module add --name=org.postgresql --resources=~/Downloads/postgresql-9.4-1203.jdbc42.jar --dependencies=javax.api,javax.transaction.api

batch
/subsystem=datasources/jdbc-driver=org.postgresql:add(driver-name=org.postgresql, driver-module-name=org.postgresql, driver-xa-datasource-class-name=org.postgresql.xa.PGXADataSource)
/subsystem=datasources/data-source=postgresql:add(driver-name=org.postgresql, jndi-name="java:/jdbc/PostgresDS", enabled=true, connection-url="jdbc:postgresql://localhost/test")
run-batch