-Xmxoption for dedicated Java heap memory:
-XX:MaxPermSizefor "permgen" space (Java 1.7):
WEB-INF/exist-datadirectory, wherever Orbeon Forms
.warfile is uncompressed. So, especially if you're on UNIX, make sure that this directory is writable by the process running your app server.
System.getProperty("user.home")to identify the user's home directory._ This corresponds to the user running the servlet container and not necessarily to the user of the developer or system administrator._