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Home » Modeling » TMF (Xtext) » log4j Error(getting log4j not found warring??????)
log4j Error [message #703193] Wed, 27 July 2011 09:21 Go to next message
irfan is currently offline irfan Friend
Messages: 16
Registered: July 2011
Junior Member
Hi,
i have been getting this two warning:
log4j:WARN No appenders could be found for logger (org.eclipse.xtext.ui.internal.Activator).
log4j:WARN Please initialize the log4j system properly.


and when a launch the editor i get java memory heap error also....
the same error is been filed as bug here:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=344973
but there is no confirmation from the xtext team whether its a bug or not?
so is it a bug or there is solution for it available.

thanks in advance
Irfan

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Re: log4j Error [message #703698 is a reply to message #703193] Wed, 27 July 2011 20:45 Go to previous messageGo to next message
Christian Dietrich is currently offline Christian DietrichFriend
Messages: 13887
Registered: July 2009
Senior Member
Hi,

i don't thing the heap problem and the warning are connected,
to solve the memory problem i set -XX:PermSize=128m in the vmargs of the launch config.

~Christian

Need professional support for Xtext, Xpand, EMF?
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Re: log4j Error [message #704067 is a reply to message #703698] Thu, 28 July 2011 08:43 Go to previous messageGo to next message
irfan is currently offline irfan Friend
Messages: 16
Registered: July 2011
Junior Member
Hi christian,
the memory heap error is gone but now i am getting this error
log4j:WARN No appenders could be found for logger (org.eclipse.xtext.ui.internal.Activator).
log4j:WARN Please initialize the log4j system properly.
!SESSION 2011-07-28 10:21:07.640 -----------------------------------------------
eclipse.buildId=M20110210-1200
java.version=1.6.0_25
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Framework arguments:  -product org.eclipse.platform.ide
Command-line arguments:  -product org.eclipse.platform.ide -data C:\irfan\NewViz\runconf -dev file:C:/irfan/NewViz/.metadata/.plugins/org.eclipse.pde.core/Eclipse Application/dev.properties -os win32 -ws win32 -arch x86 -consoleLog

!ENTRY org.eclipse.jdt.ui 4 10001 2011-07-28 10:32:26.281
!MESSAGE Internal Error
!STACK 1
org.eclipse.jdt.internal.ui.JavaUIException: Problems reading information from XML 'QualifiedTypeNameHistory.xml'
	at org.eclipse.jdt.internal.corext.util.History.createException(History.java:71)
	at org.eclipse.jdt.internal.corext.util.History.load(History.java:259)
	at org.eclipse.jdt.internal.corext.util.History.load(History.java:167)
	at org.eclipse.jdt.internal.corext.util.QualifiedTypeNameHistory.<init>(QualifiedTypeNameHistory.java:33)
	at org.eclipse.jdt.internal.corext.util.QualifiedTypeNameHistory.getDefault(QualifiedTypeNameHistory.java:26)
	at org.eclipse.jdt.internal.ui.JavaPlugin.stop(JavaPlugin.java:611)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:843)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.stop(BundleContextImpl.java:836)
	at org.eclipse.osgi.framework.internal.core.BundleHost.stopWorker(BundleHost.java:501)
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.suspend(AbstractBundle.java:550)
	at org.eclipse.osgi.framework.internal.core.Framework.suspendBundle(Framework.java:1097)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.decFWSL(StartLevelManager.java:597)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:257)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.shutdown(StartLevelManager.java:215)
	at org.eclipse.osgi.framework.internal.core.InternalSystemBundle.suspend(InternalSystemBundle.java:266)
	at org.eclipse.osgi.framework.internal.core.Framework.shutdown(Framework.java:690)
	at org.eclipse.osgi.framework.internal.core.Framework.close(Framework.java:588)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.shutdown(EclipseStarter.java:415)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:198)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1408)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1384)
Caused by: org.xml.sax.SAXParseException: Premature end of file.
	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)
	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:174)
	at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:388)
	at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1414)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:1059)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
	at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:235)
	at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:284)
	at org.eclipse.jdt.internal.corext.util.History.load(History.java:257)
	... 26 more
!SUBENTRY 1 org.eclipse.jdt.ui 4 4 2011-07-28 10:32:26.281
!MESSAGE Problems reading information from XML 'QualifiedTypeNameHistory.xml'
!STACK 0
org.xml.sax.SAXParseException: Premature end of file.
	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)
	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:174)
	at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:388)
	at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1414)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:1059)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
	at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:235)
	at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:284)
	at org.eclipse.jdt.internal.corext.util.History.load(History.java:257)
	at org.eclipse.jdt.internal.corext.util.History.load(History.java:167)
	at org.eclipse.jdt.internal.corext.util.QualifiedTypeNameHistory.<init>(QualifiedTypeNameHistory.java:33)
	at org.eclipse.jdt.internal.corext.util.QualifiedTypeNameHistory.getDefault(QualifiedTypeNameHistory.java:26)
	at org.eclipse.jdt.internal.ui.JavaPlugin.stop(JavaPlugin.java:611)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:843)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.stop(BundleContextImpl.java:836)
	at org.eclipse.osgi.framework.internal.core.BundleHost.stopWorker(BundleHost.java:501)
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.suspend(AbstractBundle.java:550)
	at org.eclipse.osgi.framework.internal.core.Framework.suspendBundle(Framework.java:1097)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.decFWSL(StartLevelManager.java:597)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:257)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.shutdown(StartLevelManager.java:215)
	at org.eclipse.osgi.framework.internal.core.InternalSystemBundle.suspend(InternalSystemBundle.java:266)
	at org.eclipse.osgi.framework.internal.core.Framework.shutdown(Framework.java:690)
	at org.eclipse.osgi.framework.internal.core.Framework.close(Framework.java:588)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.shutdown(EclipseStarter.java:415)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:198)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1408)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1384)
[Fatal Error] :1:1: Premature end of file.

!ENTRY org.eclipse.wst.jsdt.ui 4 10001 2011-07-28 10:32:26.328
!MESSAGE Internal Error
!STACK 1
org.eclipse.wst.jsdt.internal.ui.JavaUIException: Problems reading information from XML 'QualifiedTypeNameHistory.xml'
	at org.eclipse.wst.jsdt.internal.corext.util.History.createException(History.java:65)
	at org.eclipse.wst.jsdt.internal.corext.util.History.load(History.java:251)
	at org.eclipse.wst.jsdt.internal.corext.util.History.load(History.java:161)
	at org.eclipse.wst.jsdt.internal.corext.util.QualifiedTypeNameHistory.<init>(QualifiedTypeNameHistory.java:33)
	at org.eclipse.wst.jsdt.internal.corext.util.QualifiedTypeNameHistory.getDefault(QualifiedTypeNameHistory.java:26)
	at org.eclipse.wst.jsdt.internal.ui.JavaScriptPlugin.stop(JavaScriptPlugin.java:566)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:843)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.stop(BundleContextImpl.java:836)
	at org.eclipse.osgi.framework.internal.core.BundleHost.stopWorker(BundleHost.java:501)
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.suspend(AbstractBundle.java:550)
	at org.eclipse.osgi.framework.internal.core.Framework.suspendBundle(Framework.java:1097)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.decFWSL(StartLevelManager.java:597)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:257)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.shutdown(StartLevelManager.java:215)
	at org.eclipse.osgi.framework.internal.core.InternalSystemBundle.suspend(InternalSystemBundle.java:266)
	at org.eclipse.osgi.framework.internal.core.Framework.shutdown(Framework.java:690)
	at org.eclipse.osgi.framework.internal.core.Framework.close(Framework.java:588)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.shutdown(EclipseStarter.java:415)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:198)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1408)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1384)
Caused by: org.xml.sax.SAXParseException: Premature end of file.
	at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:249)
	at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:284)
	at org.eclipse.wst.jsdt.internal.corext.util.History.load(History.java:249)
	... 26 more
!SUBENTRY 1 org.eclipse.wst.jsdt.ui 4 4 2011-07-28 10:32:26.328
!MESSAGE Problems reading information from XML 'QualifiedTypeNameHistory.xml'
!STACK 0
org.xml.sax.SAXParseException: Premature end of file.
	at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:249)
	at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:284)
	at org.eclipse.wst.jsdt.internal.corext.util.History.load(History.java:249)
	at org.eclipse.wst.jsdt.internal.corext.util.History.load(History.java:161)
	at org.eclipse.wst.jsdt.internal.corext.util.QualifiedTypeNameHistory.<init>(QualifiedTypeNameHistory.java:33)
	at org.eclipse.wst.jsdt.internal.corext.util.QualifiedTypeNameHistory.getDefault(QualifiedTypeNameHistory.java:26)
	at org.eclipse.wst.jsdt.internal.ui.JavaScriptPlugin.stop(JavaScriptPlugin.java:566)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:843)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.stop(BundleContextImpl.java:836)
	at org.eclipse.osgi.framework.internal.core.BundleHost.stopWorker(BundleHost.java:501)
	at org.eclipse.osgi.framework.internal.core.AbstractBundle.suspend(AbstractBundle.java:550)
	at org.eclipse.osgi.framework.internal.core.Framework.suspendBundle(Framework.java:1097)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.decFWSL(StartLevelManager.java:597)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:257)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.shutdown(StartLevelManager.java:215)
	at org.eclipse.osgi.framework.internal.core.InternalSystemBundle.suspend(InternalSystemBundle.java:266)
	at org.eclipse.osgi.framework.internal.core.Framework.shutdown(Framework.java:690)
	at org.eclipse.osgi.framework.internal.core.Framework.close(Framework.java:588)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.shutdown(EclipseStarter.java:415)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:198)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1408)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1384)

and the warning as well
thanks
irfan

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Re: log4j Error [message #704077 is a reply to message #704067] Thu, 28 July 2011 08:50 Go to previous messageGo to next message
Christian Dietrich is currently offline Christian DietrichFriend
Messages: 13887
Registered: July 2009
Senior Member
HI,

i don't see this error connected to Xtext at all

~Christian

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: log4j Error [message #704084 is a reply to message #704077] Thu, 28 July 2011 09:02 Go to previous message
irfan is currently offline irfan Friend
Messages: 16
Registered: July 2011
Junior Member
Hi,
But this error started coming only after i have updated the xtext,in the previous version of xtext the same grammar was working fine,but i came across the bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=349992,so i have to update the xtext and that's when i started getting the warning and error.....
thanks
irfan

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