The 1.6.0 version of OpenJUMP for Mac is provided as a free download on our website. Some of the application aliases include "OpenJUMP rev.2930 CORE". The program is included in Developer Tools. The actual developer of this free Mac application is Michael Michaud. The following version: 1.6 is the most frequently downloaded one by the program users.
From the developer:
OpenJUMP is an open source Geographic Information System (GIS) written in the Java programming language.
You may want to check out more software for Mac, such as PLCEdit, AS3 Class Diagram Viewer or Epsilon, which might be related to OpenJUMP.