[jira] [Created] (NETBEANS-4037) Debugger slow - taken profiler snapshots

["matteodg (Jira)" <ji...@apache.org>]

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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