src/jdk.jlink/share/classes/jdk/tools/jmod/JmodTask.java

rev 48074 : 8189102: All tools should support -?, -h and --help
Reviewed-by: kvn, jjg, weijun, alanb, rfield, ksrini

@@ -1307,11 +1307,11 @@
                 = parser.accepts("hash-modules", getMessage("main.opt.hash-modules"))
                         .withRequiredArg()
                         .withValuesConvertedBy(new PatternConverter());
 
         OptionSpec<Void> help
-                = parser.acceptsAll(Set.of("h", "help"), getMessage("main.opt.help"))
+                = parser.acceptsAll(Set.of("h", "help", "?"), getMessage("main.opt.help"))
                         .forHelp();
 
         OptionSpec<Void> helpExtra
                 = parser.accepts("help-extra", getMessage("main.opt.help-extra"));