SqlJet Transaction Misuse Error

I am trying to access my database while using SqlJet transactions but I am getting this error all the time

org.tmatesoft.sqljet.core.SqlJetException: MISUSE: error code is MISUSE

      

        
        
        
      

    

Here is my code:

SqlJetDb db = null;

            try {
                File dbFile = new File(Configuration.DATABASE_NAME);

                db = SqlJetDb.open(dbFile, true);
                db.getOptions().setAutovacuum(true);
                db.beginTransaction(SqlJetTransactionMode.READ_ONLY);
                ISqlJetTable table = db.getTable("customers");
                ISqlJetCursor cursor = table.order(table.getPrimaryKeyIndexName());
                if (!cursor.eof()) {
                    do {
                        getInitData(cursor);
                    } while (cursor.next());
                }
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                try {
                    db.commit();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }

      

        
        
        
      

    

Does anyone know what happened to the problem? Because of this list, using the executable library was wrong, but I checked it out and there was nothing wrong with me. http://grepcode.com/file/repo1.maven.org/maven2/org.tmatesoft.sqljet/sqljet/1.0.2/org/tmatesoft/sqljet/core/SqlJetErrorCode.java#SqlJetErrorCode

Thank!