Hi guys, I refreshed the engine from master several minutes ago and when I click to see storage tab I get 500 and there is this exception in server log: Thanks, Piotr 2015-06-09 12:32:21,884 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/ovirt-engine/webadmin]] (http--0_0_0_0_0_0_0_0-8080-3) Exception while dispatching incoming RPC call: com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract java.util.ArrayList org.ovirt.engine.ui.frontend.gwtservices.GenericApiGWTService.runMultipleQueries(java.util.ArrayList,java.util.ArrayList)' threw an unexpected exception: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at com.google.gwt.rpc.server.RPC.invokeAndStreamResponse(RPC.java:219) [gwt-servlet.jar:] at com.google.gwt.rpc.server.RpcServlet.processCall(RpcServlet.java:172) [gwt-servlet.jar:] at com.google.gwt.rpc.server.RpcServlet.processPost(RpcServlet.java:233) [gwt-servlet.jar:] at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) [gwt-servlet.jar:] at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] at org.jboss.weld.servlet.ConversationPropagationFilter.doFilter(ConversationPropagationFilter.java:62) [weld-core-1.1.5.AS71.Final.jar:2012-02-10 15:31] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] at org.ovirt.engine.core.utils.servlet.HeaderFilter.doFilter(HeaderFilter.java:94) [utils.jar:] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] at org.ovirt.engine.ui.frontend.server.gwt.GwtCachingFilter.doFilter(GwtCachingFilter.java:132) [frontend.jar:] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] at org.ovirt.engine.core.branding.BrandingFilter.doFilter(BrandingFilter.java:73) [branding.jar:] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] at org.ovirt.engine.core.utils.servlet.LocaleFilter.doFilter(LocaleFilter.java:65) [utils.jar:] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] at org.ovirt.engine.core.aaa.filters.SessionMgmtFilter.doFilter(SessionMgmtFilter.java:31) [aaa.jar:] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] at org.ovirt.engine.core.aaa.filters.LoginFilter.doFilter(LoginFilter.java:74) [aaa.jar:] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] at org.ovirt.engine.core.aaa.filters.NegotiationFilter.doFilter(NegotiationFilter.java:113) [aaa.jar:] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] at org.ovirt.engine.core.aaa.filters.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:90) [aaa.jar:] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] at org.ovirt.engine.core.aaa.filters.SessionValidationFilter.doFilter(SessionValidationFilter.java:73) [aaa.jar:] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489) [jbossweb-7.0.13.Final.jar:] at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final] at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:] at org.jboss.web.rewrite.RewriteValve.invoke(RewriteValve.java:466) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_79] Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at org.ovirt.engine.ui.frontend.server.gwt.hibernate.ReflectionUtils.get(ReflectionUtils.java:51) [frontend.jar:] at org.ovirt.engine.ui.frontend.server.gwt.hibernate.HibernateCleaner.doClean(HibernateCleaner.java:52) [frontend.jar:] at org.ovirt.engine.ui.frontend.server.gwt.hibernate.HibernateCleaner.processCollections(HibernateCleaner.java:76) [frontend.jar:] at org.ovirt.engine.ui.frontend.server.gwt.hibernate.HibernateCleaner.doClean(HibernateCleaner.java:49) [frontend.jar:] at org.ovirt.engine.ui.frontend.server.gwt.hibernate.HibernateCleaner.doClean(HibernateCleaner.java:26) [frontend.jar:] at org.ovirt.engine.ui.frontend.server.gwt.GenericApiGWTServiceImpl.runQuery(GenericApiGWTServiceImpl.java:58) [frontend.jar:] at org.ovirt.engine.ui.frontend.server.gwt.GenericApiGWTServiceImpl.runMultipleQueries(GenericApiGWTServiceImpl.java:92) [frontend.jar:] at sun.reflect.GeneratedMethodAccessor193.invoke(Unknown Source) [:1.7.0_79] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_79] at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_79] at com.google.gwt.rpc.server.RPC.invokeAndStreamResponse(RPC.java:196) [gwt-servlet.jar:] ... 51 more Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.GeneratedMethodAccessor184.invoke(Unknown Source) [:1.7.0_79] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_79] at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_79] at org.ovirt.engine.ui.frontend.server.gwt.hibernate.ReflectionUtils.get(ReflectionUtils.java:49) [frontend.jar:] ... 61 more Caused by: java.lang.NullPointerException at org.ovirt.engine.core.common.businessentities.StorageDomain.getWarningLowSpaceSize(StorageDomain.java:151) [common.jar:] ... 65 more