ORA-04043 Error when oracle type is declared in a package [duplicate] - oracle

Question

I have a Java app accessing an oracle stored procedure. The arguments to the stored procedure include an array type. I do it like the following...
con = this._getConnection();
Connection narrowdConn = (Connection)WSJdbcUtil.getNativeConnection( (WSJdbcConnection)con );
callable = con.prepareCall("{call MY_PKG.MY_PROCEDURE(?, ?)}");
ArrayDescriptor arrayDescriptor = ArrayDescriptor.createDescriptor("VARCHAR2_ARR", narrowdConn);
ARRAY arrayArg1 = new ARRAY(arrayDescriptor, con, docNames);
ARRAY arrayArg2 = new ARRAY(arrayDescriptor, con, docTypes);
callable.setArray(1, arrayArg1);
callable.setArray(2, arrayArg2);
callable.execute();
Now, I am getting this Exception...
java.sql.SQLException: invalid name pattern: MY_PKG.VARCHAR2_ARR
VARCHAR2_ARR is a public TYPE, defined inside an Oracle Package like the following:
TYPE VARCHAR2_ARR IS TABLE OF VARCHAR2(50);
And used as such in my stored proc...
PROCEDURE MY_PROCEDURE
(V_ARR_ARG1 IN VARCHAR2_ARR,
V_ARR_ARG2 IN VARCHAR2_ARR)

Answer 1

the type VARCHAR2_ARR is a PLSQL type, you won't be able to interface it directly from java. I suggest you look into this thread on AskTom regarding a similar question.
Here are a couple suggestions:
create a SQL TYPE that you can bind from java
insert into a temporary table from java and read from it in plsql
In both cases you will have to either modify the PLSQL procedure or add a new translation procedure.

Answer 2

We need to set accessToUnderlyingConnectionAllowed falg true while creating a datasource

Answer 3

I did stuck at this problem. Hope this illustration might help you:
Steps to create the procedure in oracle.
Create type of the desired object as:
CREATE OR REPLACE TYPE STUDENT_TYPE IS OBJECT
( ID NUMBER,
NAME VARCHAR2(50));
Create another object of array as:
CREATE OR REPLACE TYPE STUDENT_ARRAY IS TABLE OF STUDENT_TYPE;
Create procedure to accepting array of object and do the desired operation, I am here just inserting the entries in table as:
CREATE OR REPLACE PROCEDURE SP_INSERT_STUDENT_RECORD_IN_BULK(
IN_STUDENT_RECORDS STUDENT_ARRAY) IS
BEGIN
FOR i IN IN_STUDENT_RECORDS.first.. IN_STUDENT_RECORDS.last
LOOP
BEGIN
INSERT INTO STUDENT(ID,NAME) VALUES
(IN_STUDENT_RECORDS(i).ID, IN_STUDENT_RECORDS(i).NAME)
END;
END LOOP:
END SP_INSERT_STUDENT_RECORD_IN_BULK;
Code snippet to call Procedure through Java
import org.springframework.jdbc.core.*;
import oracle.jdbc.OracleConnection;
....
List<Student> students = getStudentList();
try(Connection hikariCon = dataSource.getConnection()){
if(hikariCon.isWrapperFor(OracleConnection.class)){
OracleConnection con = hikariCon.unwrap(OracleConnection.class);
Object[] students = students.stream().map(student -> {
return con.createStruct(STUDENT_TYPE, new Object[]{
student.getId(),
student.getName()
});
}).collect(Collectors.list()).flatMap(List::stream).toArray();
SimpleJdbcCall jdbcCall = new SimpleJdbcCall(dataSource)
.withProcedureName("SP_INSERT_STUDENT_RECORD_IN_BULK")
.declareParameters(
new SqlParameter("IN_STUDENT_RECORDS", Types.ARRAY));
jdbcCall.execute(con.createOracleArray(STUDENT_ARRAY,students))
}
} catch(Exception e){
log.error("Error due to- {}",e,getMessage());
}