Subclasses of AbstractWriteKeyCommand don't marshal the Params params field --------------------------------------------------------------------------- Key: ISPN-6542 URL: https://issues.jboss.org/browse/ISPN-6542 Project: Infinispan Issue Type: Bug Components: Core Affects Versions: 8.2.1.Final Reporter: Krzysztof Sobolewski Assignee: Radim Vansa I'm attempting to use the Functional API, but I'm unable to because of an exception like this: java.util.concurrent.ExecutionException: org.infinispan.remoting.RemoteException: ISPN000217: Received exception from FunctionalCachestoreTest-NodeB-820, see cause for remote stack trace at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357) at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895) (...) Caused by: java.lang.NullPointerException at org.infinispan.interceptors.CacheWriterInterceptor.visitWriteCommand(CacheWriterInterceptor.java:233) at org.infinispan.interceptors.CacheWriterInterceptor.visitReadWriteKeyCommand(CacheWriterInterceptor.java:215) at org.infinispan.commands.functional.ReadWriteKeyCommand.acceptVisitor(ReadWriteKeyCommand.java:90) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.interceptors.CacheLoaderInterceptor.visitDataCommand(CacheLoaderInterceptor.java:190) at org.infinispan.interceptors.CacheLoaderInterceptor.visitReadWriteKeyCommand(CacheLoaderInterceptor.java:331) at org.infinispan.commands.functional.ReadWriteKeyCommand.acceptVisitor(ReadWriteKeyCommand.java:90) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.interceptors.EntryWrappingInterceptor.invokeNextAndApplyChanges(EntryWrappingInterceptor.java:496) at org.infinispan.interceptors.EntryWrappingInterceptor.setSkipRemoteGetsAndInvokeNextForDataCommand(EntryWrappingInterceptor.java:561) at org.infinispan.interceptors.EntryWrappingInterceptor.visitReadWriteKeyCommand(EntryWrappingInterceptor.java:379) at org.infinispan.commands.functional.ReadWriteKeyCommand.acceptVisitor(ReadWriteKeyCommand.java:90) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.interceptors.locking.AbstractLockingInterceptor.visitNonTxDataWriteCommand(AbstractLockingInterceptor.java:97) at org.infinispan.interceptors.locking.NonTransactionalLockingInterceptor.visitDataWriteCommand(NonTransactionalLockingInterceptor.java:41) at org.infinispan.interceptors.locking.AbstractLockingInterceptor.visitReadWriteKeyCommand(AbstractLockingInterceptor.java:160) at org.infinispan.commands.functional.ReadWriteKeyCommand.acceptVisitor(ReadWriteKeyCommand.java:90) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.statetransfer.StateTransferInterceptor.handleNonTxWriteCommand(StateTransferInterceptor.java:343) at org.infinispan.statetransfer.StateTransferInterceptor.handleWriteCommand(StateTransferInterceptor.java:281) at org.infinispan.statetransfer.StateTransferInterceptor.visitReadWriteKeyCommand(StateTransferInterceptor.java:204) at org.infinispan.commands.functional.ReadWriteKeyCommand.acceptVisitor(ReadWriteKeyCommand.java:90) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:113) at org.infinispan.commands.AbstractVisitor.visitReadWriteKeyCommand(AbstractVisitor.java:203) at org.infinispan.commands.functional.ReadWriteKeyCommand.acceptVisitor(ReadWriteKeyCommand.java:90) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:110) at org.infinispan.interceptors.InvocationContextInterceptor.handleDefault(InvocationContextInterceptor.java:79) at org.infinispan.commands.AbstractVisitor.visitReadWriteKeyCommand(AbstractVisitor.java:203) at org.infinispan.commands.functional.ReadWriteKeyCommand.acceptVisitor(ReadWriteKeyCommand.java:90) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:113) at org.infinispan.commands.AbstractVisitor.visitReadWriteKeyCommand(AbstractVisitor.java:203) at org.infinispan.commands.functional.ReadWriteKeyCommand.acceptVisitor(ReadWriteKeyCommand.java:90) at org.infinispan.interceptors.InterceptorChain.invoke(InterceptorChain.java:335) at org.infinispan.commands.remote.BaseRpcInvokingCommand.processVisitableCommand(BaseRpcInvokingCommand.java:43) at org.infinispan.commands.remote.SingleRpcCommand.perform(SingleRpcCommand.java:51) at org.infinispan.remoting.inboundhandler.BasePerCacheInboundInvocationHandler.invokePerform(BasePerCacheInboundInvocationHandler.java:92) at org.infinispan.remoting.inboundhandler.BaseBlockingRunnable.run(BaseBlockingRunnable.java:34) ... 3 more The line where the exception occurs is: Param<PersistenceMode> persistMode = command.getParams().get(PersistenceMode.ID); Turns out that command.getParams() returns null. Investigating further, it looks like the "params" field of ReadWriteKeyCommand is not marshaled; the receiver then unmarshals everythng except the "params" field, which remains null on the remote node, where the command fails.