vim25.jar file has no manifest?

I downloaded the vsphere_client_sdk today:

vimclients-public-sdk-6.0.0.3018528.zip

I'm building a plugin for vCenter that uses the vim25 API.  When I upgraded my development environment, I got the following error:

    Resolver report:

        An Import-Package could not be resolved. Resolver error data <Import-Package: com.vmware.vim25; version="0.0.0">. Caused by missing constraint in bundle <com.samsung.autocachewebclient-service_1.0.0>

             constraint: <Import-Package: com.vmware.vim25; version="0.0.0">

After doing some investigation, I found that the vim25.jar's MANIFEST.MF file was basically empty.

Is this a bug in the SDK?  I've solved my immediate problem by adding an OSGi compliant manifest, but don't really want to release a product that uses a doctored vim25.jar file.