RFR: JDK-8295756 Improve NonLocalRegistry Manual Test Process [v2]

[Bill Huang]

> The current non local registry tests require a manual process that runs rmiregitrty on a different machine and changes the -Dregistry.host property in the source before running the tests on the local machine. This task is created to improve this manual process and provide a clearer instruction to the test engineer about the test requirement. 
> 
> Tests include: 
> java/rmi/registry/nonLocalRegistry/NonLocalSkeletonTest.java 
> java/rmi/registry/nonLocalRegistry/NonLocalRegistryTest.java 
> javax/management/remote/nonLocalAccess/NonLocalJMXRemoteTest.java

Bill Huang has updated the pull request incrementally with one additional commit since the last revision:

  Updated test instruction messages.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/10825/files
  - new: https://git.openjdk.org/jdk/pull/10825/files/a190fc71..a61d56e4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10825&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10825&range=00-01

  Stats: 6 lines in 2 files changed: 3 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/10825.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10825/head:pull/10825

PR: https://git.openjdk.org/jdk/pull/10825