I have a directory in my J2SE project's runtime classpath to grab some configuration files as a resource. Having this directory in the classpath means the copylibs task doesn't copy anything into dist/lib, which is a significant inconvenience. Copylibs should copy whatever it can and just skip what it can't.

To reproduce:
1) Create a Java Application project.
2) Add a jar to the compile-time classpath.
3) Add a directory to the runtime classpath.
4) Build the project.
5) Notice "X is a directory or can't be read. Not copying the libraries." in the output tab.
6) Notice that dist/lib is empty.

If this behavior is intentional, why?

Thanks in advance.