JDK-7073607 : EventDispatchThread.eventLog called improperly (eagerly formats messages)
  • Type: Bug
  • Component: client-libs
  • Sub-Component: java.awt
  • Affected Version: 7
  • Priority: P5
  • Status: Closed
  • Resolution: Duplicate
  • OS: linux
  • CPU: x86
  • Submitted: 2011-08-01
  • Updated: 2014-09-23
  • Resolved: 2014-09-23
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JDK 9
9Resolved
Related Reports
Duplicate :  
JDK-8010297 - Missing isLoggable() checks in logging code
Description
In EventDispatchThread.java in JDK 7, eventLog is used improperly - log messages are preformatted even when they are due to be discarded (the normal case). This wastes time and churns the heap.
Comments
- this is an issue reported against 7(7u), - there are now affected version 9 filed for this issue - 7u issues are transferred to Sustaining Nevertheless if someone have a report against 9 - please reopen and add affectedVersion 9 or 7u specific escalations might be reopen to Sustaining
10-08-2014
- this is an issue reported against 7(7u), - there are now affected version 9 filed for this issue - 7u issues are transferred to Sustaining Nevertheless if someone have a report against 9 - please reopen and add affectedVersion 9 or 7u specific escalations might be reopen to Sustaining
10-08-2014
EVALUATION The problem exists only for applications with turned on logging. This is not a production mode but development mode. By the way can you provide any measures that show how huge the impact comparing to a build with your changes?
04-08-2011
SUGGESTED FIX See attachment. (By the way, why not use plain java.util.logging.Logger here? Surely java.util.** classes are "more basic" in a modularity sense than AWT.)
01-08-2011
PUBLIC COMMENTS Noticed during https://netbeans.org/bugzilla/show_bug.cgi?id=200582 which perhaps involved some sort of event storm being created. Therefore most thread dumps showed EventDispatchThread busy in StringBuilder.append.
01-08-2011