The AS400 PCML(Program Call Markup Language) connector allows to invoke an programs on an IBM AS400(iSeries) server.
mvn clean install
Download the JTOpen library from https://sourceforge.net/projects/jt400/ and place the jt400.jar inside the <ESB_HOME>/repository/components/lib folder.
Visit the following link on how to add, enable and removing a connector in ESB. https://docs.wso2.com/display/ESB500/Working+with+Connectors+via+the+Management+Console
You can create a third party connector and publish in WSO2 Connector Store.