I could not find a compiled version of Opennms for the arm processor so attempted to compile it from source. Was unable to compile jicmp or jicmp6 as they required a version 5 JDK, then was unable to compile Opennms as the ./configure step was unable to allocate enough heap space to proceed. The Pi has a Terabyte of Hard Drive space, but is of course very limited in memory.
I'm being force to run Nagios at this time. Would prefer to install Opennms on this small server.