RFR: JDK-8183372 : Refactor java/lang/Class shell tests to java [v3]

[Mahendra Chhipa]

> https://bugs.openjdk.java.net/browse/JDK-8183372

Mahendra Chhipa has updated the pull request incrementally with one additional commit since the last revision:

  Implemented the review comments.

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2170/files
  - new: https://git.openjdk.java.net/jdk/pull/2170/files/e664bd73..9517404b

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2170&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2170&range=01-02

  Stats: 226 lines in 3 files changed: 64 ins; 132 del; 30 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2170.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2170/head:pull/2170

PR: https://git.openjdk.java.net/jdk/pull/2170