[HBASE-24451] Remove the HasThread because the related bug had been fixed since jdk7

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.3.0
• Component/s: util
• Hadoop Flags: Reviewed
• Assignee: Zheng Wang
• Reporter: Zheng Wang
• Created: 28/May/20 05:45
• Updated: 30/May/20 14:15
• Resolved: 29/May/20 12:31

Description

The HasThread was introduced as a wrapper of Thread to workaround a deadlock bug, and this bug had fixed since jdk7, so I think it is the time to remove it as we are using jdk8+.
 
Related links:
https://issues.apache.org/jira/browse/HBASE-4367
https://bugs.java.com/bugdatabase/view_bug.do?bug_id=6915621

Issue Links

• relates to: HBASE-4367 Deadlock in MemStore flusher due to JDK internally synchronizing on current thread
• links to: bug_id=6609468
• links to: GitHub Pull Request #1797