[jdk11u-dev] RFR: 8352302: Test sun/security/tools/jarsigner/TimestampCheck.java is failing

[Antonio Vieiro]

Clean backport of [JDK-8352561](https://bugs.openjdk.org/browse/JDK-8352561) that solves a problem with `TimestampCheck.java`.

All `test/jdk/sun/security` tests pass now:


==============================
Test summary
==============================
   TEST                                              TOTAL  PASS  FAIL ERROR   
   jtreg:test/jdk/sun/security                         659   659     0     0   
==============================
TEST SUCCESS

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

Commit messages:
 - Backport b2255b98f5122c3d26b822dac4597a54257ffcaf

Changes: https://git.openjdk.org/jdk11u-dev/pull/3017/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=3017&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8352302
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/3017.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/3017/head:pull/3017

PR: https://git.openjdk.org/jdk11u-dev/pull/3017