The long-running battle between Microsoft and Sun Microsystems over the Java programming language escalated Thursday, as Microsoft issued a terse response to a Sun ad campaign that ran last week.

Sun Microsystems on Wednesday tweaked its Java licensing, emphasizing that the company wants to make Java as open source as possible while maintaining platform compatibility. The vendor also provided ...

Sun Microsystems President and COO Jonathan Schwartz discussed partner opportunities around open-source technology, Web services, service-oriented architectures (SOAs) and Java Business Integration ...