[svgray]

Hi,

I’m having a problem with MyEclipse 5.5.1 hanging on Linux when I have the preferences window open. This reliably happens when I change a preference item and click OK, but frequently happens after just selecting a category from the list on the left panel.

I don’t know if it’s relevant, but I always get the error message “an internal error occurred during ‘MyEclipse Memory Monitor'” just after startup.

I’m using Fedora Core 7, and have selinux turned off. I’ve tried running as root but it has no effect.

Any help would be appreciated.

Thanks,
Steve

[Loyal Water]

Have you tried giving MyEclipse more memory? Try adding:
-vmargs -Xms128m -Xmx256m

to the command line or shortcut used to launch MyEclipse

[svgray]

Thanks, but am running from the MyEclipse.sh file provided which already sets Xms to 128M and Xmx to 512M. I’ve tried increasing the MaxPermSize setting which is also in the command line from 256 to 512M but this had no effect.

[Loyal Water]

Can you post your installation details here for me please. The posting guidelines are given at the top of the forums.

[svgray]

Installation details and error log below. The errors in the error log appear to result from the “MyEclipse Memory Monitor” problem – nothing is added between opening the preferences window and MyEclipse freezing.

Thanks,
Steve

Installation details:
*** Date:
Friday June 29, 2007 AD 7:25:58;841 o’clock PM GMT+10:00

** System properties:
OS=Linux
OS version=2.6.21-1.3194.fc7
Java version=1.5.0

*** MyEclipse details:
MyEclipse Enterprise Workbench
Version: 5.5.1 GA
Build id: 20070521-5.5.1-GA

*** Eclipse details:
MyEclipse Enterprise Workbench

Version: 5.5.1 GA
Build id: 20070521-5.5.1-GA

Eclipse Graphical Editing Framework

Version: 3.2.2.v20070208
Build id: 20070208-1315

Eclipse RCP

Version: 3.2.2.r322_v20070104-8pcviKVqd8J7C1U
Build id: M20070212-1330

Eclipse Project SDK

Version: 3.2.2.r322_v20070104-dCGKm0Ln38lm-8s
Build id: M20070212-1330

Eclipse Platform

Version: 3.2.2.r322_v20070119-RQghndJN8IM0MsK
Build id: M20070212-1330

Eclipse Plug-in Development Environment

Version: 3.2.1.r321_v20060823-6vYLLdQ3Nk8DrFG
Build id: M20070212-1330

Eclipse Java Development Tools

Version: 3.2.2.r322_v20070104-R4CR0Znkvtfjv9-
Build id: M20070212-1330

Eclipse startup command=-os
linux
-ws
gtk
-arch
x86
-launcher
/usr/bin/eclipse
-name
Eclipse
-showsplash
600
-exitdata
58000
-product
com.genuitec.myeclipse.product.ide
-vm
/usr/bin/java

*********************************************
Error log:
!SESSION 2007-06-29 19:29:53.212 ———————————————–
eclipse.buildId=M20070212-1330
java.fullversion=GNU libgcj 4.1.2 20070502 (Red Hat 4.1.2-12)
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Framework arguments: -product com.genuitec.myeclipse.product.ide
Command-line arguments: -os linux -ws gtk -arch x86 -product com.genuitec.myeclipse.product.ide

!ENTRY com.genuitec.eclipse.wizards 4 0 2007-06-29 19:30:37.470
!MESSAGE Unable to install snippet library: /opt/MyEclipse 5.5.1 GA/eclipse/plugins/com.genuitec.eclipse.wizards_5.5.1/snippets/jsp/struts_logic_snippets.xml
!STACK 0
gnu.xml.dom.ls.DomLSException: no root element: U+3c3f
at gnu.xml.dom.ls.DomLSParser.doParse(libgcj.so.8rh)
at gnu.xml.dom.ls.DomLSParser.parse(libgcj.so.8rh)
at gnu.xml.dom.DomDocumentBuilder.parse(libgcj.so.8rh)
at org.eclipse.wst.common.snippets.internal.palette.ModelFactoryForUser.load(ModelFactoryForUser.java:193)
at org.eclipse.wst.common.snippets.internal.palette.ModelFactoryForUser.loadCurrent(ModelFactoryForUser.java:224)
at org.eclipse.wst.common.snippets.internal.model.SnippetManager.loadDefinitions(SnippetManager.java:209)
at org.eclipse.wst.common.snippets.internal.model.SnippetManager.getDefinitions(SnippetManager.java:159)
at com.genuitec.eclipse.snippetinstaller.SnippetInstaller.installLibrary(SnippetInstaller.java:41)
at com.aston.AstonWizardsPlugin.installSnippetLibraries(AstonWizardsPlugin.java:411)
at com.aston.AstonWizardsPlugin.checkSnippetLibraries(AstonWizardsPlugin.java:335)
at com.aston.AstonWizardsPlugin.access$0(AstonWizardsPlugin.java:321)
at com.aston.AstonWizardsPlugin$1.run(AstonWizardsPlugin.java:467)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3157)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2859)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1930)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1894)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:422)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:95)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
at java.lang.reflect.Method.invoke(libgcj.so.8rh)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
Caused by: org.xml.sax.SAXParseException: no root element: U+3c3f
at gnu.xml.stream.SAXParser.parse(libgcj.so.8rh)
at gnu.xml.dom.ls.DomLSParser.doParse(libgcj.so.8rh)
…30 more
Caused by: javax.xml.stream.XMLStreamException: no root element: U+3c3f
at gnu.xml.stream.XMLParser.error(libgcj.so.8rh)
at gnu.xml.stream.XMLParser.error(libgcj.so.8rh)
at gnu.xml.stream.XMLParser.next(libgcj.so.8rh)
at gnu.xml.stream.XMLParser.hasNext(libgcj.so.8rh)
at gnu.xml.stream.SAXParser.parse(libgcj.so.8rh)
…31 more

!ENTRY org.eclipse.core.jobs 4 2 2007-06-29 19:30:38.882
!MESSAGE An internal error occurred during: “MyEclipse Memory Monitor”.
!STACK 0
java.lang.UnsupportedOperationException: gnu::java::lang::management::VMMemoryPoolMXBeanImpl::getUsage (::java::lang::String *) not implemented
at gnu.java.lang.management.MemoryPoolMXBeanImpl.getUsage(libgcj.so.8rh)
at com.genuitec.eclipse.memory.MemoryMonitorJob.shouldWarn(MemoryMonitorJob.java:62)
at com.genuitec.eclipse.memory.MemoryMonitorJob.run(MemoryMonitorJob.java:38)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)

[svgray]

Hi,

Just wondering if anyone has had a chance to look at this yet.

Thanks,
Steve

[Loyal Water]

Hi Steve,
Sorry for the delay. I would like you to try running MyEclipse with a different version of JDK. Can you try using a late version of Java 5 ?

Let me know if that solved the problem.

[svgray]

Hi Nipun,

Thanks for the suggestion. Changing the JRE worked.

It seems that when eclipse starts it ignores the JAVA_HOME variable and uses whatever java binary it finds at /usr/bin/java. On my system (Fedora Core 7) this was linked to a java binary at /etc/alternatives/java. I don’t know what this is but it is clearly not a Sun JDK/JRE. When I linked /usr/bin/java to JDK1.6/bin/java both the memory monitor problem and the set preferences option disappeared.

I do seem to remember that when MyEclipse installs it gives you a list of the JRE/JDKs installed on your system and asks you which one you want to use. Perhaps on Linux the install should check that /usr/bin/java is linked to whatever you select? Or perhaps MyEclipse.sh could override by settign the -vm option in the eclipse command line.

Thanks for your help with this,
Steve

[Loyal Water]

I do seem to remember that when MyEclipse installs it gives you a list of the JRE/JDKs installed on your system and asks you which one you want to use.

This is something that does not happen during install. You have to select it manually.

Glad to know it worked.

[Author]

Posts