Java Platform Standard Edition lets you develop and deploy Java applications on desktops and servers, as well as today’s demanding Embedded and Real-Time environments. Using Java SE 6  for Embedded enables you to develop highly functional, reliable, portable and secure applications for today’s more powerful embedded systems.
The advantages of running applications on Java SE 6 include: Applications run faster on the desktop and servers; New ‘Dynamic Attach’ diagnostics simplify troubleshooting; Expanded Solaris DTrace support provides additional value on Solaris; Improved ‘native’ look and feel across Solaris, Linux, and Windows.
Java 6 SE has got Native platform Security (GSS/Kerberos) integration, Java Authentication and Authorization Service (JAAS) login module that employs LDAP authentication and New Smart Card I/O API security features that improve the security capabilities of java to a greater extent.
This is the first Java Platform to offer full functional support in Vista.