The spec says:-
The hash code of an annotation member is
33(hash code of member name) + hash code of member value

Please find the code below:-
 import java.lang.annotation.*;

@Retention(RetentionPolicy.RUNTIME)
public @interface SampleAnnotations {

   String id();
}

@SampleAnnotations(id="It is the simple test") public class LibSupportTest1 {
   
   public void assertion1() {
   
      Annotation sm_ref1 = LibSupportTest1.class.getAnnotation(SampleAnnotations.class);
      int auto_hashCode = sm_ref1.hashCode();
      int manual_hashCode = assertion2();
      int diff = auto_hashCode - manual_hashCode;
      if(diff == 0) {
           System.out.println("The test passed");
      } else {
           System.out.println("The auto_hashCode is :"+auto_hashCode);
           System.out.println("The manual_hashCode is :"+manual_hashCode);
           System.out.println("The test failed diff in hashCode is :"+diff);
      }
           
   }
   
 public int assertion2() {
       // computing hasCode according to the specified algo
       String member_value = "It is the simple test";
       String member_name = "id";
       int code = 33*member_name.hashCode() + member_value.hashCode();
       return code;
 }
   
   
   
   public static void main(String args[]) {
       LibSupportTest1 ref = new LibSupportTest1();
       ref.assertion1();
   }

}

Output on Solaris-9 using Tiger-beta2 build41 :-

The auto_hashCode is :-2113679460
The manual_hashCode is :-2113679477
The test failed diff in hashCode is :17