RFR: 8281117: Add regression test for JDK-8280587

[Emanuel Peter]

Recently, bug [JDK-8280600](https://bugs.openjdk.java.net/browse/JDK-8280600) was fixed, see [PR](https://github.com/openjdk/jdk/pull/7307).
[JDK-8280587](https://bugs.openjdk.java.net/browse/JDK-8280587) has been detected as a duplicate bug.
However, [JDK-8280587](https://bugs.openjdk.java.net/browse/JDK-8280587) came with a differen reported test which failed with a different assert.
Therefore, I added this additional test as a second regression test.

I ran this test to check that it passes successfully.

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Commit messages:
 - fixed copyright
 - 8281117: Add regression test for JDK-8280587

Changes: https://git.openjdk.java.net/jdk/pull/7323/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7323&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8281117
  Stats: 54 lines in 1 file changed: 54 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7323.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7323/head:pull/7323

PR: https://git.openjdk.java.net/jdk/pull/7323