[infinispan-issues] [JBoss JIRA] (ISPN-6003) Reduce number of allocations

Reduce number of allocations ---------------------------- Key: ISPN-6003 URL: https://issues.jboss.org/browse/ISPN-6003 Project: Infinispan Issue Type: Task Components: Core, Server Reporter: Dan Berindei Assignee: Dan Berindei Labels: performance Fix For: 8.1.0.Final Profiling revealed some allocations that are easy to remove: * The HotRod operations factory stores a list of flags in a thread-local. The thread-local can be removed, and the flags can be stored in an {{int}}. * JGroupsTransport copies the list of members to check if a broadcast should be sent as a unicast, and the copy is then discarded. * ExtendedByteBuf could use {{Array.empty}} instead of {{Array[Byte]()}}. * DecoratedCache could avoid calling {{Arrays.asList()}}.