Can't publish java xml stored procedure

Question

I have written a java class to return values from the database as XML using the XSU, and am attempting to publish the class as a stored procedure. I have successfully created other java stored procedures, but am continually getting the following error on this one:
ORA-29531: no method getItems in class foo/bar/Inbox
To illustrate the interface which I am trying to implement, snippets from the java class and the Oracle package follow:
===========================================
Java class:
package foo.bar;
import oracle.sql.CLOB;
import other.stuff;
public class Inbox {
public static void getItems(int userID,
CLOB[] xml)
===========================================
Oracle package spec:
PROCEDURE getItems(user_id IN PLS_INTEGER,
buf IN OUT NOCOPY CLOB);
Package body:
PROCEDURE getItems(user_id IN PLS_INTEGER,
buf IN OUT NOCOPY CLOB)
AS LANGUAGE JAVA NAME
'foo.bar.Inbox.getItems(java.lang.Integer,
oracle.sql.CLOB[])';
===========================================
I originally structured the class to return the CLOB, but altered the structure to handle the CLOB as an IN OUT parameter so that the NOCOPY option modifier could be used, as suggested in S. Muench's book. I was surprised to hear that Oracle creates an in-memory copy of the return value from a function (wish I'd known this before).
All suggestions appreciated.
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Answer 1

When I use JDeveloper's automatic Java Stored Procedure publishing feature, I get a PL/SQL spec that looks like this:
CREATE OR REPLACE PACKAGE EXPERIMENTALWORK
AUTHID CURRENT_USER AS
PROCEDURE GETITEMS ("userID" IN NUMBER,
"xml" IN OUT CLOB)
AS LANGUAGE JAVA
NAME 'foo.bar.Inbox.getItems(int, oracle.sql.CLOB[])';
END EXPERIMENTALWORK;You still have to add the NOCOPY by hand, but perhaps the int versus java.lang.Integer is significant?