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[INFO] 
[INFO] -----------------< net.citizensnpcs:citizens-v1_16_R1 >-----------------
[INFO] Building citizens-v1_16_R1 2.0.27-SNAPSHOT                       [10/11]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ citizens-v1_16_R1 ---
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ citizens-v1_16_R1 ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /var/lib/jenkins/jobs/Citizens2/workspace/v1_16_R1/src/main/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ citizens-v1_16_R1 ---
[INFO] Changes detected - recompiling the module!
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[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] citizens-parent 2.0.27-SNAPSHOT .................... SUCCESS [  1.110 s]
[INFO] citizens-main 2.0.27-SNAPSHOT ...................... SUCCESS [ 12.822 s]
[INFO] citizens-v1_8_R3 2.0.27-SNAPSHOT ................... SUCCESS [  9.315 s]
[INFO] citizens-v1_10_R1 2.0.27-SNAPSHOT .................. SUCCESS [  7.790 s]
[INFO] citizens-v1_11_R1 2.0.27-SNAPSHOT .................. SUCCESS [ 12.395 s]
[INFO] citizens-v1_12_R1 2.0.27-SNAPSHOT .................. SUCCESS [ 10.124 s]
[INFO] citizens-v1_13_R2 2.0.27-SNAPSHOT .................. SUCCESS [  8.070 s]
[INFO] citizens-v1_14_R1 2.0.27-SNAPSHOT .................. SUCCESS [ 13.119 s]
[INFO] citizens-v1_15_R1 2.0.27-SNAPSHOT .................. SUCCESS [  6.437 s]
[INFO] citizens-v1_16_R1 2.0.27-SNAPSHOT .................. FAILURE [  2.257 s]
[INFO] citizens 2.0.26-SNAPSHOT ........................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  01:30 min
[INFO] Finished at: 2020-06-25T09:45:14Z
[INFO] ------------------------------------------------------------------------
Waiting for Jenkins to finish collecting data
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project citizens-v1_16_R1: Fatal error compiling: UnsupportedOperationException -> [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/MojoExecutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :citizens-v1_16_R1