When executed with the -viewer argument, e.g., System/Library/Frameworks/amework/Versions/ 1.5.0/Commands/javaws For example, the full path to the 1.5.0 version is: On OSX, a link is installed as “ /usr/bin/javaws“, and a specific version can be accessed from the appropriate framework directory. This is located in the “ bin” directory in Linux and Windows distributions of the JDK or JRE. The most straightforward way to do this is to simply use the “ javaws” command included in the JDK. On occasion, though, it is useful to launch WebStart “manually” from the command line, without the overhead of getting a web browser involved. Depending on configuration, desktop shortcuts may be installed to speed up subsequent launches, and cached applications can also be launched from within the WebStart control panel.
WebStart is typically registered as the helper application for content with mime type application/x-java-jnlp-file, so the browser downloads the jnlp content and hands it off to WebStart. One generally starts a Java WebStart application by clicking on a link in a web browser.
Launching Java WebStart from the Command Line