Java 9 introduced "/" into line, like "java.base/sun.security.ssl".
--- a/log4-hi-mode.el Sun Feb 23 14:45:23 2020 +0200
+++ b/log4-hi-mode.el Mon Feb 24 13:32:00 2020 +0200
@@ -41,7 +41,7 @@
("INFO\\|DEBUG\\|TRACE" . 'log4-hi-info-face) ))
(defvar log4-hi-func-keywords
- '(("at [[:alnum:].]+\\.\\([[:alnum:]$]+\\.[[:alnum:]$<>]+\\)([[:alnum:]]+\\.java:[0-9]+)" 1 'log4-hi-func-face) ))
+ '(("at [[:alnum:]./]+\\.\\([[:alnum:]$]+\\.[[:alnum:]$<>]+\\)([[:alnum:]]+\\.java:[0-9]+)" 1 'log4-hi-func-face) ))
(defvar log4-hi-time-keywords
'(("\\(:?[0-9]\\{2\\}?[0-9]\\{2\\}.[0-9]\\{2\\}.[0-9]\\{2\\}.\\|\\<\\)[0-9]?[0-9]:[0-9][0-9]:[0-9][0-9]\\>\\(:?\\.[0-9]\\{3\\}\\)?" . 'log4-hi-time-face)))