Excelsior JET 5.0 Beta 2: Java Runtime Slim-Down in action
Excelsior JET 5.0 will introduce Java Runtime Slim-Down, a new deployment technology that reduces the download size of Java SE applications. This Beta 2 release enables you to test drive Java Runtime Slim-Down with your Java apps.
OUR RESULTS
Here are the download size figures we obtained for sample installation packages powered by Excelsior Installer:
| Application | GUI Toolkit | Download size |
|---|---|---|
| SWTDemo | SWT | 4.8 MB |
| JaLingo 0.6.0 | Swing | 8.5 MB |
| jEdit 4.2 | Swing | 8.7 MB |
| RSSOwl 2.0 | SWT+AWT/Java2D | 8.6 MB |
Note that the Java applications:
- do not need the JRE installed on enduser systems
- use Java SE 5.0 not JDK 1.1.x
HOW IT WORKS
Using Java Runtime Slim-Down, you can select the components of Java SE API which are not used by your application and remove them from the installation package. Note that this deployment model does not compromise Java compatibility. For more details, see this blog post
TRY IT NOW
To try Java Runtime Slim-Down, do the following:
- Download and install Excelsior JET 5.0 Evaluation Package.
- Make sure that the Global Optimizer is enabled on the page Classpath of the JET Control Panel and rebuild your project.
- On the page Runtime of JetPackII, click Configure in the Detached Components pane and select the Java SE components which you want to exclude from the installation package.

April 28th, 2007 at 9:50 pm
I am choosing a language to describe our application.
In using Java, performance is the most difficult problem.
I’ like to evaluate excelsior to solve the problem.
April 29th, 2007 at 12:11 pm
You may download a fully functional Excelsior JET evaluation package here.