more accurate _listFiles -- avoid infinite infinite expansion of e.g. "$ISABELLE_HOME";
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Tools/jEdit/patches/favorites Thu Jan 31 22:02:50 2019 +0100
@@ -0,0 +1,13 @@
+diff -ru 5.5.0/jEdit/org/gjt/sp/jedit/io/FavoritesVFS.java 5.5.0/jEdit-patched/org/gjt/sp/jedit/io/FavoritesVFS.java
+--- 5.5.0/jEdit/org/gjt/sp/jedit/io/FavoritesVFS.java 2018-04-09 01:57:13.000000000 +0200
++++ 5.5.0/jEdit-patched/org/gjt/sp/jedit/io/FavoritesVFS.java 2019-01-31 21:48:47.418367799 +0100
+@@ -70,7 +70,8 @@
+ public VFSFile[] _listFiles(Object session, String url,
+ Component comp)
+ {
+- return getFavorites();
++ if (url.equals(PROTOCOL + ':')) return getFavorites();
++ else return null;
+ } //}}}
+
+ //{{{ _getFile() method