To capture/format the RAW DETERMINISTIC output variable

Question

Hello Gurus,
I am new to this forum but just have few questions:
I have a procedure 'proc_encrypt_data'. This procedure accepts a varchar2 variable and returns a RAW deterministic variable as output. I have tried to typecast it or change the value to varchar2 but I am not able to capture the same in JAVA in a String variable?
The code method snippet is below:
public static void callfunction()
try
CallableStatement cstmt;
cstmt = con.prepareCall("{call proc_encrypt_data(?,?)}");
cstmt.setString(1,"abcd");
cstmt.setString(2,"efgh");
cstmt.executeQuery();
String str=cstmt.getString(2);
System.out.println(str);
} catch (SQLException ex) {
System.err.println("SQLException:" +ex.getMessage());
The procedure is as shown below:
PROCEDURE proc_encrypt_data( p_data IN VARCHAR2, p_encrypted_data OUT VARCHAR2 ) IS
l_data RAW(2048) := utl_raw.cast_to_raw(p_data);
l_encrypted RAW(2048);
BEGIN
l_encrypted := dbms_crypto.encrypt ( -- Algorithm
src => l_data,
typ => DBMS_CRYPTO.DES_CBC_PKCS5,
key => V_KEY );
p_encrypted_data := utl_raw.cast_to_varchar2(l_encrypted);
END proc_encrypt_data;
Am I calling the function correctly?
how can I capture the returrn variable?
or do I need to do something at SQL end to change the procedure and return some ASCII converted value?
I am using the standard way to call a procedure and capture a return variable but it's not helping me. Somebody please guide. It's urgent POC need.
Thanks!

Answer 1

Also, the error that shows up is:
SQLException:ORA-06550: line 1, column 7:
PLS-00201: identifier 'PROC_ENCRYPT_DATA' must be declared
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
Got Connection
Driver Name : Oracle JDBC driver
Driver Version : 9.2.0.1.0
Process exited with exit code 0.