How to copy file sqlite database that is inside a jar?

I have embedded a sqlite database into my java project.

SQLiteConfig config = new SQLiteConfig();
config.enableFullSync(true);
config.setReadOnly(false);
SQLiteDataSource ds = new SQLiteDataSource(config);
ds.setUrl("jdbc:sqlite::resource:"+getClass().getResource("/database/4LifeManager_db").toString());
conexion = ds.getConnection();

Now I want copy that file of the database and to put it in a folder of a computer. I have tried this code:

InputStream in=null;    
OutputStream out=null;        
try 
{
    in = getClass().getResourceAsStream("/database/4LifeManager_db");
    out = new FileOutputStream(ruta+"/4LifeManager_db");
    byte[] buf = new byte[1024];
    int len;
    while((len = in.read(buf))>0)
    {out.write(buf,0,len);}
    in.close();
    out.close();
} 
catch (IOException | HeadlessException e) 
        {JOptionPane.showMessageDialog(escritorio,"No se pudo extraer archivo\n"+e.toString());}

But when I execute that code, only copy the file without modifications, that is, without the data I deleted, entered or modified. If someone helps me, I will be grateful