Java Development Tools

Hi All,

I am having problem when trying to call a SQL function in a package with return type BOOLEAN
The SQL function signature is as follows
####

CREATE OR REPLACE PACKAGE RMSOWNER.ORDER_ATTRIB_SQL ****

FUNCTION GET_PO_TYPE_DESC(O_error_message IN OUT VARCHAR2,
I_PO_TYPE IN VARCHAR2,
O_PO_TYPE_DESC IN OUT VARCHAR2)
RETURN BOOLEAN;

####


Following is my java code

####
+CallableStatement cs3 = conn.prepareCall("{?=call ORDER_ATTRIB_SQL.GET_PO_TYPE_DESC(?,?,?)}");+
+cs3.registerOutParameter(1, java.sql.Types.BOOLEAN);+
+cs3.registerOutParameter(2, java.sql.Types.VARCHAR);+
+cs3.registerOutParameter(4, java.sql.Types.VARCHAR);+
+cs3.setString(2, "");+
+cs3.setString(3, "ST");+
+cs3.setString(4, "");+
+ResultSet rs3 = cs3.executeQuery();+
####

I get the following exception, i tried changing the sql type(registerOutParameter) from boolean to bit but i still getting this exception.
But when i call any other functions with return type other than boolean they work perfectly fine.

Please can anyone help me fix this issue, i am not sure if its anything to do with vendor JDBC classes?

#####
+java.sql.SQLException: ORA-06550: line 1, column 13:+
+PLS-00382: expression is of wrong type+
+ORA-06550: line 1, column 7:+
+PL/SQL: Statement ignored+

+ at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)+
+ at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)+
+ at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288)+
+ at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:743)+
+ at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:215)+
+ at oracle.jdbc.driver.T4CCallableStatement.executeForRows(T4CCallableStatement.java:954)+
+ at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1168)+
+ at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3316)+
+ at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3422)+
+ at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:4394)+

#####