Tilman Hausherr created PDFBOX-6011:
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             Summary: Trunk build fails on jdk11
                 Key: PDFBOX-6011
                 URL: https://issues.apache.org/jira/browse/PDFBOX-6011
             Project: PDFBox
          Issue Type: Bug
    Affects Versions: 4.0.0
            Reporter: Tilman Hausherr
             Fix For: 4.0.0


https://ci-builds.apache.org/job/PDFBox/job/PDFBox-trunk/2588/console
Caused by: java.lang.UnsupportedClassVersionError: 
jenkins/security/MasterToSlaveCallable 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.lang.ClassLoader.defineClass(ClassLoader.java:883)
        at 
hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:470)
        ... 32 more

ERROR: 
================================================================================
ERROR: Invalid project setup: Failed to load 
hudson.maven.AbstractMavenProcessFactory$ConfigureOriginalJDK
ERROR: [JENKINS-18403][JENKINS-28294] JDK 'jdk_11_latest' not supported to run 
Maven projects.
ERROR: Maven projects have to be launched with a Java version greater or equal 
to the minimum version required by the controller.
ERROR: Use the Maven JDK Toolchains (plugin) to build your maven project with 
an older JDK.
ERROR: Retrying with agent Java and setting compile/test properties to point to 
/home/jenkins/tools/java/latest11.
ERROR: 
================================================================================


Class file version 61 means we have to use jdk17 on the ci



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