Cross site state transfer - NPE on consumer site when backup cache is not present --------------------------------------------------------------------------------- Key: ISPN-5061 URL: https://issues.jboss.org/browse/ISPN-5061 Project: Infinispan Issue Type: Bug Components: State Transfer Affects Versions: 7.1.0.Alpha1 Reporter: Matej Čimbora Assignee: Pedro Ruivo NPE detected on consumer site after invoking push operation on producer site. Occurs when corresponding cache does not exist on consumer site (either with the same name as the main cache or specified via <backup-for> option). Configuration: 2 sites, BRN (main), LON (backup) Producer site CLI: Unable to pushState to 'LON'. org.infinispan.commons.CacheException: Problems invoking command. Consumer site log: 11:18:45,245 WARN [org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher] (remote-thread--p3-t1) ISPN000071: Caught exception when handling command XSiteStateTransferControlCommand{control=START_RECEIVE, siteName='LON', statusOk=false, cacheName='lonCache'}: java.lang.NullPointerException at org.infinispan.xsite.BackupReceiverImpl.invokeRemotelyInLocalSite(BackupReceiverImpl.java:213) [infinispan-core.jar:7.1.0.Alpha1] at org.infinispan.xsite.BackupReceiverImpl.handleStateTransferControl(BackupReceiverImpl.java:90) [infinispan-core.jar:7.1.0.Alpha1] at org.infinispan.xsite.statetransfer.XSiteStateTransferControlCommand.performInLocalSite(XSiteStateTransferControlCommand.java:41) [infinispan-core.jar:7.1.0.Alpha1] at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher$3.run(CommandAwareRpcDispatcher.java:252) [infinispan-core.jar:7.1.0.Alpha1] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_60] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_60] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_60] 11:18:45,420 WARN [org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher] (remote-thread--p3-t1) ISPN000071: Caught exception when handling command XSiteStateTransferControlCommand{control=FINISH_RECEIVE, siteName='LON', statusOk=false, cacheName='lonCache'}: java.lang.NullPointerException at org.infinispan.xsite.BackupReceiverImpl.invokeRemotelyInLocalSite(BackupReceiverImpl.java:213) [infinispan-core.jar:7.1.0.Alpha1] at org.infinispan.xsite.BackupReceiverImpl.handleStateTransferControl(BackupReceiverImpl.java:90) [infinispan-core.jar:7.1.0.Alpha1] at org.infinispan.xsite.statetransfer.XSiteStateTransferControlCommand.performInLocalSite(XSiteStateTransferControlCommand.java:41) [infinispan-core.jar:7.1.0.Alpha1] at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher$3.run(CommandAwareRpcDispatcher.java:252) [infinispan-core.jar:7.1.0.Alpha1] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_60] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_60] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_60]