Runnable execution with DistributedExecutor fails for REPL_SYNC mode

Hi,

after the update from infinispan master, the org.infinispan.distexec.ReplSyncDistributedExecutorTest.testRunnableInvocation() fails periodically.

The failure message is:
testRunnableInvocation
"java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: Failover execution failed at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.innerGet(DefaultExecutorService.java:872) at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.get(DefaultExecutorService.java:839) at org.infinispan.distexec.DistributedExecutorTest.testRunnableInvocation(DistributedExecutorTest.java:126) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.util.concurrent.ExecutionException: Failover execution failed at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.failoverExecution(DefaultExecutorService.java:896) at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.innerGet(DefaultExecutorService.java:870) ... 23 more Caused by: java.lang.Exception: Failover execution failed ... 25 more Caused by: java.util.concurrent.ExecutionException: Failover execution failed at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.failoverExecution(DefaultExecutorService.java:893) ... 24 more Caused by: java.lang.Exception: Failover execution failed ... 25 more Caused by: java.util.concurrent.ExecutionException: java.lang.IllegalStateException: Invalid response

{ReplSyncDistributedExecutorTest-NodeB-37961=null} at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.retrieveResult(DefaultExecutorService.java:946) at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.innerGet(DefaultExecutorService.java:864) ... 23 more Caused by: java.lang.IllegalStateException: Invalid response {ReplSyncDistributedExecutorTest-NodeB-37961=null}

... 25 more ... Removed 16 stack frames
java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: Failover execution failed at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.innerGet(DefaultExecutorService.java:872) at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.get(DefaultExecutorService.java:839) at org.infinispan.distexec.DistributedExecutorTest.testRunnableInvocation(DistributedExecutorTest.java:126) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:80) at org.testng.internal.Invoker.invokeMethod(Invoker.java:715) at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:907) at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1237) at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127) at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111) at org.testng.TestRunner.privateRun(TestRunner.java:767) at org.testng.TestRunner.run(TestRunner.java:617) at org.testng.SuiteRunner.runTest(SuiteRunner.java:334) at org.testng.SuiteRunner.access$000(SuiteRunner.java:37) at org.testng.SuiteRunner$SuiteWorker.run(SuiteRunner.java:368) at org.testng.internal.thread.ThreadUtil$2.call(ThreadUtil.java:64) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.util.concurrent.ExecutionException: Failover execution failed at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.failoverExecution(DefaultExecutorService.java:896) at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.innerGet(DefaultExecutorService.java:870) ... 23 more Caused by: java.lang.Exception: Failover execution failed ... 25 more Caused by: java.util.concurrent.ExecutionException: Failover execution failed at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.failoverExecution(DefaultExecutorService.java:893) ... 24 more Caused by: java.lang.Exception: Failover execution failed ... 25 more Caused by: java.util.concurrent.ExecutionException: java.lang.IllegalStateException: Invalid response

{ReplSyncDistributedExecutorTest-NodeB-37961=null} at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.retrieveResult(DefaultExecutorService.java:946) at org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.innerGet(DefaultExecutorService.java:864) ... 23 more Caused by: java.lang.IllegalStateException: Invalid response {ReplSyncDistributedExecutorTest-NodeB-37961=null}

... 25 more "
org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.innerGet(DefaultExecutorService.java:872)
org.infinispan.distexec.DefaultExecutorService$DistributedTaskPart.get(DefaultExecutorService.java:839)
org.infinispan.distexec.DistributedExecutorTest.testRunnableInvocation(DistributedExecutorTest.java:126)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:601)
org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:80)
org.testng.internal.Invoker.invokeMethod(Invoker.java:715)
org.testng.internal.Invoker.invokeTestMethod(Invoker.java:907)
org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1237)
org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
org.testng.TestRunner.privateRun(TestRunner.java:767)
org.testng.TestRunner.run(TestRunner.java:617)
org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
org.testng.SuiteRunner.access$000(SuiteRunner.java:37)
org.testng.SuiteRunner$SuiteWorker.run(SuiteRunner.java:368)
org.testng.internal.thread.ThreadUtil$2.call(ThreadUtil.java:64)
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
java.util.concurrent.FutureTask.run(FutureTask.java:166)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
java.lang.Thread.run(Thread.java:722)

Best regards,
Anna.