Problem with java versioning.

[Bambofy]

Hi,

Trying to use the ditaa with asciidoctor results in an error with Java.

PS C:\Users\Richa\adprac> asciidoctor -r asciidoctor-diagram test.adoc Exception in thread "main" java.lang.UnsupportedClassVersionError: org/asciidoctor/diagram/StdInOutCommandServer 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(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$100(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source) asciidoctor: ERROR: test.adoc: line 5: Failed to generate image: Error processing request {:url=>"/ditaa", :body=>"┌────────────────┐\n│ │\n│ │\n│ ├──────────────────────┬─────────────────────────────────────────┐\n│ │ │ │\n│ │ │ │\n└───────┬────────┘ │ │\n │ │ │\n │ │ │\n │ ▼ │\n │ ┌──────────────────┐ │\n │ │ │ │\n │ │ │ │\n └─────────────────────►│ │ │\n │ │ │\n │ │ │\n │ │ │\n │ │ │\n └──────────────────┘ │\n ▲ │\n │ │\n │ ▼\n │ ┌───────────────────┐\n │ │ │\n │ │ │\n │ │ │\n │ │ │\n │ │ │\n │ │ │\n │ │ │\n │ │ │\n │ └───────────────────┘\n │\n │\n │\n │\n │\n │\n │", :headers=>{"Accept"=>"image/png", "X-Options"=>""}} Encoding of input is UTF-8 C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/asciidoctor-diagram-2.2.9/lib/asciidoctor-diagram/util/java_socket.rb:34:in kill': No such process (Errno::ESRCH) from C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/asciidoctor-diagram-2.2.9/lib/asciidoctor-diagram/util/java_socket.rb:34:inshutdown' from C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/asciidoctor-diagram-2.2.9/lib/asciidoctor-diagram/util/java_socket.rb:53:in block in instance' C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/asciidoctor-2.0.20/bin/asciidoctor:16:inexit': exit (SystemExit) from C:/Ruby32-x64/lib/ruby/gems/3.2.0/gems/asciidoctor-2.0.20/bin/asciidoctor:16:in <top (required)>' from C:/Ruby32-x64/bin/asciidoctor:32:inload' from C:/Ruby32-x64/bin/asciidoctor:32:in `

'

Thank you.

[pepijnve]

That's expected. A Java 11 or higher runtime is required. You're using a Java 8 runtime.