Several teams at Sun have collaborated to put together a Virtual Machine Template for the GlassFish WebSpace Server. The image is available in a number of formats for VirtualBox (OVF, VDI) and for VMware Workstation (VMDK) and VMware Server ESX (VMDK) and bundles WebSpace, GlassFish, MySQL, and a JeOS prototype of OpenSolaris.

With this image the evaluation of WSS is very easy: I already had VBox so I first downloaded the OVF Image; then I imported it and accepted its Configuration Panel, started it, read the end point URL from the VBox Console, pointed my browser there and followed the link in the Image Start Page to the WebSpace Welcome Page.

More details at Gabor's Announcement and in the Documentation Page.