Why Don’t You Use Java for Programming the Client-Side Web Apps on Web Browser?

I would like to know, what are the obstacles for you as Java developers not using Java as programming language for writing Web browser apps. Web browser apps are client-side and not server-side Web apps. For running Web browser apps you mostly don’t need a Web server, you just need HTML, CSS and JavaScript files.

I’m doing Web browser programming using Java with GWT / J2CL and surely it is not perfect because the Web browser APIs feel very JavaScript but I have following advantages:

1. We use Java as the language
2. We have the best ecosystem like libraries, frameworks, build system and IDEs.
3. We know best design patterns to make our apps maintainable like Dependency Injection, Mock Testing and many other just take a look at: http://bit.ly/DesignPatternsJava
4. … and if you use Java on the server-side with Spring Framework or JavaEE you have one language through the whole stack. So, you could reuse Validation APIs, Business Rules, Business Model, etc. from server to client.

In the mean time I have written following articles in this domain:

• Web Browser Programming in Java
• Learn Once Use Everywhere: JavaScript in Java for Web Browser