Your class requires multiple resources defined, as shown in the following:
Which annotation do you use to group multiple @Resource declarations together for class-based injection, replacing <XXXX> in the code above?
A. @Resources
B. @Resource
C. @ResourceGroup
D. @ResourceCollection
The correct answer is A: @Resources
The same example can be found in Java EE6 -> https://docs.oracle.com/javaee/6/tutorial/doc/bncjk.html