Currently, if using multithreading in ooRexx and wishing to interact with Java from all threads, one needs to do:
Allow for a mechanism that is able to automatically attach ooRexx threads to Java (using some sort of a "primodal TID" that carries the established connection to/from Java, maybe storing the TID in .local und the name "bsf.primodalTID").
Committed with http://sourceforge.net/p/bsf4oorexx/code/180.