java.lang.UnsupportedClassVersionError: org/red5/server/Launcher : Unsupported major.minor version 51.0

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via Google Groups by Marcus Haebler

Update "latest" to Java 8 on DockerHub.

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This might be caused by and outdated version of Java, SonarQube now uses Java 8 as default. You might upgrade java or use an older version of SonarQube.

Solutions on the web

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, 1 year ago
org/red5/server/Launcher : Unsupported major.minor version 51.0
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org/hipi/tools/HibImport : Unsupported major.minor version 51.0
java.lang.UnsupportedClassVersionError: org/red5/server/Launcher : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:643)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:274)
at org.red5.server.Bootstrap.bootStrap(Bootstrap.java:121)
at org.red5.server.Bootstrap.main(Bootstrap.java:48)

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