mvn package
Alternatively, if you want to skip the unit tests, you can:
mvn -Dmaven.test.skip=true package
cd jpos/target/jpos-x.x.x
java -jar jpos-x.x.x.jar
mvn archetype:generate \
-DarchetypeGroupId=org.jpos \
-DarchetypeArtifactId=jpos-archetype \
-DarchetypeVersion=1.8.6 \
-DarchetypeRepository=http://jpos.org/maven
mvn install
<repository>
<id>jpos</id>
<name>jPOS Central Repository</name>
<url> http://jpos.org/maven </url>
<layout>default</layout>
</repository>
<dependency>
<groupId>org.jpos</groupId>
<artifactId>jpos</artifactId>
<version>1.8.6</version>
</dependency>
See the ChangeLog: or visit the Resources page for additional information.