Getting Started Documentation instructions fail

[mygeorgyboy]

1)

I have Diamond zip file type:

sass --update src/main/webapp/resources:src/main/webapp/resources --no-source-map
mvn clean jetty:run

as it's shown in https://primefaces.org/diamond/documentation.xhtml

[INFO] Started Jetty Server. <- Jetty starts OK

when I access http://localhost:8080/diamond/ i get this error in the browser screen
java.lang.IllegalStateException: Cannot get Unsafe.defineClass or equivalent

2) Is there a guide to incorporate

diamond-theme-4.1.0-jakarta.jar and diamond-layout-4.1.0.zip to an existing jakarta project ?

[mert.sincan]

We don't have any jakarta documentation related to layout ports. Unfortunately, you need to change Diamond*.java and config files manually.

Best Regards,