Java preferences

jriemer · Post by **jriemer** » Tue Jul 12, 2011 2:04 pm

Attempting to use the Java preferences API from a servlet, receiving:

java.util.prefs.FileSystemPreferences$2 run
WARNING: Couldn't create user preferences directory. User preferences are unusable.

I've created the following under both JAVA_HOME and CATALINA_HOME:

.systemPrefs/.system.lock
.systemPrefs/.systemRootModFile

and restarted Tomcat, but to no avail. Any enlightenment appreciated.

Post by **dovetail** » Wed Jul 13, 2011 9:57 am

Try using the same API from a standalone Java program on z/OS. Does it work there without running under Tomcat?

jriemer · Post by **jriemer** » Wed Jul 13, 2011 4:08 pm

Turns out that the home directory / user.home spec was invalid. Thanks.