Hi,
java is not able to find your Beans.xml file,
Java searches for files in its classpath, you have to add the file location in classpath of project,
1) Make a config directory and add Beans.xml to that directory.
Then add config folder in Sources->Source Package Folders, in project properties
or 2) simply move you Beans.xml to src directory since src directory is already added in classpath by NetBeans.
Hope this might Helpful,
Regards,
Paddy