Someone in another thread of mine said that they use Weblogic for JMS. Is this because there is no support for messaging in Spring ? Or is it that maybe Weblogic/Websphere have advanced messaging features yet to be developed in the Spring framework ?
Spring itself doesn't come with a JMS implementation. It provides support classes for hooking into JMS resources but it doesn't provide the JMS implementation managing those JMS resources. For that you need to rely on 3rd party products such as BEA WebLogic, IBM WebSphere MQ, Sonic MQ, Fiorino MQ, ActiveMQ, OpenJMS, etc.