[infinispan-issues] [JBoss JIRA] (ISPN-7238) Reduce number of CompletableFuture allocations during async invocation

Reduce number of CompletableFuture allocations during async invocation ---------------------------------------------------------------------- Key: ISPN-7238 URL: https://issues.jboss.org/browse/ISPN-7238 Project: Infinispan Issue Type: Task Components: Core Reporter: Dan Berindei Assignee: Dan Berindei Fix For: 9.0.0.Beta2, 9.0.0.Final The current asynchronous invocations allocate a new {{CompletableFuture}} instance (plus a {{UniHandle}}, and a {{ComposedAsyncInvocationStage}}) for every interceptor that calls {{compose()}} or the other {{InvocationState}} methods that add a callback. We can reduce this by having a list of handlers in each invocation stage, and only creating a new {{CompletableFuture}} when we need to change the {{command}}.