Server-Class Machine Detection
Improved Support for Environment Variables
JavaBeans Component Architecture
Java API for XML Processing (JAXP)
Remote Method Invocation (RMI)
Java Database Connectivity (JDBC)
Java Naming and Directory Interface (JNDI)
Java Virtual Machine Tool Interface (JVMTI)
Java Platform Debugger Architecture (JPDA)
For more information, refer to http://java.sun.com/j2se/1.5.0/system-configurations.html.
With J2SE 5, AMD Opteron processors are supported by the server VM on Suse Linux and on Windows 2003.