Query on usage of exclude-resources plugin

[Sabari L Krishnamoorthy]

Hi,

I was experimenting to use --exclude-resources plugin to remove .class 
files from modules.

While trying to exclude a single .class file using this plugin works (see 
point 1 below), but removal of all .class files from a package throws 
error (see point 2 below)

1)
jdk-9/bin/jlink --module-path jdk-9/jmods/ 
--exclude-resources=/java.desktop/java/awt/image/renderable/ContextualRenderedImageFactory.class 
--add-modules java.desktop --output ./trial

This is working and creating an custom image

2)
jdk-9/bin/jlink --module-path jdk-9/jmods/ 
--exclude-resources=/java.desktop/java/awt/image/renderable/* 
--add-modules java.desktop --output ./trial
Error: Packages that are exported or open in java.desktop are not present: 
[java.awt.image.renderable]

jdk-9/bin/jlink --module-path jdk-9/jmods/ 
--exclude-resources=/java.desktop/sun/font/* --add-modules java.desktop 
--output ./trial
Error: java.lang.RuntimeException: Module java.desktop's descriptor 
returns inconsistent package set

These commands seem to throw different errors.

java -version of the build used:
java version "9-ea"
Java(TM) SE Runtime Environment (build 9-ea+157)
Java HotSpot(TM) 64-Bit Server VM (build 9-ea+157, mixed mode)

Is --exclude-resources expected to handle removal of .class files?   If 
yes, are the errors seen due to bug in the jdk?

Thanks
Sabari