On Solaris and Linux, Java Enterprise System is certified with and includes Java SE 5.0 Update 9 (1.5.0_09). On HP-UX, Java Enterprise System is certified with and includes Java SE 5.0 Update 3 (1.5.0_03). Additionally, the following items are compatible with Java SE 1.4.2:
Shared components
End user client applications
Public Java APIs
Specific components might support additional versions of Java SE or might have compatibility issues regarding certain versions of Java SE. For information, see the release notes for the component.