RFR: 8209935: Test to cover CodeSource.getCodeSigners() [v5]

[Sibabrata Sahoo]

> A Test updated to cover the getCodeSigners.

Sibabrata Sahoo has updated the pull request incrementally with two additional commits since the last revision:

 - 8209935: Test to cover CodeSource.getCodeSigners()
 - 8209935: Test to cover CodeSource.getCodeSigners()

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Changes:
  - all: https://git.openjdk.org/jdk/pull/8286/files
  - new: https://git.openjdk.org/jdk/pull/8286/files/512cb615..a0c1d070

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8286&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8286&range=03-04

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/8286.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/8286/head:pull/8286

PR: https://git.openjdk.org/jdk/pull/8286