Methodcache is an easy to use but powerful Spring AOP cache on method level in Spring apps. To enable the caching for a service-method you only have to add the annotation @MethodCache and do some configurations. See example and cookbook!
JCBE is an acceleration framework for Java programs running on Cell Broadband Engine processors. It is based on native methods executed on either PPE or SPE depending on method annotation used. C code is directly embeded in the Java source.