[jdk18] RFR: 8278233: [macos] tools/jpackage tests timeout due to /usr/bin/osascript

[Alexander Matveev]

This is regression from JDK-8276837. exec() was passing INFINITE_TIMEOUT instead of actual value of timeout variable. Execution of osascript was running without timeout and thus several tests timeout. Osascript hang during test execution is intermittent issue.

Also, removed IconTest.java and MultiNameTwoPhaseTest.java from ProblemList.txt.

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Commit messages:
 - 8278233: [macos] tools/jpackage tests timeout due to /usr/bin/osascript

Changes: https://git.openjdk.java.net/jdk18/pull/18/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk18&pr=18&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8278233
  Stats: 4 lines in 2 files changed: 0 ins; 3 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk18/pull/18.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk18 pull/18/head:pull/18

PR: https://git.openjdk.java.net/jdk18/pull/18