jvalue in QSYSINC/QRPGLESRC,JNI

[Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>]

I'm looking at the IBM-supplied copybook for the JNI APIs in QSYSINC. It 
defines jvalue as follows:

      D jvalue          DS                  QUALIFIED
      D                                     BASED(jvalue_P)
      D   z                                 LIKE(jboolean)
      D   b                                 LIKE(jbyte)
      D   c                                 LIKE(jchar)
      D   s                                 LIKE(jshort)
      D   i                                 LIKE(jint)
      D   j                                 LIKE(jlong)
      D   f                                 LIKE(jfloat)
      D   d                                 LIKE(jdouble)
      D   l                                 LIKE(jint)

Is this correct? The reason I ask is that when I use JNI on FreeBSD from C 
programs, the jvalue definition looks like this:

typedef union jvalue {
    jboolean z;
    jbyte    b;
    jchar    c;
    jshort   s;
    jint     i;
    jlong    j;
    jfloat   f;
    jdouble  d;
    jobject  l;
} jvalue;

The big difference is that the RPG definitions are a data structure.  The 
C definitions are a union!

Shouldn't the RPG definition look like the following?

      D jvalue          DS                  QUALIFIED
      D                                     BASED(jvalue_P)
      D   z                                 LIKE(jboolean)
      D                                     overlay(jvalue:1)
      D   b                                 LIKE(jbyte)
      D                                     overlay(jvalue:1)
      D   c                                 LIKE(jchar)
      D                                     overlay(jvalue:1)
      D   s                                 LIKE(jshort)
      D                                     overlay(jvalue:1)
      D   i                                 LIKE(jint)
      D                                     overlay(jvalue:1)
      D   j                                 LIKE(jlong)
      D                                     overlay(jvalue:1)
      D   f                                 LIKE(jfloat)
      D                                     overlay(jvalue:1)
      D   d                                 LIKE(jdouble)
      D                                     overlay(jvalue:1)
      D   l                                 LIKE(jint)
      D                                     overlay(jvalue:1)

Or does JNI work differently on the System i than it does on FreeBSD? ( or 
am I just nuts? )