Some actions use 100% processor time for an undetermined time
before eclipse crashing.
Configuration detail :
eclipse-wtp-2.0 (Version: 3.3.0, Build id: I20070625-1500)
RBE plugin : Version 0.7.7
The only time I have seen something like this can happen, is on large files when you have validation features turned on. You may want to try going in Windows/Preferences/ResourceBundle Editor/Performance and disable options there to see if it helps.