The Java Update, Applets/Web Start and GlassFish

By now, most of us know about the Java SE security vulnerability that affects primarily Java Applets. You might be relieved to know that the latest Java update, Java 7 Update 21, looks to fix that vulnerability. Java EE expert group member and key community figure Markus Eisele did an awesome job explaining the details and providing further context.

Although the security vulnerabilities definitely do not affect server-side applications (the ones running on GlassFish), GlassFish has had support for launching Java EE application clients using Java Web Start. If you don't know what Web Start is, you are hardly alone - it's even less prevalent than Applets these days. The java.com site does a pretty good job of explaining Web Start. The Java update affects Web Start too, so if you are using it, you'll need to be aware of the changes. Oracle's Tim Quinn explains what you need to watch out for.

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