[infinispan-issues] [JBoss JIRA] Resolved: (ISPN-324) Cache.clear() raises a NPE if CacheMode is DIST_SYNC and NumOwners is set to 1

Cache.clear() raises a NPE if CacheMode is DIST_SYNC and NumOwners is set to 1 ------------------------------------------------------------------------------ Key: ISPN-324 URL: https://jira.jboss.org/jira/browse/ISPN-324 Project: Infinispan Issue Type: Bug Affects Versions: 4.0.0.CR3 Reporter: Marco Ferrante Assignee: Manik Surtani Fix For: 4.0.0.GA This fragment: GlobalConfiguration gc = GlobalConfiguration.getClusteredDefault(); Configuration config = new Configuration(); config.setCacheMode(Configuration.CacheMode.DIST_SYNC); config.setNumOwners(1); // no redundancy CacheManager cacheManager = new DefaultCacheManager(gc, config); Cache cache = cacheManager.getCache(); cache.put("key", "value"); cache.clear(); assert cache.isEmpty(); raises a NullPointerException at cache.clear() invokation. It works correctly both using other cache modes (LOCAL, REPL and INVALIDATION) or avoiding to set config.setNumOwners to 1. The stacktrace is: java.lang.NullPointerException at org.infinispan.interceptors.DistributionInterceptor.isSingleOwnerAndLocal(DistributionInterceptor.java:317) at org.infinispan.interceptors.DistributionInterceptor.handleWriteCommand(DistributionInterceptor.java:276) at org.infinispan.interceptors.DistributionInterceptor.visitClearCommand(DistributionInterceptor.java:180) at org.infinispan.commands.write.ClearCommand.acceptVisitor(ClearCommand.java:58) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118) at org.infinispan.interceptors.LockingInterceptor.visitClearCommand(LockingInterceptor.java:169) at org.infinispan.commands.write.ClearCommand.acceptVisitor(ClearCommand.java:58) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:118) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:132) ....