Java2Script(J2S) provides an Eclipse Java to JavaScript compiler plugin and a JavaScript version of Eclipse SWT besides common utilities like java.lang.* and java.util.*. SWT-based RCP can be converted into RIA by using J2S.
OpenXL provides a flexible, platform-independent SOA/Web Service middleware and workflow programming language (SLL). OpenXL supports the creation, provisioning and execution of Web Services as well as the integration of code written in BPEL, Java, etc.