Using arrays as type for bind variable

Hi all,
I have this stored procedures that takes an array of strings as an argument:
CREATE OR REPLACE PACKAGE mypackage AS
TYPE StringArray IS VARRAY(100) OF VARCHAR2(16);
PROCEDURE doSomething(v_strings IN StringArray);
END;
My java code looks something like:
String[] strings = ...;
CallableStatement cs = connection.prepareCall("CALL mypackage.doSomething(?)");
cs.setObject(1, strings, java.sql.Types.ARRAY);
calling the setObject method throws a SQLException: invalid column type.
I have tried to change the call to:
cs.setArray(1, new SqlStringArray(strings))
where SqlStringArray is a wrapper around String[] that implements the java.sql.Array interface. This however throws a ClassCastException in oracle.jdbc.driver.OraclePreparedStatement. The latter is assuming it is receiving a class that implements yet another interface I guess.
I also tried:
cs.setObject(1, strings, java.sql.Types.VARCHAR);
but that also throws a SqlException: invalid conversion requested
Does anybody know how to bind String[] into a PreparedStatement?
Any help is appreciated.
Rudi.

Made some progress. I am getting the OracleConnection from the WrappedConnection. This is a temporary solution for me so I would appreciate a final solution from anybody.
I am now constructing a oracle.sql.ARRAY with an appropriate oracle.sql.ArrayDescriptor. I have found out that the type must be defined on a global level rather than in the scope of the package. Would be good if an Oracle expert could confirm that but I am happy to live with that.
The IN parameter is correctly bound using the ARRAY instance but I am getting the following error when actually executing the statement:
ORA-06512: Reference to uninitialized collection: at "BLUETEST_MYPACKAGE", line 57
Now I have found quite some problem descriptions with that ORA error but all are dealing with OUT parameters that were not correctly initialized, i.e. the array constructor had not been called. In my case however, the array is initialized at by the java code and then bount to the sql statement. You would expect that the jdbc driver takes care of correctly initializing the PL/SQL collection wouldn't you.
Does anybody know if I need to do anything extra?
Many thanks,
Rudi.

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>
One observation has been the clause
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>
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I'm with bravid and Nikolay on this one. First find out which side, select/insert, the problem is on.
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Using arrays as type for bind variable

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