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https://issues.apache.org/jira/browse/NETBEANS-1898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16794611#comment-16794611
 ] 

Laszlo Kishalmi commented on NETBEANS-1898:
-------------------------------------------

You might seen a manifestation on NETBEANS-1123

> ide unresponsive / process not exiting / OutOfMemoryError: GC overhead limit 
> exceeded
> -------------------------------------------------------------------------------------
>
>                 Key: NETBEANS-1898
>                 URL: https://issues.apache.org/jira/browse/NETBEANS-1898
>             Project: NetBeans
>          Issue Type: Bug
>    Affects Versions: 10.0
>         Environment: windows 10 1809, java 1.8.0_181
>            Reporter: patrick
>            Priority: Critical
>
> <record>
>   <date>2019-01-07T04:18:36</date>
>   <millis>1546831116007</millis>
>   <sequence>2928</sequence>
>   <logger>org.openide.util.WeakListenerImpl</logger>
>   <level>900</level>
>   <thread>12</thread>
>   <message>Problem encountered while calling class 
> org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj.removeFileChangeListener(public
>  final void 
> org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.removeFileChangeListener(org.openide.filesystems.FileChangeListener))
>  on C:\Users\bendorf\AppData\Local\Temp\wctB860.tmp@70160217:1bebdd87[invalid]
> org.openide.util.WeakListenerImpl$ProxyListener[null[interface 
> org.openide.filesystems.FileChangeListener]</message>
>   
> <param>C:\Users\bendorf\AppData\Roaming\NetBeans\10.0\var\log\heapdump.hprof</param>
>   <exception>
>     <message>java.lang.reflect.InvocationTargetException</message>
>     <frame>
>       <class>sun.reflect.GeneratedMethodAccessor177</class>
>       <method>invoke</method>
>       <file></file>
>     </frame>
>     <frame>
>       <class>sun.reflect.DelegatingMethodAccessorImpl</class>
>       <method>invoke</method>
>       <line>43</line>
>       <file>${java.home}lib/rt.jar</file>
>     </frame>
>     <frame>
>       <class>java.lang.reflect.Method</class>
>       <method>invoke</method>
>       <line>498</line>
>       <file>${java.home}lib/rt.jar</file>
>     </frame>
>     <frame>
>       <class>org.openide.util.WeakListenerImpl$ListenerReference</class>
>       <method>run</method>
>       <line>619</line>
>       <file>${netbeans.home}lib/org-openide-util.jar</file>
>     </frame>
>     <frame>
>       <class>org.openide.util.lookup.implspi.ActiveQueue$Daemon</class>
>       <method>run</method>
>       <line>116</line>
>       <file>${netbeans.home}lib/org-openide-util-lookup.jar</file>
>     </frame>
>   </exception>
>   <exception>
>    <message>java.lang.OutOfMemoryError: GC overhead limit exceeded</message>
>     <frame>
>       <class>org.openide.util.CharSequences$ByteBasedSequence</class>
>       <method>toChars</method>
>       <line>1467</line>
>       <file>${netbeans.home}lib/org-openide-util.jar</file>
>     </frame>
>     <frame>
>       <class>org.openide.util.CharSequences$ByteBasedSequence</class>
>       <method>toString</method>
>       <line>1461</line>
>       <file>${netbeans.home}lib/org-openide-util.jar</file>
>     </frame>
>     <frame>
>       <class>org.netbeans.modules.masterfs.filebasedfs.naming.FileName</class>
>       <method>getName</method>
>       <line>89</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       <class>org.netbeans.modules.masterfs.filebasedfs.naming.FileName</class>
>       <method>getFile</method>
>       <line>84</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj</class>
>       <method>refresh</method>
>       <line>870</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj</class>
>       <method>refresh</method>
>       <line>355</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj</class>
>       <method>refreshImpl</method>
>       <line>459</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj</class>
>       <method>refresh</method>
>       <line>868</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj</class>
>       <method>refresh</method>
>       <line>537</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       <class>org.openide.filesystems.FileObject</class>
>       <method>refresh</method>
>       <line>1194</line>
>       <file>${netbeans.home}core/org-openide-filesystems.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory$AsyncRefreshAtomicAction</class>
>       <method>run</method>
>       <line>885</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       <class>org.openide.filesystems.EventControl</class>
>       <method>runAtomicAction</method>
>       <line>102</line>
>       <file>${netbeans.home}core/org-openide-filesystems.jar</file>
>     </frame>
>     <frame>
>       <class>org.openide.filesystems.FileSystem</class>
>       <method>runAtomicAction</method>
>       <line>494</line>
>       <file>${netbeans.home}core/org-openide-filesystems.jar</file>
>     </frame>
>     <frame>
>       <class>org.openide.filesystems.FileUtil</class>
>       <method>runAtomicAction</method>
>       <line>396</line>
>       <file>${netbeans.home}core/org-openide-filesystems.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory</class>
>       <method>refreshFromGetter</method>
>       <line>893</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory</class>
>       <method>issueIfExist</method>
>       <line>300</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory</class>
>       <method>getFileObject</method>
>       <line>206</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj</class>
>       <method>computeChildren</method>
>       <line>168</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj</class>
>       <method>noFolderListeners</method>
>       <line>117</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj</class>
>       <method>noFolderListeners</method>
>       <line>70</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>     <frame>
>       
> <class>org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj</class>
>       <method>removeFileChangeListener</method>
>       <line>538</line>
>       <file>${netbeans.home}modules/org-netbeans-modules-masterfs.jar</file>
>     </frame>
>    <more>5</more>
>   </exception>
> </record>
> <record>
>   <date>2019-01-08T06:47:30</date>
>   <millis>1546926450335</millis>
>   <sequence>2301</sequence>
>   <level>700</level>
>   <thread>54</thread>
>   <message>UI_USER_CONFIGURATION</message>
>   <key>UI_USER_CONFIGURATION</key>
>   <catalog>org.netbeans.modules.uihandler.Bundle</catalog>
>   <param>Windows 10, 10.0, amd64</param>
>   <param>Java HotSpot(TM) 64-Bit Server VM, 25.181-b13, Java(TM) SE Runtime 
> Environment, 1.8.0_181-b13</param>
>   <param>Apache NetBeans IDE 10.0 (Build 
> incubator-netbeans-release-380-on-20181217)</param>
>   <param></param>
>   <param>OutOfMemoryError: GC overhead limit exceeded</param>
>   <param>after leaving netbeans open with 3 php projects and returning to 
> this workspace on the next day, the ide ist horribly unresponsive (mouse over 
> effects take about 4 seconds to appear, clicking menus and files is super 
> slow too). exiting NB (either via window close button or via menu) closes the 
> window, but netbeans keeps using cpu at a rate of 80% and ram usage 
> fluctuates between 1.2G and 1.35G. this goes on for at least 10 minutes, 
> after which i kill the process.</param>
>   <param>*********</param>
> </record>



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