trying to keep support for java 1.6

5 jobs for master in 12 minutes and 34 seconds (queued for 12 minutes and 39 seconds)
Status Job ID Name Coverage
  Build
passed #8288
jars-j8

00:00:34

failed #8287
java8

00:11:59

 
  Test
skipped #8291
allowed to fail
java11
skipped #8289
java6
skipped #8290
java7
 
Name Stage Failure
failed
java8 Build
703185 [ERROR] 
703185 [ERROR] Re-run Maven using the -X switch to enable full debug logging.
703185 [ERROR]
703185 [ERROR] For more information about the errors and possible solutions, please read the following articles:
703186 [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
703186 [ERROR]
703186 [ERROR] After correcting the problems, you can resume the build with the command
703186 [ERROR] mvn <goals> -rf :org.ow2.sat4j.sat
ERROR: Job failed: exit code 1