CancellationException is thrown in case if CompletableFuture task exits exceptionally ------------------------------------------------------------------------------------- Key: ISPN-6253 URL: https://issues.jboss.org/browse/ISPN-6253 Project: Infinispan Issue Type: Bug Components: Core Reporter: Anna Manukyan When the CompletableFuture runs on cluster and exits exceptionally, the real exception message is not visible. Instead CancellationException is shown, as given below: {code} java.util.concurrent.CancellationException at org.infinispan.client.hotrod.impl.protocol.Codec20.checkForErrorsInResponseStatus(Codec20.java:343) at org.infinispan.client.hotrod.impl.protocol.Codec20.readPartialHeader(Codec20.java:132) at org.infinispan.client.hotrod.impl.protocol.Codec20.readHeader(Codec20.java:118) at org.infinispan.client.hotrod.impl.operations.HotRodOperation.readHeaderAndValidate(HotRodOperation.java:56) at org.infinispan.client.hotrod.impl.operations.ExecuteOperation.executeOperation(ExecuteOperation.java:49) at org.infinispan.client.hotrod.impl.operations.RetryOnFailureOperation.execute(RetryOnFailureOperation.java:54) at org.infinispan.client.hotrod.impl.RemoteCacheImpl.execute(RemoteCacheImpl.java:703) at org.infinispan.server.test.task.DistributedServerTaskIT.shouldThrowExceptionInRemoteTasks(DistributedServerTaskIT.java:107) {code}