Established TCP socket on 43821 Exception in thread "main" java.lang.UnsupportedClassVersionError: hudson/remoting/Launcher has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 55.0 at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1022) at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174) at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:555) at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:458) at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:452) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:451) at org.codehaus.plexus.classworlds.realm.ClassRealm.findClassInternal(ClassRealm.java:313) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(ClassRealm.java:432) at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42) at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239) at jenkins.maven3.agent.Maven35Main.main(Maven35Main.java:136) at jenkins.maven3.agent.Maven35Main.main(Maven35Main.java:66) Established TCP socket on 36331 <===[JENKINS REMOTING CAPACITY]===> channel started Executing Maven: -B -f /var/jenkins_home/workspace/LaterEvents/pom.xml clean package [INFO] Scanning for projects... [INFO] [INFO] --------------------< io.github.jbaero:laterevents >-------------------- [INFO] Building LaterEvents 1.1.0 [INFO] from pom.xml [INFO] --------------------------------[ jar ]--------------------------------- [WARNING] Could not transfer metadata com.sk89q:commandhelper:3.3.4-SNAPSHOT/maven-metadata.xml from/to maven-default-http-blocker (http://0.0.0.0/): Blocked mirror for repositories: [sk89q-mvn2 (http://maven.sk89q.com/repo, default, releases+snapshots)] [WARNING] com.sk89q:commandhelper:3.3.4-SNAPSHOT/maven-metadata.xml failed to transfer from http://0.0.0.0/ during a previous attempt. This failure was cached in the local repository and resolution will not be reattempted until the update interval of maven-default-http-blocker has elapsed or updates are forced. Original error: Could not transfer metadata com.sk89q:commandhelper:3.3.4-SNAPSHOT/maven-metadata.xml from/to maven-default-http-blocker (http://0.0.0.0/): Blocked mirror for repositories: [sk89q-mvn2 (http://maven.sk89q.com/repo, default, releases+snapshots)] [WARNING] Could not transfer metadata org.spigotmc:spigot-api:1.16.2-R0.1-SNAPSHOT/maven-metadata.xml from/to maven-default-http-blocker (http://0.0.0.0/): Blocked mirror for repositories: [sk89q-mvn2 (http://maven.sk89q.com/repo, default, releases+snapshots)] [WARNING] org.spigotmc:spigot-api:1.16.2-R0.1-SNAPSHOT/maven-metadata.xml failed to transfer from http://0.0.0.0/ during a previous attempt. This failure was cached in the local repository and resolution will not be reattempted until the update interval of maven-default-http-blocker has elapsed or updates are forced. Original error: Could not transfer metadata org.spigotmc:spigot-api:1.16.2-R0.1-SNAPSHOT/maven-metadata.xml from/to maven-default-http-blocker (http://0.0.0.0/): Blocked mirror for repositories: [sk89q-mvn2 (http://maven.sk89q.com/repo, default, releases+snapshots)] [INFO] [INFO] --- clean:3.2.0:clean (default-clean) @ laterevents --- [INFO] Deleting /var/jenkins_home/workspace/LaterEvents/target [INFO] [INFO] --- resources:3.3.1:resources (default-resources) @ laterevents --- [INFO] skip non existing resourceDirectory /var/jenkins_home/workspace/LaterEvents/src/main/resources [INFO] [INFO] --- compiler:2.3.2:compile (default-compile) @ laterevents --- [INFO] Compiling 3 source files to /var/jenkins_home/workspace/LaterEvents/target/classes [INFO] [INFO] --- processor:2.2.4:process (process) @ laterevents --- Processing io.github.jbaero.laterevents.LaterEventsExtension Extension 'LaterEvents' checks out ok! [WARNING] diagnostic: warning: Supported source version 'RELEASE_8' from annotation processor 'com.laytonsmith.core.extensions.ExtensionAnnotationProcessor' less than -source '21' [INFO] [INFO] >>> exec:1.2.1:java (cache-annotations) > validate @ laterevents >>> [WARNING] Failed to getClass for org.codehaus.mojo.exec.ExecJavaMojo [INFO] [INFO] <<< exec:1.2.1:java (cache-annotations) < validate @ laterevents <<< [INFO] [INFO] [INFO] --- exec:1.2.1:java (cache-annotations) @ laterevents --- -- Caching annotations -- Scanning for classes in /var/jenkins_home/workspace/LaterEvents/target/classes Outputting file to directory /var/jenkins_home/workspace/LaterEvents/target/classes Done writing jarInfo.ser, which took 442 ms. -- Checking for custom compile errors -- -- Finished with custom compiler checks -- [INFO] [INFO] --- resources:3.3.1:testResources (default-testResources) @ laterevents --- [INFO] skip non existing resourceDirectory /var/jenkins_home/workspace/LaterEvents/src/test/resources [INFO] [INFO] --- compiler:2.3.2:testCompile (default-testCompile) @ laterevents --- [INFO] No sources to compile [INFO] [INFO] --- surefire:3.2.2:test (default-test) @ laterevents --- [INFO] No tests to run. [JENKINS] Recording test results [INFO] [INFO] --- jar:3.3.0:jar (default-jar) @ laterevents --- [INFO] Building jar: /var/jenkins_home/workspace/LaterEvents/target/laterevents-1.1.0.jar [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 32.847 s [INFO] Finished at: 2025-05-20T22:52:14-06:00 [INFO] ------------------------------------------------------------------------ Waiting for Jenkins to finish collecting data