On 9/8/2016 6:11 AM, Waldek Kozaczuk wrote:
Imagine you have pre-jigsaw jar like log4j 1.x that happens to depend on
java.awt.* and swing (it does in fact) but I know for a fact my app does
not use this part of it.
Would it be possible to create a modular jar out of non-modular by simply
repackaging it and adding module-info.java that specifies what specifically
my app depends on (is exposed in log4j jar)
Yes. By all means, add module-info.class to your app JAR.
The following thread from August will be helpful if you want to compile
just module-info.java for JDK 9:
http://mail.openjdk.java.net/pipermail/jigsaw-dev/2016-August/009177.html
and what that log4j in my case "requires" from Java 9 in terms of
modules?
The module-info.class file in your app JAR is the declaration of your
application module. It can't contain dependencies for some other module.
If you want your application module to say 'requires log4j', then your
choices are to put log4j on the modulepath as an automatic module, or to
find a version of log4j that is already a modular JAR.
Alex
