https://bz.apache.org/bugzilla/show_bug.cgi?id=63569

            Bug ID: 63569
           Summary: [PATCH] toByteArray(InputStream stream) in IOUtils
                    always generate exception
           Product: POI
           Version: 4.0.0-FINAL
          Hardware: All
                OS: All
            Status: NEW
          Severity: blocker
          Priority: P2
         Component: POI Overall
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

This call indeed call toByteArray(InputStream stream, Integer.MAX_LENGTH,
Integer.MAX_LENGTH) and run in an exception considering this is a too long
ByteArray. It's a wrong asumption considering that this value is only to say
"unknown length", and that the function manage this unknown length...

The patch is to replace:

            checkLength(length, maxLength);

by :

        if ((length!=Integer.MAX_VALUE) || (maxLength!=Integer.MAX_VALUE))
            checkLength(length, maxLength);

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