stored procedure by using EXECUTE at the sender JDBC

We have Scenario from JDBC to RFC (ASYNCH).We are using Oracle DB,at the database side we have a stored Procedure and inside the Procedure we are accessing multiple table.

My query is how can we excecute update sql statement a stored procedure by using EXECUTE at the sender JDBC?

EXECUTE SP_STUDENT_UPDATE

ERROR: 'java.sql.SQLException: ORA-00900: invalid SQL statement '. For details, contact your database server vendor.