxyInvocationHandler.java:99) at com.sun.proxy.$Proxy1412.process(Unknown Source) at com.sap.aii.utilxi.hmis.web.HmisServletImpl.processRequestByHmiServer(HmisServletImpl.java:365) at com.sap.aii.utilxi.hmis.web.HmisServletImpl.processRequestByHmiServer(HmisServletImpl.java:272) at com.sap.aii.utilxi.hmis.web.workers.HmisInternalClient.doWork(HmisInternalClient.java:70) at com.sap.aii.utilxi.hmis.web.HmisServletImpl.doWork(HmisServletImpl.java:571) at com.sap.aii.utilxi.hmis.web.HmisServletImpl.doPost(HmisServletImpl.java:712) at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) at com.sap.engine.services.servlets_jsp.server.runtime.FilterChainImpl.runServlet(FilterChainImpl.java:202) at com.sap.engine.services.servlets_jsp.server.runtime.FilterChainImpl.doFilter(FilterChainImpl.java:103) at com.sap.engine.services.servlets_jsp.server.servlet.AuthenticationFilter.doFilter(AuthenticationFilter.java:126) at com.sap.engine.services.servlets_jsp.server.runtime.FilterChainImpl.doFilter(FilterChainImpl.java:79) at com.sap.xsrf.filter.XSRFProtectorFilter.doFilter(XSRFProtectorFilter.java:62) at com.sap.engine.services.servlets_jsp.server.runtime.FilterChainImpl.doFilter(FilterChainImpl.java:79) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:441) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:210) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:441) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:430) at com.sap.engine.services.servlets_jsp.filters.DSRWebContainerFilter.process(DSRWebContainerFilter.java:38) at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78) at com.sap.engine.services.servlets_jsp.filters.ServletSelector.process(ServletSelector.java:81) at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78) at com.sap.engine.services.servlets_jsp.filters.ApplicationSelector.process(ApplicationSelector.java:278) at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78) at com.sap.engine.services.httpserver.filters.WebContainerInvoker.process(WebContainerInvoker.java:81) at com.sap.engine.services.httpserver.chain.HostFilter.process(HostFilter.java:9) at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78) at com.sap.engine.services.httpserver.filters.ResponseLogWriter.process(ResponseLogWriter.java:60) at com.sap.engine.services.httpserver.chain.HostFilter.process(HostFilter.java:9) at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78) at com.sap.engine.services.httpserver.filters.DefineHostFilter.process(DefineHostFilter.java:27) at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12) at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78) at com.sap.engine.services.httpserver.filters.MonitoringFilter.process(MonitoringFilter.java:29) at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12) at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78) at com.sap.engine.services.httpserver.filters.SessionSizeFilter.process(SessionSizeFilter.java:26) at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12) at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78) at com.sap.engine.services.httpserver.filters.MemoryStatisticFilter.process(MemoryStatisticFilter.java:57) at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12) at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78) at com.sap.engine.services.httpserver.filters.DSRHttpFilter.process(DSRHttpFilter.java:43) at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12) at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78) at com.sap.engine.services.httpserver.server.Processor.chainedRequest(Processor.java:475) at com.sap.engine.services.httpserver.server.Processor$FCAProcessorThread.process(Processor.java:269) at com.sap.engine.services.httpserver.server.rcm.RequestProcessorThread.run(RequestProcessorThread.java:56) at com.sap.engine.core.thread.execution.Executable.run(Executable.java:122) at com.sap.engine.core.thread.execution.Executable.run(Executable.java:101) at com.sap.engine.core.thread.execution.CentralExecutor$SingleThread.run(CentralExecutor.java:328)

[Andrzej_Filusz]

Hi Osman,

Which version do you use?

There are notes about a such problem, for example:

1802317 - CPA cache refresh fails with NPE

Please check your patch level.

Regards,

Andrzej

[Former Member]

Hi Andzej

We are using PO 7.4 version. The note that you have mentioned is for 7.11