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Eclipse web page editor throws NullPointerException

  • When I attempt to view mango .jsp files with the eclipse web page editor, it fails with the following exception. Has anyone else experienced this?

    at org.eclipse.jst.jsf.core.internal.tld.CMUtil.getStandaloneTLDURI(
    at org.eclipse.jst.jsf.core.internal.tld.CMUtil.getURIFromTaglibRecord(
    at org.eclipse.jst.pagedesigner.editors.palette.impl.PaletteHelper.configPaletteItemsByTLD(
    at org.eclipse.jst.pagedesigner.editors.palette.impl.PaletteItemManager.registerTldFromClasspath(
    at org.eclipse.jst.pagedesigner.editors.palette.impl.PaletteItemManager.initFromProject(
    at org.eclipse.jst.pagedesigner.editors.palette.impl.PaletteItemManager.init(
    at org.eclipse.jst.pagedesigner.editors.palette.impl.PaletteItemManager.<init>(
    at org.eclipse.jst.pagedesigner.editors.palette.impl.PaletteItemManager.getInstance(
    at org.eclipse.jst.pagedesigner.editors.palette.DesignerPaletteRootFactory.createPaletteRoot(
    at org.eclipse.jst.pagedesigner.editors.SimpleGraphicalEditor.getPaletteRoot(
    at org.eclipse.jst.pagedesigner.editors.SimpleGraphicalEditor.<init>(
    at org.eclipse.jst.pagedesigner.editors.HTMLEditor.sash_createAndAddDesignSourcePage(
    at org.eclipse.jst.pagedesigner.editors.HTMLEditor.createPages(
    at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(

  • I'm using Mango 1.9.0, Eclipse Helios, and j2ee 5.

  • With a fresh install of Helios it works for me. (Was still using Galileo.) I have J2SE6 though. Have you tried a different Java version?

  • Could you point me to where I can download J2SE6. The only thing I can find is packaged under glassfish, and it doesn't seem right that I should be using an api that is glassfish specific.