LinuxQuestions.org - error running eclipse

hello i have little linux knowledge and especially when it comes to makin work right. anyway here is my problem. i had eclipse running perfectly on my linux machine (suse10.0) and had it installed to using Yast. i then changed the java version from 1.4.2 to 1.5. then it didnt work. by that i mean i would try to run eclipse and it wouldnt open and i had the following error:

An error has occurred. See the log file
/home/rich/.eclipse/.metadata/.log

i figured it was just because i had changed the version of java. so i removed eclipse using yast then reinstalled it in hopes that it would do whatever it needed to do to resolve that problem, but this was no help still got the same error. here is the log file would someone please please help me!!!

also the $JAVA_HOME is to the corrected java 1.5 folder
and note the java version on the third line!!!

thank you rich

***************************************************************
/home/rich/.eclipse/.metadata/.log:
***************************************************************

!SESSION 2005-10-20 13:55:21.188 -----------------------------------------------
eclipse.buildId=I20050627-1435
java.version=1.4.2_06
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Command-line arguments: -os linux -ws gtk -arch x86 -data /home/rich/.eclipse

!ENTRY org.eclipse.core.resources 1 1 2005-10-20 13:57:50.697
!MESSAGE Could not load library: libcore_3_1_0.so. This library provides platform-specific optimizations for certain file system operations. This library is not present on all platforms, so this may not be an error. The resources plug-in will safely fall back to using java.io.File functionality.
!SESSION 2005-10-20 19:08:30.756 -----------------------------------------------
eclipse.buildId=I20050627-1435
java.version=1.4.2_09
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Command-line arguments: -os linux -ws gtk -arch x86 -data /home/rich/.eclipse

!ENTRY org.eclipse.core.resources 1 1 2005-10-20 19:08:38.40
!MESSAGE Could not load library: libcore_3_1_0.so. This library provides platform-specific optimizations for certain file system operations. This library is not present on all platforms, so this may not be an error. The resources plug-in will safely fall back to using java.io.File functionality.
!SESSION 2005-11-08 20:17:16.237 -----------------------------------------------
eclipse.buildId=I20050627-1435
java.version=1.4.2_06
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Command-line arguments: -os linux -ws gtk -arch x86 -data /home/rich/.eclipse

!ENTRY org.eclipse.core.resources 1 1 2005-11-08 20:17:23.523
!MESSAGE Could not load library: libcore_3_1_0.so. This library provides platform-specific optimizations for certain file system operations. This library is not present on all platforms, so this may not be an error. The resources plug-in will safely fall back to using java.io.File functionality.
!SESSION 2005-11-15 19:54:53.616 -----------------------------------------------
eclipse.buildId=I20050627-1435
java.version=1.4.2_06
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Command-line arguments: -os linux -ws gtk -arch x86 -data /home/rich/.eclipse
!ENTRY org.eclipse.core.resources 1 1 2005-11-15 19:55:00.361
!MESSAGE Could not load library: libcore_3_1_0.so. This library provides platform-specific optimizations for certain file system operations. This library is not present on all platforms, so this may not be an error. The resources plug-in will safely fall back to using java.io.File functionality.

!ENTRY org.eclipse.ui 4 4 2005-11-15 19:55:27.795
!MESSAGE Unhandled event loop exception

!ENTRY org.eclipse.ui 4 0 2005-11-15 19:55:27.796
!MESSAGE Failed to execute runnable (java.lang.NullPointerException)
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException)
at org.eclipse.swt.SWT.error(SWT.java:2942)
at org.eclipse.swt.SWT.error(SWT.java:2865)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:126)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:2844)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2575)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163)
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:324)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
at org.eclipse.core.launcher.Main.run(Main.java:973)
org.eclipse.core.launcher.Main.main(Main.java:948)
Caused by: java.lang.NullPointerException
at org.eclipse.jdt.internal.ui.text.javadoc.JavaDocCompletionEvaluator.computeCompletionProposals(JavaD ocCompletionEvaluator.java:176)
at org.eclipse.jdt.internal.ui.text.javadoc.JavaDocCompletionProcessor.computeCompletionProposals(JavaD ocCompletionProcessor.java:200)
at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.ja va:1503)
at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopu p.java:261)
at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$7(CompletionProposalPopup.java:2 58)
at org.eclipse.jface.text.contentassist.CompletionProposalPopup$1.run(CompletionProposalPopup.java:221)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
at org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.j ava:216)
at org.eclipse.jface.text.contentassist.ContentAssistant$2.run(ContentAssistant.java:327)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123)
... 18 more
!SESSION 2005-11-16 11:14:39.39 ------------------------------------------------
eclipse.buildId=I20050627-1435
java.version=1.4.2_06
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Command-line arguments: -os linux -ws gtk -arch x86 -data /home/rich/.eclipse

!ENTRY org.eclipse.core.resources 1 1 2005-11-16 11:14:45.651
!MESSAGE Could not load library: libcore_3_1_0.so. This library provides platform-specific optimizations for certain file system operations. This library is not present on all platforms, so this may not be an error. The resources plug-in will safely fall back to using java.io.File functionality.
!SESSION 2005-11-16 17:21:46.247 -----------------------------------------------
eclipse.buildId=I20050627-1435
java.version=1.5.0_03
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Command-line arguments: -os linux -ws gtk -arch x86 -data /home/rich/.eclipse

....and from there it seems to go on forever... if anyone could help that would be awesome too if you think that the rest of the log would be more usefull i will repost but this was like only 10% of it or something, so
anyway thanks
rich