Trying to pass Oracle array/object type to Java

I have a Java class with two inner classes that are loaded into Oracle:
public class PDFJ
    public static class TextObject
        public String font_name;
        public int font_size;
        public String font_style;
        public String text_string;
    public static class ColumnObject
        public int left_pos;
        public int right_pos;
        public int top_pos;
        public int bottom_pos;
        public int leading;
        public TextObject[] column_texts;
}I have object types in Oracle as such that bind to the Java classes:
CREATE OR REPLACE TYPE "PROGRAMMER"."PDFJ_TEXT" AS OBJECT
EXTERNAL NAME 'PDFJ$TextObject'
LANGUAGE JAVA
USING SQLData(
  "FONT_NAME" VARCHAR2(25) EXTERNAL NAME 'font_name',
  "FONT_SIZE" NUMBER EXTERNAL NAME 'font_size',
  "FONT_STYLE" VARCHAR2(1) EXTERNAL NAME 'font_style',
  "TEXT_STRING" VARCHAR2(4000) EXTERNAL NAME 'text_string'
CREATE OR REPLACE TYPE "PROGRAMMER"."PDFJ_TEXT_ARRAY" AS
  TABLE OF "PROGRAMMER"."PDFJ_TEXT";
CREATE OR REPLACE TYPE "PROGRAMMER"."PDFJ_COLUMN" AS OBJECT
EXTERNAL NAME 'PDFJ$ColumnObject'
LANGUAGE JAVA
USING SQLData(
  "LEFT_POS" NUMBER EXTERNAL NAME 'left_pos',
  "RIGHT_POS" NUMBER EXTERNAL NAME 'right_pos',
  "TOP_POS" NUMBER EXTERNAL NAME 'top_pos',
  "BOTTOM_POS" NUMBER EXTERNAL NAME 'bottom_pos',
  "LEADING" NUMBER EXTERNAL NAME 'leading',
  "COLUMN_TEXTS" "PROGRAMMER"."PDFJ_TEXT_ARRAY" EXTERNAL NAME 'column_texts'
CREATE OR REPLACE TYPE "PROGRAMMER"."PDFJ_COLUMN_ARRAY" AS
    TABLE OF "PROGRAMMER"."PDFJ_COLUMN";
/I successfully (as far as I know) build a PDFJ_COLUMN_ARRAY object in a PL/SQL procedure. The PDFJ_COLUMN_ARRAY contains PDFJ_COLUMN objects; each of those objects contains a PDFJ_TEXT_ARRAY of PDFJ_TEXT objects (Example: pdf_column_array(i).pdf_text_array(i).text_string := 'something';). In this procedure, I pass this PDFJ_COLUMN_ARRAY as a parameter to a Java function. I assume the Java function parameter is supposed to be a oracle.sql.ARRAY object.
I cannot figure out how to decompose this generic ARRAY object into a ColumnObject[] array. I also tried Googling and searching the forums, but I can't figure out matching search criteria. I was wondering if anyone here knows anything about passing user-defined Oracle type objects to a Java function and retrieving the user-defined Java class equivalents that they are supposedly mapped to--especially a user-defined array type of user-defined object types containing another user-defined array type of user-defined object types.

Ok. I will try asking on the JDBC forum. So, don't
flame me for cross-posting. :PWe won't, if over there you just post basically a
link to this one.
sigh Guess what, he did it the flame-deserving way. It's crossposted at:
http://forum.java.sun.com/thread.jspa?threadID=602805
<flame level="mild">Never ceases to amaze me how people don't think that posting a duplicate rather than a simple link isn't wasteful, as people could end up answering in both of them, not seeing each other's answers</flame>

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