Spring 3.0 maintains compatibility with J2EE 1.4 and higher but drops support for application servers that require Java 1.4 to run.
The following application servers are compatible with Spring 3.0:
WebLogic Server 9.0, 9.2 and 10 and Oracle WebLogic Server 11g (10.3.2)
WebSphere 6.1 (6.1.0.9 or later recommended) and 7
Tomcat 5.0, 5.5 and 6.0
SpringSource tc Server 6.0.19A and later
SpringSource dm Server 2.0
JBoss 4.2, 5.0 and 5.1
Glassfish v1, v2 and v3
Resin 3.0 and 3.1
Jetty 5.1 and 6.1