B4J Question PyBridge question

[T201016]

Hi,
I used a new Pybridge project for testing
And as a result of the compilation of this project, I received a message with an error:

javac 1.8.0_441
src\b4j\example\pyutils.java:888: error: cannot find symbol
public static void registerMultipleKeys(java.util.List<Object> objects, java.util.List<Integer> keys, java.lang.ref.Cleaner cleaner) {
^
symbol: class Cleaner
location: package java.lang.ref
1 error

As described, I created a copy of Python from the B4J installation path,
that is, with .. \ b4j \ libraries \ python

I apparently need help, what am I doing wrong?
Thank you in advance.

 

[teddybear]

Upgrade java8 to jdk 11+

 

[Erel]

Better to use Java 19: https://www.b4x.com/b4j.html

 

[T201016]

Better to use Java 19: https://www.b4x.com/b4j.html

It seems that after replacing the Java version, everything works now, thank you all for quick support.
PS. However, I used JDK 19.0.2.