Getting [SQLITE_BUSY] database file is locked with select statements

Question

If I run multiple threads against my web app I get:

java.sql.SQLException: [SQLITE_BUSY]  The database file is locked (database is locked)
    at org.sqlite.         


        

Answer 1

For me the problem was that I was opening too much Sessions So I made the session field in my DAO class static

Answer 2

Thanks from bowman han, I added a piece of code to his solution and it worked for me.

private static Connection c = null;
public static Connection connect() throws Exception {

    if (c == null) {
        c = (Connection) DriverManager.getConnection(url);
    } else {
        c.close();
        c = (Connection) DriverManager.getConnection(url);
    }
    return c;
}