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[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] citizens-parent ................................... SUCCESS [1.294s]
[INFO] citizens-main ..................................... SUCCESS [15.247s]
[INFO] citizens-v1_8_R3 .................................. FAILURE [5.095s]
[INFO] citizens-v1_10_R1 ................................. SKIPPED
[INFO] citizens-v1_11_R1 ................................. SKIPPED
[INFO] citizens-v1_12_R1 ................................. SKIPPED
[INFO] citizens-v1_13_R2 ................................. SKIPPED
[INFO] citizens .......................................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 23.162s
[INFO] Finished at: Tue Sep 18 10:18:50 GMT 2018
[INFO] Final Memory: 35M/225M
[INFO] ------------------------------------------------------------------------
Waiting for Jenkins to finish collecting data
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project citizens-v1_8_R3: Compilation failure
[ERROR] /var/lib/jenkins/jobs/Citizens2/workspace/v1_8_R3/src/main/java/net/citizensnpcs/nms/v1_8_R3/network/EmptyNetworkManager.java:[21,4] error: method does not override or implement a method from a supertype
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :citizens-v1_8_R3
Started
Build failed before it gets to this module
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Finished: NOT_BUILT