FAQ

jPOS FAQ

I want to create a transaction switch using jPOS 

You need to know all about payment systems, communications, security, and software development.

I don't know which jPOS version I'm running 

Run java -jar jpos.jar --version

What is jPOS, what can it be used for? 

click WhatIsjPOS for a description.

Are there any ISO-8583 specs available online? 

You can buy ISO-8583 specs here.

Is there a C version available? 

Yes! Please see here for details.

I've bought the Programmer's Guide. Am I entitled to priority support? 

No, Please check our commercial support options.

Which Java version do I need? 

Our baseline is Java 1.5.x.

Which is the latest version? 

The latest released version is 1.8.2.
The current development version is 1.8.3.
You can also get an usually up-to-date [1].

Which Subversion modules should I use? 

We have the following Subversion modules at the moment:

• branches: We don't use this subversion feature right now.
• tags: Is where you can find the sources of previous releases ordered by version number.
• trunk: Is the development tree, the 'bleeding edge'.

You can browse subversion for details.

I've got the modules from Subversion; how can I build them? 

• jPOS
  • You may require a few extra libraries in order to build jPOS, have a look at ext/README
  • bin/build clean jar will create dist/jpos-<version>.jar
  • please note that an usually up-to-date version of jpos.jar is available in q2modules/lib
• q2
  • bin/build dist would create the full tarball (including javadocs)
• q2modules
  • bin/build jars would create dist/q2mod_<modulename>.jar

Buy versus Build? 

There's a nice analysis in the BuyVersusBuild page.

Is there a "credit card processing usual terminology glossary" or FAQ available ? 

You may find what you are looking for in this glossary or in this FAQ

Where can I find information about pinblk, key management, etc.? 

Please have a look at ANS X9.24 specs. You can buy them online at ANSI.ORG
Have a look at org.jpos.security javadocs.

I've asked a question in jpos-dev mailing list, but I get no answers 

This will definately help: Smart Questions.

I found in the mailing lists the IM address of many jPOS developers, should I throw all my questions via IM to them?

NO! use the jpos-users mailing list please.

How can I use jPOS as an Eclipse project? 

Here you can find some instructions extracted from extracted from jpos-dev.

If you use jPOS-EE Here you can find detailed instructions to configure jPOS-EE in eclipse.

I'm trying to print to a printer model XXX 

Wrong project. Try JavaPOS, Mercator and FreeMercator

I'm having difficulty installing JPOS. I have downloaded the zip file from jPOS.org. can anyone help in the procedure for installation? 

You may get support in jpos-users. Please check the archives before asking, an answer to your question may be there already.

Is there a way to create my own package in jpos?