RFR: 8285397: JNI exception pending in CUPSfuncs.c:250 [v2]

[Phil Race]

> A tool checking for JNI errors complains that the call to JNU_NewStringPlatform(..)
> might throw an exception and subsequent JNI code isn't making sure of that.
> Clear the exception so the error handling code can do its thing.

Phil Race has updated the pull request incrementally with one additional commit since the last revision:

  8285399

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/8491/files
  - new: https://git.openjdk.java.net/jdk/pull/8491/files/d35677c6..a4c0f55d

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8491&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8491&range=00-01

  Stats: 15 lines in 1 file changed: 9 ins; 0 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8491.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8491/head:pull/8491

PR: https://git.openjdk.java.net/jdk/pull/8491