https://bz.apache.org/bugzilla/show_bug.cgi?id=64542
Bug ID: 64542
Summary: FileBackedDataSource closing external FileChannel
Product: POI
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P2
Component: POIFS
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
I am creating POIFSFileSystem instances in various ways, depending on what I
have available: a File, FileChannel or InputStream. I just found out that
calling POIFSFileSystem.close() (via a try-with-resources) also closes the
FileChannel, even when that channel is passed to it from an external source.
Any subsequent operations on that channel (like calculating an MD5 hash) then
run into a ClosedChannelException. IMHO POIFSFileSystem/FileBackedDataSource
should only close the FileChannel if it has created it itself. It would be
great if you could fix this.
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