unarchive step is messing everything

[eliassal]

Hi, can s know what this line really do
unarchive mapping: ['src.tar': '.', 'target/petclinic.war': 'petclinic.war']

The script In the node "performanceTest", this line generates ROOT.war directory inside which we find e "target" directory in which we have war file. When tomcat is restarted, it will not explode the war file as the war file in not in webapps directory. Can you please explain why

sh "cp -rf ${war} ${catalinaBase}/webapps/ROOT.war" creates all this mess?

2nd, can you please share a pointer to some documentation about the unarchive step as I was not successful in finding any information on Jenkins site

Thanks in advance