diff -r 4183cbe41d24 -r 06f0e720b913 src/Pure/System/isabelle_tool.scala
--- a/src/Pure/System/isabelle_tool.scala	Wed Oct 25 17:06:21 2023 +0200
+++ b/src/Pure/System/isabelle_tool.scala	Thu Oct 26 11:23:53 2023 +0200
@@ -171,6 +171,7 @@
   Component_Foiltex.isabelle_tool,
   Component_Fonts.isabelle_tool,
   Component_Hugo.isabelle_tool,
+  Component_Javamail.isabelle_tool,
   Component_JDK.isabelle_tool,
   Component_JEdit.isabelle_tool,
   Component_Jsoup.isabelle_tool,