Java, Let me use the damn FileDescriptor!
Last Update 2024-01-30, see below
Recently I hacked on some utility in Java which should be able to bind low ports like 80 or 443 on demand without running as root. When I needed to bind these port I wanted to execute an external process as root which opens the ports for the main process and then sends the ports via Unix domain socket.
Intro to MVStore, an embedded key value store
MVStore is the backend storage for the popular embedded H2 relational database. If you don’t need a relational database, but a lower level storage MVStore is maybe an option. The MVStore has a good nice range of features. The documentation isn’t as detailed, but the intro documentation gives a decent overview. Anyway, this post is another small intro.
Missing SNI with Java's HTTPS client
Recently I got strange exceptions connection to HTTPS while developing a Java app. The app connected to my local machine using it’s host name with the Apache HTTP client:
CloseableHttpClient client = HttpClientBuilder.create().build();
String url = "https://gamlor-turboro/files/info.txt";
try (CloseableHttpResponse result = client.execute(new HttpGet(url))){
String body = EntityUtils.toString(result.getEntity());
System.out.println(body);
}Good Bye Turbo.net
I left my work at https://turbo.net this month, taking a break before looking for a new opportunity. Some reflection of over 6 years working there.
Turbo-lent Years: Heavy Evolution of the Product
When I joined Turbo.net it was known as Spoon.net. It could launch sandboxed Windows apps and provided a Dropbox liked sync service. During my time we introduced Turbo.net application containers. Think of Docker containers for Windows desktop apps.
After the Desktop containers system was running, we started to implement cloud remote applications. That allows you to launch Windows apps on your iPad, Mac, Windows and any HTML5 capable browser. Turbo.net provisions and manages Windows machines for you to run the apps on and uses the app containers to move apps onto the blank Windows machines. Your organization doesn’t need to manage Windows machines. You launch the app and use it.
When I’m using Linux I use IBus to write Korean. A few days ago when I updated my Manjaro installation writing Korean stopped working. After booting everything looked fine. The IBus tray icon was there, switching languages with Win+Space seemed to work.
Tray icon looks OK: