When importing a workflow xml maintained in IntelliJ I've run into the following exception a number of times:

[INFO] [talledLocalContainer] 2010-11-21 22:33:58,862 http-2990-1 INFO admin 1353x9105x1 1epjgla 127.0.0.1 /secure/CommentAssignIssue.jspa [atlassian.jira.workflow.DefaultOSWorkflowConfigurator] No TypeResolvers found registered for class 'com.bofa.gmrt.code.jiraworkflow.function.AssignIssueFromCustomField
[INFO] [talledLocalContainer]                             '.

This is caused by IntelliJ adding line breaks to elements when using CTRL+ALT+L to reformat the XML that is exported from Jira. A simple .trim() on the classname as it is parsed from the xml would solve this issue.

For what it's worth I've attempted to tweak the IntelliJ XML syntaxes to stop this silliness and had no luck.