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java.lang.NullPointerException: 	at org.pentaho.mantle.server.MantleServlet.getSolutionFileInfo(MantleServlet.java:422)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:527)	at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:164)	at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:265)	at org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:107)	at org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:72)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:124)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.acegisecurity.ui.switchuser.SwitchUserProcessingFilter.doFilter(SwitchUserProcessingFilter.java:341)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.pentaho.platform.web.http.security.SecurityStartupFilter.doFilter(SecurityStartupFilter.java:81)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.pentaho.platform.web.http.security.RequestParameterAuthenticationFilter.doFilter(RequestParameterAuthenticationFilter.java:164)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:174)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.acegisecurity.ui.logout.LogoutFilter.doFilter(LogoutFilter.java:110)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.pentaho.platform.web.http.security.HttpSessionReuseDetectionFilter.doFilter(HttpSessionReuseDetectionFilter.java:129)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.acegisecurity.wrapper.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:81)	at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)	at org.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java:149)	at org.acegisecurity.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:98)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)	at com.pentaho.ui.servlet.SystemStatusFilter.doFilter(SystemStatusFilter.java:43)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)	at org.pentaho.platform.web.http.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:113)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)	at java.lang.Thread.run(Unknown Source)