Common Vulnerabilities and Exposures assigned an identifier CVE-2009-2720 to the following vulnerability: Unspecified vulnerability in the javax.swing.plaf.synth.SynthContext.isSubregion method in the Swing implementation in Sun Java SE 6 before Update 15 allows context-dependent attackers to cause a denial of service (NullPointerException in the Jemmy library) via unknown vectors. http://java.sun.com/javase/6/webnotes/6u15.html