[Bug 1020] New: Null String encoding is not following strict IIOP

http://www.jacorb.org/bugzilla/show_bug.cgi?id=1020

            Bug ID: 1020
           Summary: Null String encoding is not following strict IIOP
           Product: JacORB
           Version: 3.5
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P5
         Component: ORB
          Assignee: [email protected]
          Reporter: [email protected]

When encoding zero length String, Jacorb is creating a String of length one
with the terminating zero character. 
However, when you switch on the null String encoding
(jacorb.interop.null_string_encoding=on), it generates a zero length String,
that can break the server ORB which can not unmarshall it.

in CDROutputStream, encoding of a zero length stream:
if (valueLength == 0)
{
    // Blank string; just write size and terminator. Don't need to
    // align here as these methods will do it for us.
    write_long( 1 );
    write_octet( (byte)0 );
}

null string encoding:
if (nullStringEncoding)
{
    write_long(0);
    return;
}

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