Console Output

Established TCP socket on 37094
<===[JENKINS REMOTING CAPACITY]===>channel started
Executing Maven:  -B -f /var/lib/jenkins/jobs/CitizensAPI/workspace/pom.xml -amd -pl net.citizensnpcs:citizensapi clean install javadoc:javadoc
[INFO] Scanning for projects...
[INFO] 
[INFO] --------------------< net.citizensnpcs:citizensapi >--------------------
[INFO] Building CitizensAPI 2.0.27-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ citizensapi ---
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ citizensapi ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /var/lib/jenkins/jobs/CitizensAPI/workspace/src/main/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ citizensapi ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 230 source files to /var/lib/jenkins/jobs/CitizensAPI/workspace/target/classes
[INFO] /var/lib/jenkins/jobs/CitizensAPI/workspace/src/main/java/net/citizensnpcs/api/astar/pathfinder/Path.java: Some input files use or override a deprecated API.
[INFO] /var/lib/jenkins/jobs/CitizensAPI/workspace/src/main/java/net/citizensnpcs/api/astar/pathfinder/Path.java: Recompile with -Xlint:deprecation for details.
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /var/lib/jenkins/jobs/CitizensAPI/workspace/src/main/java/net/citizensnpcs/api/trait/trait/Equipment.java:[231,20] net.citizensnpcs.api.trait.trait.Equipment.ArmorStandEquipmentWrapper is not abstract and does not override abstract method getItem(org.bukkit.inventory.EquipmentSlot) in org.bukkit.inventory.EntityEquipment
[ERROR] /var/lib/jenkins/jobs/CitizensAPI/workspace/src/main/java/net/citizensnpcs/api/trait/trait/Equipment.java:[461,20] net.citizensnpcs.api.trait.trait.Equipment.PlayerEquipmentWrapper is not abstract and does not override abstract method getItem(org.bukkit.inventory.EquipmentSlot) in org.bukkit.inventory.EntityEquipment
[INFO] 2 errors 
[INFO] -------------------------------------------------------------
Started calculate disk usage of build
Finished Calculation of disk usage of build in 0 seconds
Started calculate disk usage of workspace
Finished Calculation of disk usage of workspace in 0 seconds
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  12.017 s
[INFO] Finished at: 2020-06-25T09:24:10Z
[INFO] ------------------------------------------------------------------------
Waiting for Jenkins to finish collecting data
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project citizensapi: Compilation failure: Compilation failure:
[ERROR] /var/lib/jenkins/jobs/CitizensAPI/workspace/src/main/java/net/citizensnpcs/api/trait/trait/Equipment.java:[231,20] net.citizensnpcs.api.trait.trait.Equipment.ArmorStandEquipmentWrapper is not abstract and does not override abstract method getItem(org.bukkit.inventory.EquipmentSlot) in org.bukkit.inventory.EntityEquipment
[ERROR] /var/lib/jenkins/jobs/CitizensAPI/workspace/src/main/java/net/citizensnpcs/api/trait/trait/Equipment.java:[461,20] net.citizensnpcs.api.trait.trait.Equipment.PlayerEquipmentWrapper is not abstract and does not override abstract method getItem(org.bukkit.inventory.EquipmentSlot) in org.bukkit.inventory.EntityEquipment
[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