By running knime from command line I got a more verbose error message:
“Caused by: java.lang.UnsupportedClassVersionError: org/knime/example/ExampleNodeNodeFactory has been compiled by a more recent version of the Java Runtime (class file version 66.0), this version of the Java Runtime only recognizes class file versions up to 61.0”
The problem is that if I try to compile my extension with jre lower than 22 my ant script will complain.
Is there any way to set the target JRE in knime to the more recent jre 22 that I have installed locally?