https://issues.apache.org/bugzilla/show_bug.cgi?id=56447

            Bug ID: 56447
           Summary: IllegalArgumentException when initializing
                    NPOIFSFileSystem object
           Product: POI
           Version: 3.10
          Hardware: Macintosh
            Status: NEW
          Severity: normal
          Priority: P2
         Component: POIFS
          Assignee: [email protected]
          Reporter: [email protected]

I am using POIFS to extract data from OLE2 files generated by an X-ray scanner.
Opening small files works fine with both POIFSFileSystem and NPOIFSFileSystem.
However, when I try to open large files (say, a few GB or larger), I get an
OutOfMemory exception with POIFSFileSystem, and with NPOIFSFileSystem, I get
the following exception:

java.lang.IllegalArgumentException
    at java.nio.ByteBuffer.allocate(ByteBuffer.java:330)
    at
org.apache.poi.poifs.filesystem.NPOIFSFileSystem.<init>(NPOIFSFileSystem.java:275)

Could this be a bug in NPOIFSFileSystem?

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