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Filtering leads to Null Pointer exception when saving #617
I am frequently getting "NullPointerException" errors when saving files. I've gotten the error on three different computers, Windows XP and Ubuntu Linux. Version info from one of the systems is below:
The error occurs after I have used filtering to identify a subset of a graph and then moved that subset to a new workspace. For example, see the following steps:
I can upload the files if others are unable to reproduce this.
These are two files, one showing the file before applying the filter and creating the new workspace from filtered values, the other showing the result after doing that. I can successfully save the first (pre-filter) file, but get the NullPointer exception when trying to save the second (post-filter) file. Files are in tarball to avoid creating two comments.
One workaround identified: instead of filtering and creating a new workspace from the filtered graph, within the filter window use the "select" option to select the desired nodes, right click any of them, and copy/move to a new workspace.