git: openjdk/jdk: 8289484: Cleanup unnecessary null comparison before instanceof check in java.rmi

[Andrey Turbanov]

Changeset: df063f7d
Author:    Andrey Turbanov <aturbanov at openjdk.org>
Date:      2022-07-04 20:21:11 +0000
URL:       https://git.openjdk.org/jdk/commit/df063f7db18a40ea7325fe608b3206a6dff812c1

8289484: Cleanup unnecessary null comparison before instanceof check in java.rmi

Reviewed-by: jpai, attila

! src/java.rmi/share/classes/java/rmi/MarshalledObject.java
! src/java.rmi/share/classes/sun/rmi/transport/LiveRef.java
! src/java.rmi/share/classes/sun/rmi/transport/tcp/TCPEndpoint.java