http://cr.openjdk.java.net/~mchung/jdk10/webrevs/8189202/webrev.00/ This proposes to add a new jdeps --print-module-deps option to print a comma-separated list of modules that the analyzed classes depend on and such output can be taken by jlink --add-modules option. This will make it easy for users to run jlink to create a custom image. As Paul and Mikael suggest one use is doing something like: $ jlink --module-path jmods --add-modules $(jdeps --print-module-deps myapp.jar) --output image jdeps emits warnings if myapp.jar has split packages with JDK modules and you can use -q to suppress the warnings. jdeps --list-deps and --list-reduced-deps provide similiar information but it also lists dependences to JDK internal APIs. It is intended to print the dependences to make it easy to convert to @modules in jtreg tests and also can be used to set up --add-exports option if needed. This patch also changes these options not to show "not found" and "unnamed module" which are not specific for module dependencies. thanks Mandy