ISOException: Invalid message length

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The Story Teller Nepal

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Jul 10, 2022, 10:21:17 AM7/10/22

to jPOS Users

Dear Team,

I am facing following issue of message length, I don't where and how to make the change please help

<field id="0" value="0200"/>
<field id="2" value="XXXXNPKA"/>
<field id="3" value="401010"/>
<field id="4" value="1000000"/>
<field id="7" value="0621020820"/>
<field id="11" value="749783"/>
<field id="12" value="020820"/>
<field id="13" value="0621"/>
<field id="14" value="0000"/>
<field id="15" value="0621"/>
<field id="18" value="6011"/>
<field id="22" value="901"/>
<field id="25" value="00"/>
<field id="32" value="15548131"/>
<field id="35" value="0000000000000000000000000000000000000"/>
<field id="37" value="220621749783"/>
<field id="41" value="15548131"/>
<field id="42" value="000000000000001"/>
<field id="43" value="ABC BFIS NP"/>
<field id="49" value="524"/>
<field id="102" value="B0019916033100"/>
<field id="103" value="B006006003771T"/>
<field id="123" value="FPAY:IBFT:49795237:1209:XXXXNPKA:ZZZZNPKA:SUNIL "/>
<field id="124" value="ABC5-20632345"/>
</isomsg>
</send>

<log realm="channel/10.20.102.103:5006" at="2022-06-21T14:08:21.670577" lifespan="1420ms">
<receive>
<iso-exception>
Invalid message length ^M
02
org.jpos.iso.ISOException: Invalid message length ^M
02
at org.jpos.iso.channel.ASCIIChannel.getMessageLength(ASCIIChannel.java:118)
at org.jpos.iso.BaseChannel.receive([BaseChannel.java:704|https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fBaseChannel.java%3a704&c=E,1,vx7GEXlD6UbDX2PE7lGkY1K9a1YUfdEDuU93Zm42llQS5BnkbjV8hhasaLI3NBwp-Mcxg_nzcM13YzpeaY0di6c4Gv_5JoVlu2ONWRaaYkWAcl9d22pC09Fi7vHx&typo=1&ancr_add=1])
at org.jpos.q2.iso.ChannelAdaptor${color}[Receiver.run|https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fReceiver.run&c=E,1,ugcX6xCZJ24rblhzdNzog6e1Gx8ALQOWfJ1TvlNR2aUJgl0IMN47koH6pdH877e32u4v13eOycxrxe5bDY8Gsag2cHzB9yKsfYjcDo88eYX3fN3Y&typo=1&ancr_add=1]([ChannelAdaptor.java:318|https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fChannelAdaptor.java%3a318&c=E,1,DGmkDTadSIGYRHDJhxQs5TCWFkzttigntDOeN_Xmr5_NgXtcUR1v2HqehJB6_ogRtsON5469-k70S6zbUMZ2fbcLitSc6zkV8Xj1EyB9wg,,&typo=1&ancr_add=1])
at java.base/[java.lang.Thread.run|https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fjava.lang.Thread.run&c=E,1,PHLrf7pDl2qVTLie-eqZYrAUpIGq9CQAQxziTDG8cVHlpFqq8FMWrO0Y8vcDNNk4z989aHuzTrVsbYMUjYIrqTJDjpvDAIHZR-Q06UyS7AI07k_z&typo=1&ancr_add=1]([Thread.java:834|https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fThread.java%3a834&c=E,1,_LJxbi9aG3geMH2W4MAb7zysSjUeZgJSatusDOVL0OYjzCObDLtynRa59JrZc3hf5hxaCMV4cnvRSUKhRVfAD9l5GEbt3f9xW1tCBpKt&typo=1&ancr_add=1])
</iso-exception>
</receive> </log>

murtuza chhil

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Jul 24, 2022, 10:52:25 PM7/24/22

to jPOS Users

The channel you use determines how the length is extracted.

You are using AsciiChannel and the length of the message is determined by

https://github.com/jpos/jPOS/blob/master/jpos/src/main/java/org/jpos/iso/channel/ASCIIChannel.java#L107-L122

You need to pick the right channel. The possibility here is you sent a message and the receiver could not understand what you sent as it could not unpack your message based on how your channel indicated the length and the receiver is sending you a message saying there was problem with your message.