RFR: 8305714 : Add an extra test for JDK-8292755 [v4]

[Weibing Xiao]

> Add a testing case for undefined classes in Java JShell to make sure JShell does not crash when an undefined class is used.
> 
> This test was passed for Linux, MacOS, and Windows by mach5 build and test in Oracle.
> 
> Reviewer: @coffeys @lahodaj

Weibing Xiao has updated the pull request incrementally with one additional commit since the last revision:

  Revert "add an empty to see if remote repo got updated"
  
  This reverts commit 36e72a6f3b63813cb4fd8cce94ca6571415c7093.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/13719/files
  - new: https://git.openjdk.org/jdk/pull/13719/files/36e72a6f..c83caa98

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13719&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13719&range=02-03

  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/13719.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13719/head:pull/13719

PR: https://git.openjdk.org/jdk/pull/13719