RFR: JDK-8300205: Swing test bug8078268 make latch timeout configurable

Mon Jan 16 15:26:57 UTC 2023

The test javax/swing/text/html/parser/Parser/8078268/bug8078268.java has a latch timeout that is currently fix but should better be configurable to better deal with slow test infrastructures.

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Commit messages:
 - JDK-8300205

Changes: https://git.openjdk.org/jdk/pull/12011/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12011&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8300205
  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/12011.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12011/head:pull/12011

PR: https://git.openjdk.org/jdk/pull/12011