[jdk11u-dev] RFR: 8214445: [test] java/net/URL/HandlerLoop has illegal reflective access

[Goetz Lindenmaier]

I backport this for parity with 11.0.19-oracle.

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

Commit messages:
 - Backport c03797a5d010568f8bded1f6561c7a98b4f82414

Changes: https://git.openjdk.org/jdk11u-dev/pull/1648/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1648&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8214445
  Stats: 17 lines in 1 file changed: 5 ins; 2 del; 10 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1648.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1648/head:pull/1648

PR: https://git.openjdk.org/jdk11u-dev/pull/1648