Cannot locate the BeanManager for JavaEE 6

[sesong11]

I try to run sample application using java 8 and zk 8.

https://github.com/zkoss/zkbooks/tree/master/developersreference/integration.cdi

and when I open cdiutil.zul it error

org.zkoss.xel.XelException: Cannot locate the BeanManager for JavaEE 6.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.zkoss.lang.Classes.newInstance(Classes.java:74)
at org.zkoss.lang.Exceptions.wrap(Exceptions.java:205)