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Editorial Team
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Editorial Team
Asked: May 22, 20262026-05-22T00:58:38+00:00 2026-05-22T00:58:38+00:00

Had some strange errors, described here: lost in deployment: session.getAttribute() returns NULL in some

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Had some strange errors, described here: lost in deployment: session.getAttribute() returns NULL in some Tomcat configurations and been advised to remove the SysDeo plugin.

Googled on how to remove plugins in Eclipse 3.6, found the plugin in Eclipse Installation Details, still looking for some “uninstall/remove” button. Or should I just remove the files from some of the eclipse sub-folders (contrary to what is written in Eclipse tutorials) and it’ll work?

Thanks!

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  1. Editorial Team
    Editorial Team
    2026-05-22T00:58:39+00:00Added an answer on May 22, 2026 at 12:58 am

    Help->About>Installation details->Installed software tab

    Click on the software that you want to unistall and the “uninstall” button becames enabled. Click that button to uninstall the software.

    enter image description here

    EDIT: In your comment you say that you installed the plugin by dropping it in the “dropins” folder. Well, according to this, the way to uninstall it would be to just delete it from the “dropins” folder and restart Eclipse.

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