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Now uml nbms do not change default memory settings "-J-Xms32m -J-Xmx128m" in "netbeans.conf". Defaults are not enough for uml module. Previously settings were set to "-J-Xms256m -J-Xmx512m" by enterprise pack installer. With default settings performance problems are highly visible and 'OutOfMemory' appears after sime time of active IDE usage.
see also issue 85996
uml clusters should be added to the clusters config file as well.
ignore the last comment regarding uml clusters since the directory structure has been changed.
-J-Xmx512m is only needed when working with large uml modeling project or reverse engineering a large java project. Otherwise, the default setting should work fine.
workaround for this bug: manually replacing "-J-Xmx128m" with "-J-Xmx512m" for netbeans_default_options in netbeans.conf file under NB-install-dir/etc subdirectory.
changed to p3 to adhere to Netbeans priority guidelines.
This one should be closed as WONTFIX because a different mechanism for memory settings tuning is in place for 6.0. The max heap size value is now computed dynamically by launcher to fit the user's RAM size (heap size from 96m to 512m depending on how much RAM the user has). I don't recommend to let any plugin installed via UC to toggle netbeans.conf.
Resolved as wontfix per anebuzelsky.