prepare

    [INFO] Results:
    [INFO]
    [WARNING] Tests run: 11, Failures: 0, Errors: 0, Skipped: 1
    [INFO]
    [INFO]
    [INFO] --- maven-jar-plugin:2.2:jar (default-jar) @ joni ---
    [INFO] Building jar: /opt/joni/target/joni.jar
    [INFO]
    [INFO] --- maven-source-plugin:2.1.2:jar-no-fork (attach-sources) @ joni ---
    [INFO] Building jar: /opt/joni/target/joni-sources.jar
    [INFO]
    [INFO] --- maven-javadoc-plugin:2.7:jar (attach-javadocs) @ joni ---
    [INFO]
    Loading source file /opt/joni/src/module-info.java...
    2 errors
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD FAILURE
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time: 18.097 s
    [INFO] Finished at: 2018-09-19T21:39:24+02:00
    [INFO] ------------------------------------------------------------------------
    [ERROR] Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:2.7:jar (attach-javadocs) on project joni: MavenReportException: Error while creating archive:
    [ERROR] Exit code: 1 - /opt/joni/src/module-info.java:6: error: module not found: org.jruby.jcodings
    [ERROR]     requires org.jruby.jcodings;
    [ERROR]                       ^
    [ERROR] /opt/joni/src/module-info.java:7: error: module not found: org.objectweb.asm
    [ERROR]     requires org.objectweb.asm;
    [ERROR]                           ^
    [ERROR]
    [ERROR] Command line was: /opt/jdk/bin/javadoc @options @packages @argfile
    [ERROR]
    [ERROR] Refer to the generated Javadoc files in '/opt/joni/target/apidocs' dir.
    [ERROR]
    [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/MojoExecutionException
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 22.124 s
[INFO] Finished at: 2018-09-19T21:39:24+02:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-release-plugin:2.1:prepare (default-cli) on project joni: Maven execution failed, exit code: '1' -> [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: