Console Output

Established TCP socket on 33037
<===[JENKINS REMOTING CAPACITY]===>channel started
Executing Maven:  -B -f /var/lib/jenkins/jobs/BuildTools/workspace/pom.xml clean install -Dbuild.number=145
[INFO] Scanning for projects...
[INFO] 
[INFO] ------------------------< org.spigotmc:builder >------------------------
[INFO] Building BuildTools 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ builder ---
[INFO] Deleting /var/lib/jenkins/jobs/BuildTools/workspace/target
[INFO] 
[INFO] --- scriptus:0.4.1:describe (default) @ builder ---
[INFO] Set property "describe" to "git-BuildTools-432456c-145"
[INFO] Set property "project.build.outputTimestamp" to "1643441566"
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ builder ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /var/lib/jenkins/jobs/BuildTools/workspace/src/main/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ builder ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 7 source files to /var/lib/jenkins/jobs/BuildTools/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] -------------------------------------------------------------
[JENKINS] Archiving disabled
[JENKINS] Archiving disabled
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  2.156 s
[INFO] Finished at: 2022-01-29T07:33:17Z
[INFO] ------------------------------------------------------------------------
Waiting for Jenkins to finish collecting data
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project builder: 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