avoid conflict with Isabelle/jEdit completion of '>', e.g. "-->", "==>";
--- a/src/Tools/jEdit/src/jEdit.props Sat Feb 17 18:42:26 2018 +0100
+++ b/src/Tools/jEdit/src/jEdit.props Sat Feb 17 19:37:18 2018 +0100
@@ -311,3 +311,4 @@
view.thickCaret=true
view.title=Isabelle/jEdit -\u0020
view.width=1072
+xml-insert-closing-tag.shortcut=