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NullpointerException on TileEventHandler #60

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rsteph-de opened this issue Aug 7, 2023 · 1 comment
Open

NullpointerException on TileEventHandler #60

rsteph-de opened this issue Aug 7, 2023 · 1 comment

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@rsteph-de
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rsteph-de commented Aug 7, 2023 •
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The MCRTileEventhandler throws sometimes the following exception:

java.lang.NullPointerException: Cannot invoke "org.mycore.iview2.services.MCRTilingQueue.remove(String, String)" 
    because the return value of "org.mycore.iview2.services.MCRTilingQueue.getInstance()" is null
       at org.mycore.iview2.frontend.MCRIView2Commands.deleteImageTiles(MCRIView2Commands.java:408)
       at org.mycore.iview2.events.MCRImageTileEventHandler.handlePathDeleted(MCRImageTileEventHandler.java:66)
       at org.mycore.common.events.MCREventHandlerBase.doHandleEvent(MCREventHandlerBase.java:110)
       at org.mycore.common.events.MCREventManager.handleEvent(MCREventManager.java:153)
       ... 22 more
@rsteph-de
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As a temporary solution I will provide a wrapper for the Eventhandler
which Logs the Exception and ignores it.

rsteph-de added a commit that referenced this issue Aug 7, 2023
@rsteph-de
handle NPE in MCRImageTileEventHandler #60
1337d10
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