[9] Review request for 8166594: Taskbar.setWindowProgressValue() spec does not specify expected visual behavior of setWindowProgressValue()

[Alexander Zvegintsev]

Hello,

please review the fix

http://cr.openjdk.java.net/~azvegint/jdk/9/8166594/00/

for the issue

https://bugs.openjdk.java.net/browse/JDK-8166594


It also fixes two issues to conform the documentation:

setting value below 0 doesn't disable progress indication

switching from indeterminate to normal state has no effect

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Thanks,
Alexander.