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Bug 177074 - 14s ProxyClassLoader blocked from org.ini4j.spi.ServiceFinder.loadLine()
Summary: 14s ProxyClassLoader blocked from org.ini4j.spi.ServiceFinder.loadLine()
Status: RESOLVED FIXED
Alias: None
Product: platform
Classification: Unclassified
Component: Module System (show other bugs)
Version: 6.x
Hardware: All All
: P3 normal (vote)
Assignee: Jaroslav Tulach
URL:
Keywords: PERFORMANCE
Depends on:
Blocks:
 
Reported: 2009-11-18 05:29 UTC by Eduardo.m Costa
Modified: 2011-06-12 18:24 UTC (History)
9 users (show)

See Also:
Issue Type: DEFECT
Exception Reporter: 162394

Attachments
nps snapshot (256.00 KB, application/nps)
2009-11-18 05:29 UTC, Eduardo.m Costa 		Details
nps snapshot (256.00 KB, application/nps)
2010-01-07 21:25 UTC, emiddio 		Details
nps snapshot (256.00 KB, application/nps)
2010-01-10 16:27 UTC, emiddio 		Details
nps snapshot (256.00 KB, application/nps)
2010-01-13 11:40 UTC, emiddio 		Details
nps snapshot (256.00 KB, application/nps)
2010-01-18 02:28 UTC, Exceptions Reporter 		Details
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Description Eduardo.m Costa 2009-11-18 05:29:13 UTC 
This issue was originally marked as duplicate of issue 172715, that is already resolved. This issue is still valid, so this seems to be another issue, but it might be related.

Build: NetBeans IDE Dev (Build 200911091156)
VM: Java HotSpot(TM) Client VM, 10.0-b19, Java(TM) SE Runtime Environment, 1.6.0_04-b12
OS: Windows XP, 5.1, x86

User Comments:
_m4c0_: * opening "Project Files" of a maven project
* catch: "scanning projects" is running


Maximum slowness yet reported was 6203 ms, average is 6203
Comment 1 Eduardo.m Costa 2009-11-18 05:29:19 UTC 
Created attachment 91239 [details]
nps snapshot
Comment 2 t_h 2009-11-18 07:53:57 UTC 
>5s in ProjectFIlesChildren.createNodes()
Comment 3 emiddio 2010-01-07 21:25:49 UTC 
Created attachment 93126 [details]
nps snapshot
Comment 4 emiddio 2010-01-10 16:27:50 UTC 
Created attachment 93158 [details]
nps snapshot
Comment 5 emiddio 2010-01-13 11:40:12 UTC 
Created attachment 93260 [details]
nps snapshot
Comment 6 Exceptions Reporter 2010-01-18 02:28:15 UTC 
Created attachment 93361 [details]
nps snapshot

I was lauching the IDE
Comment 7 Antonin Nebuzelsky 2010-07-30 15:17:41 UTC 
Reassigning to default owner.
Comment 8 Antonin Nebuzelsky 2010-11-03 13:14:09 UTC 
Detached 1/3 (24) of the reports to a separate report:
  http://statistics.netbeans.org/analytics/detail.do?id=173637
These show AWT thread blocked in expensive com.jaspersoft.ireport.JrxmlDataObject.<init>()
Comment 9 Antonin Nebuzelsky 2010-11-03 16:19:55 UTC 
Maven code not involved in the freezes in all the reports here.

All reports show AWT thread frozen somewhere in loaders, either waiting to enter synchronized code (in DataObjectPool.find() method) or waiting for another thread to finish (in FolderLookup.beforeLookup()). 

Reassigning the issue for further evaluation to Data Systems.
Comment 10 Jaroslav Tulach 2010-11-10 15:54:37 UTC 
Looking at the last attached nps file, the system is blocked when
org.ini4j.spi.ServiceFinder.loadLine()
tries to read some resources from systemclassloader. All other threads are then blocked by this long running request.
Comment 11 Jaroslav Tulach 2011-06-12 18:24:39 UTC 
The only 7.0xyz report
http://statistics.netbeans.org/exceptions/exception.do?id=434229
will be fixed by 8b479b68575f which was integrate to fix bug 199136.