ActiveMQ Artemis 2.20.0 requires Java 11 or above. This is noted in several places:
1) the release notes [1] 2) the release announcement [2] on this mailing list 3) this thread [3] on this mailing list regarding any users who still need Java 8 support Justin [1] https://activemq.apache.org/components/artemis/download/release-notes-2.20.0 [2] https://lists.apache.org/thread/5174j00n0dmsk0wyhd0c4pv1t4lhl8xw [3] https://lists.apache.org/thread/tbmrgvgq3scpbpmns9ndnqhc1nb93zr5 On Thu, Jan 20, 2022 at 8:37 AM Sergei Vaisman <vays...@live.com> wrote: > Hello. > > I'm trying to upgrade from artemis 2.19 to 2.20 and see that for 2.20 I > need to use at least java 11: > > > artemis create broker2 > Error: A JNI error has occurred, please check your installation and try > again > Exception in thread "main" java.lang.UnsupportedClassVersionError: > org/apache/activemq/artemis/boot/Artemis has been compiled by a more recent > version of the Java Runtime (class file version 55.0), this version of the > Java Runtime only recognizes class file versions up to 52.0 > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:756) > at > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) > at java.net.URLClassLoader.defineClass(URLClassLoader.java:468) > at java.net.URLClassLoader.access$100(URLClassLoader.java:74) > at java.net.URLClassLoader$1.run(URLClassLoader.java:369) > at java.net.URLClassLoader$1.run(URLClassLoader.java:363) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:362) > at java.lang.ClassLoader.loadClass(ClassLoader.java:418) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355) > at java.lang.ClassLoader.loadClass(ClassLoader.java:351) > at > sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:601) > > > Accordingly to the latest documentation, java 1.8 is required version: > > https://activemq.apache.org/components/artemis/documentation/latest/using-server.html > "Please note that Apache ActiveMQ Artemis requires a Java 8 or later." > > So, is this statement in documentation outdated and for version 2.20 JDK > 11 is required? > Or is the distributive from Downloads is built using wrong compiler > version? > > > -- > Regards, > Sergei Vaisman >
