I have a create or replace function(procedure,etc) script. When i parse the script, it throws exception.
When I remove "or" statement, it parses successfully.

SQL like this;

CREATE OR REPLACE Function FindCourse
   ( name_in IN varchar2 )
   RETURN number
IS
   cnumber number;

   cursor c1 is
   SELECT course_number
     FROM courses_tbl
     WHERE course_name = name_in;

BEGIN

   open c1;
   fetch c1 into cnumber;

   if c1%notfound then
      cnumber := 9999;
   end if;

   close c1;

RETURN cnumber;

EXCEPTION
WHEN OTHERS THEN
   raise_application_error(-20001,'An error was encountered - '||SQLCODE||' -ERROR- '||SQLERRM);
END;

Exception;

net.sf.jsqlparser.JSQLParserException: null
	at net.sf.jsqlparser.parser.CCJSqlParserUtil.parseStatements(CCJSqlParserUtil.java:151) ~[jsqlparser-3.2.jar:?]
        ...

Was expecting one of:

    ";"
    "CALL"
    "COMMENT"
    "COMMIT"
    "DECLARE"
    "DELETE"
    "DESCRIBE"
    "DROP"
    "EXEC"
    "EXECUTE"
    "EXPLAIN"
    "GRANT"
    "INSERT"
    "MERGE"
    "SET"
    "SHOW"
    "TRUNCATE"
    "UPDATE"
    "UPSERT"
    "USE"
    "VALUES"
    "WITH"

	at net.sf.jsqlparser.parser.CCJSqlParser.generateParseException(CCJSqlParser.java:25031) ~[jsqlparser-3.2.jar:?]
	at net.sf.jsqlparser.parser.CCJSqlParser.jj_consume_token(CCJSqlParser.java:24875) ~[jsqlparser-3.2.jar:?]
	at net.sf.jsqlparser.parser.CCJSqlParser.SingleStatement(CCJSqlParser.java:244) ~[jsqlparser-3.2.jar:?]
	at net.sf.jsqlparser.parser.CCJSqlParser.Statements(CCJSqlParser.java:498) ~[jsqlparser-3.2.jar:?]
	at net.sf.jsqlparser.parser.CCJSqlParserUtil.parseStatements(CCJSqlParserUtil.java:149) ~[jsqlparser-3.2.jar:?]
	... 106 more

My java version 11
JSqlParser version 3.2