Established TCP socket on 34847
<===[JENKINS REMOTING CAPACITY]===> channel started
Executing Maven: -B -f /var/lib/jenkins/jobs/Webizen/workspace/pom.xml clean install
[INFO] Scanning for projects...
[HUDSON] Collecting dependencies info
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Webizen 0.2.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading: http://repo.bukkit.org/content/groups/public/org/bukkit/bukkit/1.13.2-R0.1-SNAPSHOT/maven-metadata.xml
Downloading: http://repo.citizensnpcs.co/org/bukkit/bukkit/1.13.2-R0.1-SNAPSHOT/maven-metadata.xml
[WARNING] Could not transfer metadata org.bukkit:bukkit:1.13.2-R0.1-SNAPSHOT/maven-metadata.xml from/to bukkit-repo (http://repo.bukkit.org/content/groups/public/): Error transferring file: repo.bukkit.org
Downloading: http://repo.bukkit.org/content/groups/public/org/bukkit/bukkit/1.13.2-R0.1-SNAPSHOT/maven-metadata.xml
[WARNING] Could not transfer metadata org.bukkit:bukkit:1.13.2-R0.1-SNAPSHOT/maven-metadata.xml from/to bukkit-repo (http://repo.bukkit.org/content/groups/public/): Error transferring file: repo.bukkit.org
[WARNING] The POM for net.aufdemrand:denizen:jar:1.0.3-SNAPSHOT is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details
[INFO]
[INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ webizen ---
[INFO] Deleting /var/lib/jenkins/jobs/Webizen/workspace/target
[INFO]
[INFO] --- maven-resources-plugin:2.4.3:resources (default-resources) @ webizen ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ webizen ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 10 source files to /var/lib/jenkins/jobs/Webizen/workspace/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[INFO] 1 error
[INFO] -------------------------------------------------------------
[WARNING] Attempt to (de-)serialize anonymous class org.jfrog.hudson.maven2.MavenDependenciesRecorder$1; see: https://jenkins.io/redirect/serialization-of-anonymous-classes/
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: 3.277s
[INFO] Finished at: Mon Feb 25 20:20:34 GMT 2019
[INFO] Final Memory: 11M/100M
[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 webizen: Compilation failure
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[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