Failed to run webcenter components

i am trying to install oracle webcenter and some of its compnents like wls_portlet and wls_spaces, in order to deploy and test my portlet in Oracle environment. i have first installed Oracle Weblogic Server. Then installed necessary开发者_运维技巧 repositories for those webcenter components through RCU. finally i installed webcenter, and extended a weblogic domain. Weblogic and webcenter seem like running properly, i can login to /console (Administration Console) and /em (Fusion MiddleWare Control).

two other component, wls_portlet and wls_spaces have their own "server", which seems like running. but non of the deployments under those two is working, and "server" replies 404 for every request. i have checked logs and found some classnotfound exceptions. java.lang.ClassNotFoundException: oracle.dms.wls.DMSServletFilter this one is the number one of a long exception series.

Here is two screenshots which help familiar eyes to visualize the situation alt text http://www.freeimagehosting.net/uploads/th.ff1a4f9b3b.jpg

alt text http://www.freeimagehosting.net/uploads/th.08db701994.jpg

Make sure that WC_Spaces and WC_Portlet is running. It is hard to tell from the images provided. In the left hand navigation of the Fusion Middleware Control, expand the domain and right click on WC_Spaces. A drop down menu should appear with the option to select Control -> Startup. This should start the instance and in the right hand side the status will show green and the port. For WC_Spaces the default url and port is http://localhost:8889/webcenter/.

The default port of WC_Spaces is 8888.