Scene Builder and another Java application (FreeMind) interfere with each other's launching on Mac OS X

After installing FreeMind 0.9.0 for Mac OS X (http://freemind.sourceforge.net), I cannot launch Scene Builder if FreeMind is already started. Clinking on the Scene Builder icon in the Dock or the LaunchPad merely makes the FreeMind window as the active window. The reverse is also true: if Scene Builder is already started, clicking on the FreeMind icon in the Dock or the LaunchPad makes the Scene Builder window the active window. Mac OS X seems to be treating the two application as one and the same.