According to this post by Jonathan Schwartz, Sun will be changing its stock trading symbol next week from “SUNW” to “JAVA”.

“JAVA is a technology whose value is near infinite to the internet, and a brand that’s inseparably a part of Sun (and our profitability). And so next week, we’re going to embrace that reality by changing our trading symbol, from SUNW to JAVA. This is a big change for us, capitalizing on the extraordinary affinity our teams have invested to build, introducing Sun to new investors, developers and consumers. Most know Java, few know Sun – we can bring the two one step closer.

To be very clear, this isn’t about changing the company name or focus – we are Sun, we are a systems company, and we will always be a derivative of the students that created us, Stanford University Network is here to stay. But we are no longer simply a workstation company, nor a company whose products can be limited by one category – and Java does a better job of capturing exactly that sentiment than any other four letter symbol.”