Jenkins unable to run Maven
Here it is:
Caused by: java.lang.NoClassDefFoundError: org/apache/maven/cli/MavenLoggerManager at org.jvnet.hudson.maven3.launcher.Maven3Launcher.main(Maven3Launcher.java:73) ... 18 more
If you're not letting Jenkins install Maven, then you need to configure the location of the Maven installation it should use.