[jboss-jira] [JBoss JIRA] (JGRP-2338) RpcDispatcher: non-reflective method invocations

[Bela Ban (Jira)]

Bela Ban created JGRP-2338:
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             Summary: RpcDispatcher: non-reflective method invocations
                 Key: JGRP-2338
                 URL: https://issues.jboss.org/browse/JGRP-2338
             Project: JGroups
          Issue Type: Feature Request
            Reporter: Bela Ban
            Assignee: Bela Ban
             Fix For: 4.1.0


Running a native image produced by the GraalVM AOT (ahead-of-time) compiler prohibits the use of Java Reflection.
However, RpcDispatcher uses {{java.lang.reflect.Method}} to invoke remote method calls.

h4. Goal
Provide a mode (in {{MethodCall}}) which doesn't require a {{MethodLookup}} table but rather takes user-provided code (e.g. a lambda) to find and invoke the correct method.
This could be done by introducing an additional mode in {{MethodCall}} based on {{ID}} which calls the (user-provided) lambda to invoke a method. The lambda would read the arguments and invoke the method based on the received ID, then return the result.



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