matteodg created NETBEANS-4037:
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Summary: Debugger slow - taken profiler snapshots
Key: NETBEANS-4037
URL: https://issues.apache.org/jira/browse/NETBEANS-4037
Project: NetBeans
Issue Type: Bug
Components: debugger - Java
Affects Versions: 11.2, 11.1, 8.2, 11.3
Reporter: matteodg
Fix For: 12.0
Attachments:
org.netbeans.modules.debugger.jpda.ui.SourcePath.annotate.npss,
org.netbeans.modules.debugger.jpda.ui.SourcePath.getURL.npss
We have a pretty big NetBeans Platform Application (~180 modules and 5 suites)
and when the debugger reaches the first breakpoint it got stuck: the tabs
Debugging, Variables, Breakpoints, etc. are all with a "Please wait..." node
and with the NetBeans sampler I took a few snapshots highlighting it is
spending a lot of time on calls like:
* {{org.netbeans.modules.debugger.jpda.ui.SourcePath.getURL()}}
* {{org.netbeans.modules.debugger.jpda.ui.SourcePath.annotate()}}
which at the end boil down to a lot of calls like:
* java.util.concurrent.CopyOnWriteArrayList.remove()
* java.io.File.isFile()
Attached the snapshots.
Then if I press Continue the debugger remain stuck: now Pause and Continue
buttons in the toolbar are disabled...
I kept close and restarting NetBeans but no luck... I remember got this
behavior even with NB 8.2, sometimes though it goes through and I'm able to
debug, but very rarely!
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