Adding field 55 makes Jpos complain about field 53 when unpacking

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tobias.a...@gmail.com

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Oct 16, 2014, 2:31:07 AM10/16/14

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Hi,

I am working against amex spec and writing a bank simulator with help of Jpos. I have an issue with unpacking field 55.

The problem is when I don't send field 55 then unpacking of field 53 works, but when adding field 55 then Jpos complains that it could not unpack field 55.

I really appreciate if someone could help me with this?

Here is the data:

<session-start/>

</log>

<iso-exception>

org.jpos.iso.IFE_LLCHAR: Problem unpacking field 53 (org.jpos.iso.ISOException: Field length 34 too long. Max: 8) unpacking field=53, consumed=143

org.jpos.iso.ISOException: org.jpos.iso.IFE_LLCHAR: Problem unpacking field 53 (org.jpos.iso.ISOException: Field length 34 too long. Max: 8) unpacking field=53, consumed=143

at org.jpos.iso.ISOBasePackager.unpack(ISOBasePackager.java:266)

at org.jpos.iso.ISOMsg.unpack(ISOMsg.java:454)

at org.jpos.iso.BaseChannel.unpack(BaseChannel.java:962)

at org.jpos.iso.BaseChannel.receive(BaseChannel.java:733)

at org.jpos.iso.ISOServer$Session.run(ISOServer.java:156)

at org.jpos.util.ThreadPool$PooledThread.run(ThreadPool.java:72)

</iso-exception>

--- data ---

0000 F1 F1 F0 F0 70 34 25 E0 08 C0 9A 00 F1 F6 F4 F4 ....p4%.........

0010 F4 F4 F2 F2 F2 F2 F3 F3 F3 F3 F1 F1 F1 F1 F0 F0 ................

0020 F4 F0 F0 F0 F0 F0 F0 F0 F0 F0 F0 F0 F2 F1 F0 F0 ................

0030 F1 F2 F3 F4 F5 F6 F0 F9 F0 F1 F3 F1 F1 F6 F5 F9 ................

0040 F4 F5 F1 F2 F0 F1 F0 F3 F6 F5 F0 F0 F0 F0 F0 E6 ................

0050 F5 F4 F0 F0 F0 F1 F0 F0 F1 F9 F0 F0 F5 F3 F1 F1 ................

0060 F6 F0 F0 F0 F0 F9 F0 F1 F2 F3 F4 F5 F6 F0 F2 F5 ................

0070 F0 F0 F0 F2 F9 F3 F3 F4 F2 F5 F1 F7 F5 F3 F9 40 ...............@

0080 40 40 40 40 F7 F5 F2 F0 F1 F2 F3 F0 F8 F1 F2 F3 @@@@............

0090 F4 F5 F6 F7 F8 F0 F5 F6 C1 C7 D5 E2 00 01 6C 6D ..............lm

00a0 EB 98 6D 9C 0E E5 06 01 0A 03 A4 00 00 84 58 F8 ..m...........X.

00b0 22 00 45 00 00 00 80 00 08 09 15 00 00 00 00 00 ".E.............

00c0 65 00 07 52 07 52 5C 00 00 00 00 00 00 00 00 80 e..R.R\.........

</receive>

</log>

<session-error>

<iso-exception>

org.jpos.iso.IFE_LLCHAR: Problem unpacking field 53 (org.jpos.iso.ISOException: Field length 34 too long. Max: 8) unpacking field=53, consumed=143

org.jpos.iso.ISOException: org.jpos.iso.IFE_LLCHAR: Problem unpacking field 53 (org.jpos.iso.ISOException: Field length 34 too long. Max: 8) unpacking field=53, consumed=143

at org.jpos.iso.ISOBasePackager.unpack(ISOBasePackager.java:266)

at org.jpos.iso.ISOMsg.unpack(ISOMsg.java:454)

at org.jpos.iso.BaseChannel.unpack(BaseChannel.java:962)

at org.jpos.iso.BaseChannel.receive(BaseChannel.java:733)

at org.jpos.iso.ISOServer$Session.run(ISOServer.java:156)

at org.jpos.util.ThreadPool$PooledThread.run(ThreadPool.java:72)

</iso-exception>

</session-error>

</log>

<session-end/>

</log>

And here is the packager definition:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>

<!DOCTYPE isopackager SYSTEM "genericpackager.dtd">

<isofield

id="0"

length="4"

name="MESSAGE TYPE INDICATOR"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="1"

length="16"

name="BIT MAP"

class="org.jpos.iso.IFB_BITMAP"/>

<isofield

id="2"

length="19"

name="PAN - PRIMARY ACCOUNT NUMBER"

pad="false"

class="org.jpos.iso.IFE_LLNUM"/>

<isofield

id="3"

length="6"

name="PROCESSING CODE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="4"

length="12"

name="AMOUNT, TRANSACTION"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="5"

length="12"

name="AMOUNT, SETTLEMENT"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="6"

length="12"

name="AMOUNT, CARDHOLDER BILLING"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="7"

length="10"

name="TRANSMISSION DATE AND TIME"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="8"

length="8"

name="AMOUNT, CARDHOLDER BILLING FEE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="9"

length="8"

name="CONVERSION RATE, SETTLEMENT"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="10"

length="8"

name="CONVERSION RATE, CARDHOLDER BILLING"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="11"

length="6"

name="SYSTEM TRACE AUDIT NUMBER"

pad="true"

class="org.jpos.iso.IF_ECHAR"/>

<isofield

id="12"

length="12"

name="DATE AND TIME, LOCAL TRANSACTION"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="13"

length="4"

name="DATE, EFFECTIVE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="14"

length="4"

name="DATE, EXPIRATION"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="15"

length="6"

name="DATE, SETTLEMENT"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="16"

length="4"

name="DATE, CONVERSION"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="17"

length="4"

name="DATE, CAPTURE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="18"

length="4"

name="MERCHANTS TYPE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="19"

length="3"

name="ACQUIRING INSTITUTION COUNTRY CODE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="20"

length="3"

name="PAN EXTENDED COUNTRY CODE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="21"

length="3"

name="FORWARDING INSTITUTION COUNTRY CODE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="22"

length="12"

name="POINT OF SERVICE DATA CODE"

pad="true"

class="org.jpos.iso.IF_CHAR"/>

<isofield

id="23"

length="3"

name="CARD SEQUENCE NUMBER"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="24"

length="3"

name="FUNCTION CODE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="25"

length="4"

name="MESSAGE REASON CODE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="26"

length="4"

name="CARD ACCEPTOR BUSINESS CODE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="27"

length="1"

name="AUTHORIZATION IDENTIFICATION RESP LEN"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="28"

length="9"

name="AMOUNT, TRANSACTION FEE"

pad="true"

class="org.jpos.iso.IFE_AMOUNT"/>

<isofield

id="29"

length="9"

name="AMOUNT, SETTLEMENT FEE"

pad="true"

class="org.jpos.iso.IFE_AMOUNT"/>

<isofield

id="30"

length="24"

name="AMOUNT, ORIGINAL"

pad="true"

class="org.jpos.iso.IFE_NUMERIC">

</isofield>

<isofield

id="31"

length="48"

name="ACQUIRER REFERENCE DATA"

class="org.jpos.iso.IFE_LLCHAR">

</isofield>

<isofield

id="32"

length="11"

name="ACQUIRING INSTITUTION IDENT CODE"

pad="false"

class="org.jpos.iso.IFE_LLNUM"/>

<isofield

id="33"

length="11"

name="FORWARDING INSTITUTION IDENT CODE"

pad="false"

class="org.jpos.iso.IFE_LLNUM"/>

<isofield

id="34"

length="28"

name="PAN EXTENDED"

class="org.jpos.iso.IFE_LLCHAR"/>

<isofield

id="35"

length="37"

name="TRACK 2 DATA"

class="org.jpos.iso.IFE_LLCHAR"/>

<isofield

id="36"

length="104"

name="TRACK 3 DATA"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="37"

length="12"

name="RETRIEVAL REFERENCE NUMBER"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="38"

length="6"

name="AUTHORIZATION IDENTIFICATION RESPONSE"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="39"

length="3"

name="RESPONSE CODE"

class="org.jpos.iso.IFE_CHAR">

</isofield>

<isofield

id="40"

length="3"

name="SERVICE RESTRICTION CODE"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="41"

length="8"

name="CARD ACCEPTOR TERMINAL IDENTIFICACION"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="42"

length="15"

name="CARD ACCEPTOR IDENTIFICATION CODE"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="43"

length="99"

name="CARD ACCEPTOR NAME/LOCATION"

class="org.jpos.iso.IFE_LLCHAR"/>

<isofield

id="44"

length="25"

name="ADITIONAL RESPONSE DATA"

class="org.jpos.iso.IFE_LLCHAR"/>

<isofield

id="45"

length="76"

name="TRACK 1 DATA"

class="org.jpos.iso.IFE_LLCHAR"/>

<isofield

id="46"

length="999"

name="ADITIONAL DATA - ISO"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="47"

length="301"

name="ADITIONAL DATA - NATIONAL"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="48"

length="40"

name="ADITIONAL DATA - PRIVATE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="49"

length="3"

name="CURRENCY CODE, TRANSACTION"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="50"

length="3"

name="CURRENCY CODE, SETTLEMENT"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="51"

length="3"

name="CURRENCY CODE, CARDHOLDER BILLING"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="52"

length="8"

name="PIN DATA"

class="org.jpos.iso.IFB_BINARY"/>

<isofield

id="53"

length="8"

name="SECURITY RELATED CONTROL INFORMATION"

class="org.jpos.iso.IFE_LLCHAR"/>

<isofield

id="54"

length="120"

name="ADDITIONAL AMOUNTS"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="55"

length="256"

name="INTEGRATED CARD CIRCUIT SYSTEM RELATED DATA"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="56"

length="35"

name="ORIGINAL DATA ELEMENTS"

class="org.jpos.iso.IFE_LLCHAR"/>

<isofield

id="57"

length="3"

name="AUTHORIZATION LIFE CYCLE CODE"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="58"

length="11"

name="AUTHORIZING AGENT INSTITUTION IDENTIFICATION CODE"

class="org.jpos.iso.IFE_LLNUM"/>

<isofield

id="59"

length="99"

name="TRANSPORT DATA"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="60"

length="300"

name="NATIONAL USE DATA"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="61"

length="100"

name="NATIONAL USE DATA"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="62"

length="60"

name="PRIVATE USE DATA"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="63"

length="205"

name="PRIVATE USE DATA"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="64"

length="8"

name="MESSAGE AUTHENTICATION CODE FIELD"

class="org.jpos.iso.IFB_BINARY"/>

<isofield

id="65"

length="1"

name="BITMAP, EXTENDED"

class="org.jpos.iso.IFB_BINARY"/>

<isofield

id="66"

length="1"

name="SETTLEMENT CODE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="67"

length="2"

name="EXTENDED PAYMENT CODE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="68"

length="3"

name="RECEIVING INSTITUTION COUNTRY CODE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="69"

length="3"

name="SETTLEMENT INSTITUTION COUNTRY CODE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="70"

length="3"

name="NETWORK MANAGEMENT INFORMATION CODE"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="71"

length="4"

name="MESSAGE NUMBER"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="72"

length="4"

name="MESSAGE NUMBER LAST"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="73"

length="6"

name="DATE ACTION"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="74"

length="10"

name="CREDITS NUMBER"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="75"

length="10"

name="CREDITS REVERSAL NUMBER"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="76"

length="10"

name="DEBITS NUMBER"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="77"

length="10"

name="DEBITS REVERSAL NUMBER"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="78"

length="10"

name="TRANSFER NUMBER"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="79"

length="10"

name="TRANSFER REVERSAL NUMBER"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="80"

length="10"

name="INQUIRIES NUMBER"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="81"

length="10"

name="AUTHORIZATION NUMBER"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="82"

length="12"

name="CREDITS, PROCESSING FEE AMOUNT"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="83"

length="12"

name="CREDITS, TRANSACTION FEE AMOUNT"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="84"

length="12"

name="DEBITS, PROCESSING FEE AMOUNT"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="85"

length="12"

name="DEBITS, TRANSACTION FEE AMOUNT"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="86"

length="16"

name="CREDITS, AMOUNT"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="87"

length="16"

name="CREDITS, REVERSAL AMOUNT"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="88"

length="16"

name="DEBITS, AMOUNT"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="89"

length="16"

name="DEBITS, REVERSAL AMOUNT"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="90"

length="42"

name="ORIGINAL DATA ELEMENTS"

pad="true"

class="org.jpos.iso.IFE_NUMERIC"/>

<isofield

id="91"

length="1"

name="FILE UPDATE CODE"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="92"

length="2"

name="FILE SECURITY CODE"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="93"

length="5"

name="RESPONSE INDICATOR"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="94"

length="7"

name="SERVICE INDICATOR"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="95"

length="42"

name="REPLACEMENT AMOUNTS"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="96"

length="18"

name="MESSAGE SECURITY CODE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="97"

length="17"

name="AMOUNT, NET SETTLEMENT"

pad="false"

class="org.jpos.iso.IFE_AMOUNT"/>

<isofield

id="98"

length="25"

name="PAYEE"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="99"

length="11"

name="SETTLEMENT INSTITUTION IDENT CODE"

pad="false"

class="org.jpos.iso.IFE_LLNUM"/>

<isofield

id="100"

length="11"

name="RECEIVING INSTITUTION IDENT CODE"

pad="false"

class="org.jpos.iso.IFE_LLNUM"/>

<isofield

id="101"

length="17"

name="FILE NAME"

class="org.jpos.iso.IFE_LLCHAR"/>

<isofield

id="102"

length="28"

name="ACCOUNT IDENTIFICATION 1"

class="org.jpos.iso.IFE_LLCHAR"/>

<isofield

id="103"

length="28"

name="ACCOUNT IDENTIFICATION 2"

class="org.jpos.iso.IFE_LLCHAR"/>

<isofield

id="104"

length="100"

name="TRANSACTION DESCRIPTION"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="105"

length="999"

name="RESERVED ISO USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="106"

length="999"

name="RESERVED ISO USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="107"

length="999"

name="RESERVED ISO USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="108"

length="999"

name="RESERVED ISO USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="109"

length="999"

name="RESERVED ISO USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="110"

length="999"

name="RESERVED ISO USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="111"

length="999"

name="RESERVED ISO USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="112"

length="999"

name="RESERVED NATIONAL USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="113"

length="999"

name="RESERVED NATIONAL USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="114"

length="999"

name="RESERVED NATIONAL USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="115"

length="999"

name="RESERVED NATIONAL USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="116"

length="999"

name="RESERVED NATIONAL USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="117"

length="999"

name="RESERVED NATIONAL USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="118"

length="999"

name="RESERVED NATIONAL USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="119"

length="999"

name="RESERVED NATIONAL USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="120"

length="999"

name="RESERVED PRIVATE USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="121"

length="999"

name="RESERVED PRIVATE USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="122"

length="999"

name="RESERVED PRIVATE USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="123"

length="999"

name="RESERVED PRIVATE USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="124"

length="3"

name="DEBIT FUNCTION CODE"

class="org.jpos.iso.IFE_CHAR"/>

<isofield

id="125"

length="999"

name="RESERVED PRIVATE USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="126"

length="999"

name="RESERVED PRIVATE USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="127"

length="999"

name="RESERVED PRIVATE USE"

class="org.jpos.iso.IFE_LLLCHAR"/>

<isofield

id="128"

length="8"

name="MAC 2"

class="org.jpos.iso.IFB_BINARY"/>

</isopackager>

Victor Salaman

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Oct 16, 2014, 3:48:06 AM10/16/14

to jpos-...@googlegroups.com

Hi:

You have defined in your packager that the max length for field 53 would be 8. Your incoming data says otherwise. The exception you are getting is because the length of field 53 in the incoming data is 34 bytes long, which is longer than the 8 you have defined. I would say your incoming data is incorrect. Who is generating it?

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Victor Salaman

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Oct 16, 2014, 4:10:13 AM10/16/14

to jpos-...@googlegroups.com

BTW, whoever doctored your raw data probably made a mistake and overrode data from another field. If you look at your raw data for field 52, you see that it’s “F0F1F2F3F0F8F1F2” and raw data for field 53 started with F3 F4, which would explain why the next field (53) had length 34. If we change the length to F0 F4 (04), the message unpacks correctly.

Also note that your packager had several mistakes:

Your field 22 should be defined as an EBCDIC char.

<isofield
            id="22"
            length="12"
            name="POINT OF SERVICE DATA CODE"
            pad="true"


            class="org.jpos.iso.IFE_CHAR"/>

Here is the result of the unpack now:

<log realm="main" at="Thu Oct 16 03:57:16 EDT 2014.497" lifespan="41ms">
  <unpack>
    F1F1F0F0703425E008C09A00F1F6F4F4F4F4F2F2F2F2F3F3F3F3F1F1F1F1F0F0F4F0F0F0F0F0F0F0F0F0F0F0F2F1F0F0F1F2F3F4F5F6F0F9F0F1F3F1F1F6F5F9F4F5F1F2F0F1F0F3F6F5F0F0F0F0F0E6F5F4F0F0F0F1F0F0F1F9F0F0F5F3F1F1F6F0F0F0F0F9F0F1F2F3F4F5F6F0F2F5F0F0F0F2F9F3F3F4F2F5F1F7F5F3F94040404040F7F5F2F0F1F2F3F0F8F1F2F0F4F5F6F7F8F0F5F6C1C7D5E200016C6DEB986D9C0EE506010A03A400008458F8220045000000800008091500000000006500075207525C000000000000000080
    <bitmap>{2, 3, 4, 11, 12, 14, 19, 22, 24, 25, 26, 27, 37, 41, 42, 49, 52, 53, 55}</bitmap>
    <unpack fld="2" packager="org.jpos.iso.IFE_LLNUM">
      <value>4444222233331111</value>
    </unpack>
    <unpack fld="3" packager="org.jpos.iso.IFE_NUMERIC">
      <value>004000</value>
    </unpack>
    <unpack fld="4" packager="org.jpos.iso.IFE_NUMERIC">
      <value>000000002100</value>
    </unpack>
    <unpack fld="11" packager="org.jpos.iso.IF_ECHAR">
      <value>123456</value>
    </unpack>
    <unpack fld="12" packager="org.jpos.iso.IFE_NUMERIC">
      <value>090131165945</value>
    </unpack>
    <unpack fld="14" packager="org.jpos.iso.IFE_NUMERIC">
      <value>1201</value>
    </unpack>
    <unpack fld="19" packager="org.jpos.iso.IFE_NUMERIC">
      <value>036</value>
    </unpack>
    <unpack fld="22" packager="org.jpos.iso.IFE_CHAR">
      <value>500000W54000</value>
    </unpack>
    <unpack fld="24" packager="org.jpos.iso.IFE_NUMERIC">
      <value>100</value>
    </unpack>
    <unpack fld="25" packager="org.jpos.iso.IFE_NUMERIC">
      <value>1900</value>
    </unpack>
    <unpack fld="26" packager="org.jpos.iso.IFE_NUMERIC">
      <value>5311</value>
    </unpack>
    <unpack fld="27" packager="org.jpos.iso.IFE_NUMERIC">
      <value>6</value>
    </unpack>
    <unpack fld="37" packager="org.jpos.iso.IFE_CHAR">
      <value>000090123456</value>
    </unpack>
    <unpack fld="41" packager="org.jpos.iso.IFE_CHAR">
      <value>02500029</value>
    </unpack>
    <unpack fld="42" packager="org.jpos.iso.IFE_CHAR">
      <value>3342517539     </value>
    </unpack>
    <unpack fld="49" packager="org.jpos.iso.IFE_NUMERIC">
      <value>752</value>
    </unpack>
    <unpack fld="52" packager="org.jpos.iso.IFB_BINARY">
      <value type='binary'>F0F1F2F3F0F8F1F2</value>
    </unpack>
    <unpack fld="53" packager="org.jpos.iso.IFE_LLCHAR">
      <value>5678</value>
    </unpack>
    <unpack fld="55" packager="org.jpos.iso.IFE_LLLBINARY">
      <value type='binary'>C1C7D5E200016C6DEB986D9C0EE506010A03A400008458F8220045000000800008091500000000006500075207525C000000000000000080</value>
    </unpack>
</log>

<isomsg>
  <!-- org.jpos.iso.packager.GenericPackager[amex.xml] -->
  <field id="0" value="1100"/>
  <field id="2" value="4444222233331111"/>
  <field id="3" value="004000"/>
  <field id="4" value="000000002100"/>
  <field id="11" value="123456"/>
  <field id="12" value="090131165945"/>
  <field id="14" value="1201"/>
  <field id="19" value="036"/>
  <field id="22" value="500000W54000"/>
  <field id="24" value="100"/>
  <field id="25" value="1900"/>
  <field id="26" value="5311"/>
  <field id="27" value="6"/>
  <field id="37" value="000090123456"/>
  <field id="41" value="02500029"/>
  <field id="42" value="3342517539     "/>
  <field id="49" value="752"/>
  <field id="52" value="F0F1F2F3F0F8F1F2" type="binary"/>
  <field id="53" value="5678"/>
  <field id="55" value="C1C7D5E200016C6DEB986D9C0EE506010A03A400008458F8220045000000800008091500000000006500075207525C000000000000000080" type="binary"/>
</isomsg>

tobias.a...@gmail.com

unread,

Oct 16, 2014, 5:16:44 AM10/16/14

to jpos-...@googlegroups.com

Hi,

this will really help me alot. I was trying to do what you did to decode the message manually from unpacked format (F1F1F0....) but was struggeling. How are you doing it so that you discovered that field 52 was not correct?

The message is actually being constructed by Amex Java SDK that we are using for communicating with Amex. Since this is code written and released by Amex I have no possibility to modify that. I am writing a simulator to validate that our systems are working as per requirement. But if the message is wrong as you are saying then I need to contact Amex for further investigations

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...

Victor Salaman

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Oct 16, 2014, 6:12:13 AM10/16/14

to jpos-...@googlegroups.com

Hi:

After a while you develop the skill of reading hex dumps :)

One thing that would help you, is if you turn on logging for the package.

import org.jpos.iso.ISOException;
import org.jpos.iso.ISOMsg;
import org.jpos.iso.ISOPackager;
import org.jpos.iso.ISOUtil;
import org.jpos.iso.packager.GenericPackager;
import org.jpos.util.Logger;
import org.jpos.util.SimpleLogListener;

public class TST1
{
    public static void main(String[] args) throws ISOException
    {
        Logger.getLogger("Q2").addListener(new SimpleLogListener(System.out));

        String s="F1F1F0F0703425E008C09A00F1F6F4F4" +
                 "F4F4F2F2F2F2F3F3F3F3F1F1F1F1F0F0" +
                 "F4F0F0F0F0F0F0F0F0F0F0F0F2F1F0F0" +
                 "F1F2F3F4F5F6F0F9F0F1F3F1F1F6F5F9" +
                 "F4F5F1F2F0F1F0F3F6F5F0F0F0F0F0E6" +
                 "F5F4F0F0F0F1F0F0F1F9F0F0F5F3F1F1" +
                 "F6F0F0F0F0F9F0F1F2F3F4F5F6F0F2F5" +
                 "F0F0F0F2F9F3F3F4F2F5F1F7F5F3F940" +
                 "40404040F7F5F2F0F1F2F3F0F8F1F2F0" +
                 "F4F5F6F7F8F0F5F6C1C7D5E200016C6D" +
                 "EB986D9C0EE506010A03A400008458F8" +
                 "22004500000080000809150000000000" +
                 "6500075207525C000000000000000080";

        byte[] rawBytes = ISOUtil.hex2byte(s);

        try
        {
            ISOPackager packager = new GenericPackager("amex.xml");
            packager.setLogger(Logger.getLogger("Q2"),"main");

            ISOMsg m = new ISOMsg();
            m.setPackager(packager);
            m.unpack(rawBytes);
        }
        catch (ISOException e)
        {
            e.printStackTrace();
        }
    }
}

That would produce debug information as your packager is unpacking the data. Hopefully you can determine what happened by looking where unpacked stopped and how sane is the data before it stopped.

Within your code that uses the AMEX Java SDK, comment/remove the line of code that sets PIN data (the one you are setting to ‘01230812345678’) and the SDK won’t produce the incorrect message. In other words, the SDK might be correct and you might just be using it incorrectly. The pinblock data should 8 bytes (binary) and you're setting the field to 16 bytes and that's confusing the SDK, therefore producing incorrect data.

I hope this helps,

--

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