Trying to build OES Function Evaluation extension, but which JARs are needed?

Hi,

I am trying to build a custom OES "Function":

7.2.1 Implementing a Custom Function

The following procedure details the steps to take when implementing a custom function in your policy.

1. Write the custom code for the function. See Example 7-6.
2. Compile the Java code and create a jar file.Add the complied class to the class path.
3. Restart the servers.

But, I cannot compile the function, because there are several reference that aren't resolved:

Description	Resource	Path	Location	Type
The import com.wles cannot be resolved	MyCustomFunction.java	/MyCustomFunction/src/oracle/security/oes/extensions	line 13	Java Problem
The import com.bea.security.providers cannot be resolved