[jdk11u-dev] RFR: 8273634: [TEST_BUG] Improve javax/swing/text/ParagraphView/6364882/bug6364882.java

[Goetz Lindenmaier]

I backport this for parity with 11.0.15-oracle.

Follow up 8274465 is needed.

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Commit messages:
 - Backport 67e52a3078b0e7e522297c6008f5ac3792937c6a

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/753/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=753&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8273634
  Stats: 239 lines in 1 file changed: 239 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/753.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/753/head:pull/753

PR: https://git.openjdk.java.net/jdk11u-dev/pull/753