--- a/jdk/src/java.base/share/classes/sun/launcher/resources/launcher.properties	Tue Jun 28 00:39:26 2016 +0200
+++ b/jdk/src/java.base/share/classes/sun/launcher/resources/launcher.properties	Mon Jun 27 20:22:04 2016 -0700
@@ -60,6 +60,9 @@
 \                  limit the universe of observable modules\n\
 \    -listmods[:<modulename>[,<modulename>...]]\n\
 \                  list the observable modules and exit\n\
+\    --dry-run     create VM but do not execute main method.\n\
+\                  This --dry-run option may be useful for validating the\n\
+\                  command-line options such as the module system configuration.\n\
 \    -D<name>=<value>\n\
 \                  set a system property\n\
 \    -verbose:[class|gc|jni]\n\