Established TCP socket on 37647 <===[JENKINS REMOTING CAPACITY]===>channel started Established TCP socket on 41719 <===[JENKINS REMOTING CAPACITY]===>channel started Executing Maven: -B -f /var/lib/jenkins/jobs/d1_cn_version_tool_beta/workspace/d1_cn_version_tool/pom.xml clean install javadoc:javadoc [INFO] Scanning for projects... [WARNING] [WARNING] Some problems were encountered while building the effective model for org.dataone:d1_cn_version_tool:jar:2.3.0 [WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-plugin is missing. @ line 16, column 12 [WARNING] 'build.plugins.plugin.version' for org.codehaus.mojo:buildnumber-maven-plugin is missing. @ line 24, column 21 [WARNING] [WARNING] It is highly recommended to fix these problems because they threaten the stability of your build. [WARNING] [WARNING] For this reason, future Maven versions might no longer support building such malformed projects. [WARNING] [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building DataONE CN Component Version Tool 2.3.0 [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-clean-plugin:2.3:clean (default-clean) @ d1_cn_version_tool --- [INFO] [INFO] --- buildnumber-maven-plugin:1.4:create (default) @ d1_cn_version_tool --- [INFO] Executing: /bin/sh -c cd '/var/lib/jenkins/jobs/d1_cn_version_tool_beta/workspace/d1_cn_version_tool' && 'svn' '--non-interactive' 'info' [INFO] Working directory: /var/lib/jenkins/jobs/d1_cn_version_tool_beta/workspace/d1_cn_version_tool [INFO] Storing buildNumber: 18828 at timestamp: 1497184358487 [INFO] Executing: /bin/sh -c cd '/var/lib/jenkins/jobs/d1_cn_version_tool_beta/workspace/d1_cn_version_tool' && 'svn' '--non-interactive' 'info' [INFO] Working directory: /var/lib/jenkins/jobs/d1_cn_version_tool_beta/workspace/d1_cn_version_tool [INFO] Storing buildScmBranch: branches/D1_CN_VERSION_TOOL_v2.3 [INFO] [INFO] --- maven-resources-plugin:2.3:resources (default-resources) @ d1_cn_version_tool --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 0 resource [INFO] [INFO] --- maven-compiler-plugin:2.0.2:compile (default-compile) @ d1_cn_version_tool --- [INFO] Compiling 5 source files to /var/lib/jenkins/jobs/d1_cn_version_tool_beta/workspace/d1_cn_version_tool/target/classes Notifying upstream projects of job completion Join notifier requires a CauseAction [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 5.876s [INFO] Finished at: Sun Jun 11 12:32:39 UTC 2017 [INFO] Final Memory: 18M/238M [INFO] ------------------------------------------------------------------------ Waiting for Jenkins to finish collecting data[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.0.2:compile (default-compile) on project d1_cn_version_tool: Compilation failure [ERROR] Unable to locate the Javac Compiler in: [ERROR] /usr/lib/jvm/java-8-openjdk-amd64/jre/../lib/tools.jar [ERROR] Please ensure you are using JDK 1.4 or above and [ERROR] not a JRE (the com.sun.tools.javac.Main class is required). [ERROR] In most cases you can change the location of your Java [ERROR] installation by setting the JAVA_HOME environment variable. [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