JBoss Tools JSP Editor is slowed by JSPTextEditor.handleCursorPositionChanged ----------------------------------------------------------------------------- Key: JBIDE-15257 URL: https://issues.jboss.org/browse/JBIDE-15257 Project: Tools (JBoss Tools) Issue Type: Bug Components: jsp/jsf/xml/html source editing Reporter: Viacheslav Kabanovich Assignee: Viacheslav Kabanovich Fix For: 4.2.0.Alpha1 Method JSPTextEditor.handleCursorPositionChanged resets text selection on each change in cursor position, except when selection has non-zero length. That is done to inform vpeController know of that change. However, setting selection is quite a time-consuming operation, it makes navigating with cursor about 20% slower than in HTML editor. Previously to changes done for JBIDE-7059, handleCursorPositionChanged directly invoked method vpeController.selectionChanged. Commits to JBIDE-7059 do not explain why that was replaced by resetting selection. I suggest restoring the previous method implementation.