Bug in eclipse, not showing anything in Install Software Screen

Question

I have a problem with my eclipse. Whenever I go to the Install Software screen and put in a an update site, the screen shows nothing but when I click on the screen where I can select plugins they're there and I can actually go on to install the plugins.

I actually saw the plugins showing the first time I used it and then I got this error:

"A handler conflict occurred. This may disable some commands" eclipse.buildId=M20090917-0800 java.version=1.6.0_15 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_PH Framework arguments: -product org.eclipse.epp.package.jee.product Command-line arguments: -os linux -ws gtk -arch x86 -product org.eclipse.epp.package.jee.product

Warning Sun Dec 27 14:13:49 PHT 2009 Conflict for 'org.eclipse.wst.jsdt.ui.edit.text.java.open.editor':HandlerActivation (commandId=org.eclipse.wst.jsdt.ui.edit.text.java.open.editor, handler=ActionHandler(org.eclipse.wst.jsdt.ui.actions.OpenAction@8eec22), expression=AndExpression(AndExpression(org.eclipse.ui.SubActionBars$1@12f8a71, ActivePartExpression(org.eclipse.ui.navigator.resources.ProjectExplorer@1e8b957)), WorkbenchWindowExpression(org.eclipse.ui.internal.WorkbenchWindow@270fc4)), sourcePriority=1064961) HandlerActivation(commandId=org.eclipse.wst.jsdt.ui.edit.text.java.open.editor, handler=ActionHandler(org.eclipse.wst.jsdt.ui.actions.OpenAction@8eec22), expression=AndExpression(AndExpression(org.eclipse.ui.SubActionBars$1@12f8a71, ActivePartExpression(org.eclipse.ui.navigator.resources.ProjectExplorer@1e8b957)) ,WorkbenchWindowExpression(org.eclipse.ui.internal.WorkbenchWindow@270fc4)), sourcePriority=1064961)

Answer 1

After reading items in this post I checked if deleting the .metadata folder fixed the situation. It fixed the problem but I lost my workspace settings. In order to fix this without losing your workspace settings you must delete only this file:

${YOUR_WORKSPACE_FOLDER}/.metadata/.plugins/org.eclipse.equinox.p2.ui/dialog_settings.xml

Answer 2

ggolebio had the right idea, and I'm assuming he got the information from https://bugs.eclipse.org/bugs/show_bug.cgi?id=324729

Rather than deleting the file do the following:

• edit ${YOUR_WORKSPACE_FOLDER}/.metadata/.plugins/org.eclipse.equinox.p2.ui/dialog_settings.xml
• set the AvailableNameColumnWidth to 420
• set the AvailableVersionColumnWidth to 140.
• Restart eclipse
• profit

This will not kill your workspace customizations like other solutions do.