Citrix has dipped its toe in the platform-as-a-service market with an undisclosed investment in Java-based PaaS provider, CumuLogic. The startup is run by ex-Sun veterans who played a key role in the adoption of Java. James Gosling, the father of Java, is an advisor to CumuLogic. The company’s PaaS software lets enterprises deploy Java apps on all the major clouds including CloudStack, Eucalyptus, OpenStack, VMware vCloud, Amazon Web Services and HP Cloud Services. Currently the majority of apps being developed on PaaS platforms are mobile and web apps, but the expectation is that the next big enterprise software application will be developed on a PaaS. Citrix wants to make sure it has a shot at hosting the big one, whatever that might. The investment in CumuLogic also gives Citrix a way to compete with VMware’s CloudFoundry PaaS.