B4J Question version of the Java Runtime

[Study anywhere software]

Error occurred during initialization of VM
java/lang/UnsupportedClassVersionError: java/lang/Object 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 55.0

 

[Daestrum]

It just means you are running Java 11 (ver 55) and a library has been compiled using java 22 (ver 66).

 

[Study anywhere software]

So try change to Jdk-14 's javac.exe and lib, run B4A/J simplest program, still have this problem,
Have any solution?

 

[xulihang]

Use latest JDK 23 as discussed here: https://www.b4x.com/android/forum/threads/trying-to-use-the-latest-java-23-and-javafx-23.161167/

 

[Study anywhere software]

Thanks to Xu L.H. I will try.