JDK-8175115 : Improve instrumentation of java/nio/file/WatchService/LotsOfEvents.java
- Type: Bug
- Component: core-libs
- Sub-Component: java.nio
- Affected Version: 9
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- Submitted: 2017-02-17
- Updated: 2023-07-25
- Resolved: 2017-02-24
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| JDK 10 | JDK 8 | JDK 9 |
|---|---|---|
10Fixed  |
8u391Fixed | 9 b159Fixed |
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Description
As per JDK-8174819, LotsOfEvents fails occasionally due to an insufficient number of file creation events having been received. This appears to occur only on OS X which uses the non-native PollingWatchService implementation which in theory could be less efficient than a WatchService which is based on a native file change notification mechanism. Add some instrumentation to attempt to detect whether the failure could be due to inefficiency in the polling implementation.
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