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MyEclipse hover feature broken

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  • #529449 Reply

    Lofi
    Participant

    When you hover over a class or a method you usually see the JavaDoc. This doesn’t work anymore in MyEclipse 1.0 stable. I checked the log and this is in it:

    !SESSION 2017-07-06 17:18:47.621 -----------------------------------------------
    
    eclipse.buildId=15.0.0.Stable-001
    
    java.version=1.8.0_40
    
    java.vendor=Oracle Corporation
    
    BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=de_AT
    
    Command-line arguments:  -os win32 -ws win32 -arch x86_64 
    
    ...
    
    !ENTRY org.eclipse.jface.text 4 0 2017-07-06 17:20:08.816
    
    !MESSAGE Unexpected runtime error while computing a text hover
    
    !STACK 0
    
    java.lang.NullPointerException
    
                at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.getStyleSheet(JavadocHover.java:943)
    
                at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.getHoverInfo(JavadocHover.java:747)
    
                at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.internalGetHoverInfo(JavadocHover.java:635)
    
                at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.getHoverInfo2(JavadocHover.java:627)
    
                at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:164)
    
                at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:130)
    
                at org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy.getHoverInfo2(JavaEditorTextHoverProxy.java:86)
    
                at org.eclipse.jface.text.TextViewerHoverManager$4.run(TextViewerHoverManager.java:165)

    I installed 22 versions of MyEclipse 1.0 stable in the last 2 weeks. This version got released in April. I expected everything to work. Apparently there’s still this annoying bug in it. Is there an easy fix to this that every developer can apply themselves?

    An interesting thing is that a colleague has the same installation as others and for him it works. So I have hopes that there is an easy fix withouth having to install the latest CI version on 22 machines.

    Thank you very much for your help!

    note: this is a repost, for some reason my edited post doesn’t show up anymore

    #529525 Reply

    Lofi
    Participant

    Found a workaround after checking why it worked for a colleague. Apparently stylesheets get re-initailized after switching themes: Switch to darkest theme, then try to show the javadoc via hover (should work now), then switch back to classic theme, then restart MyEclipse. Works fine after that and every subsequent restart, also the JavaDoc view.

    #529535 Reply

    support-tony
    Keymaster

    Lofi,

    Thanks for figuring this out and posting a workaround. This has been fixed in later CI releases so your workaround is the only way to fix this in the older Stable release.

    I’m sorry for the inconvenience but, again, thanks for pursuing the fix.

    Apologies for the missing post of yours – we’ll investigate that to ensure it doesn’t happen again.

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