This is a bug with the Area class in the Java Geometry API. Type shapes merges shapes together and uses these classes to do so.
The bug, as decribed here: http://bugs.sun.com/bugdatabase/view_bu ... id=4667078 results in OutofMemory Errors.
It happens often enough to be annoying and will make Alchemy freeze or become unresponsive. The alternative may be to switch to using this library: http://www.vividsolutions.com/jts/jtshome.htm
