VariableFieldPackager NPE on msg.pack followed by hexdump when field is not set and only the dlimiter is expected in the stream

[mchhil-incomm]

The value needs to be set with an empty string if the user did not set it specifically and was null. This mimics unpack where value is set to "" when only a delimiter is found. Due to this not being set in pack, the hexdump called on the msg after pack, results in a NPE.

        VariableFieldPackager f1  = new VariableFieldPackager("F1", 20, Byte.valueOf((byte) 0x1c),
                                                              AsciiInterpreter.INSTANCE);

        FSDMsgX               msg = new FSDMsgX("Test1");
        msg.add("F1", f1);


        byte[] arr = msg.pack();

        System.out.println(msg.getParserTree(""));
        System.out.println(msg.hexDump(""));

Output

[Test1]
Field [F1] : VAR[0..20] delimiter[0x1C] or EOM  : 

0000  1C                                                .