correctly set up my main file so that jars run that

6 jobs for forgettingExperiments in 1 minute and 3 seconds (queued for 4 seconds)
Status Job ID Name Coverage
passed jars-j8 #35279


failed java8 #35278


skipped java7 #35280
allowed to fail
skipped maven36-java11 #35282
allowed to fail
skipped maven36-java13 #35283
allowed to fail
skipped maven36-java8 #35281
allowed to fail
Name Stage Failure
java8 Build
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (
at org.codehaus.plexus.classworlds.launcher.Launcher.main (
33167 [ERROR]
33167 [ERROR] Re-run Maven using the -X switch to enable full debug logging.
33168 [ERROR]
33168 [ERROR] For more information about the errors and possible solutions, please read the following articles:
33168 [ERROR] [Help 1]
Cleaning up file based variables
ERROR: Job failed: exit code 1