Eclipse / WTP has some Connector project and RAR file import/export support.
A Resource Adapter Archive (.RAR) file is a Java archive file used to package a resource adapter for the Java 2 Connector (J2C) Architecture.
A RAR file can contain Enterprise information system (EIS, i.e. CICS) supplied resource adapter implementation code in the form of JAR files or runnable components, such as DLLs or Utility classes or static documents, such as HTML files, images, and sound files. The standard file extension of a RAR file is .rar.
Resource Adaptor:
A resource adapter is a software driver that a Java application uses to connect to an EIS.
A resource adapter plugs into an application server and provides connectivity between the EIS, the application server, and the enterprise application.
An application server vendor extends its system once to support the J2EE Connector Architecture (JCA) and is then assured of seamless connectivity to multiple EISs. Likewise, an EIS vendor provides one standard resource adapter with the capability to plug into any application server that supports JCA. JCA provides connection pooling, transaction, and security support.