Hi,
I believe the following code in the jakarta jersey reference examples has been deprecated and should not be part of jakarta.
If that is the case You may to wish to look into it.
I have identified the files in question using the *.nix scripting language (A flexible therefore a powerful tool).
import jakarta.annotation.ManagedBean;
@ManagedBean
$ grep -RiIl '@ManagedBean'
managed-beans-webapp/src/main/java/org/glassfish/jersey/examples/managedbeans/resources/ManagedBeanSingletonResource.java
managed-beans-webapp/src/main/java/org/glassfish/jersey/examples/managedbeans/resources/ManagedBeanExceptionMapper.java
managed-beans-webapp/src/main/java/org/glassfish/jersey/examples/managedbeans/resources/ManagedBeanPerRequestResource.java
managed-beans-webapp/README.MD
helloworld-weld/src/main/java/org/glassfish/jersey/examples/helloworld/App.java
cdi-webapp/src/main/java/org/glassfish/jersey/examples/cdi/resources/MySingletonResource.java
cdi-webapp/src/main/java/org/glassfish/jersey/examples/cdi/resources/MyOtherResource.java
cdi-webapp/src/main/java/org/glassfish/jersey/examples/cdi/resources/HelloWorldResource.java
cdi-webapp/src/main/java/org/glassfish/jersey/examples/cdi/resources/EchoParamFieldResource.java
cdi-webapp/src/main/java/org/glassfish/jersey/examples/cdi/resources/EchoParamResource.java
cdi-webapp/src/main/java/org/glassfish/jersey/examples/cdi/resources/EchoParamConstructorResource.java
Quick grep explanation:
-R - recursive search
-i - case-insensitive
-I - skip binary files
-l - print a simple list as output.