Exception in Usage of Preferences

Question

Hi All,
While Iam using preferences i got an Warning please try to solv this
My Code:
Preferences dbPreferences=Preferences.userRoot().node("com/sum/properties");
String[] connectionNames=dbPreferences.childrenNames();
Gives Warning as
WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5.

Answer 1

chk it
http://help.sap.com/saphelp_nw04s/helpdata/en/1f/464941db42f423e10000000a155106/frameset.htm
Navigation between two dynpro components views
Navigation between 2 Views - Concept of View Set
In Webdynpro Application Navigation is nothing but switching over from one view
to another view say view1 to View2. This can be done by plugs.
There are two types of plug:
1)Inbound Plug
2)OutBound Plug
In every first view has its default inboung plug. At the time when you call
your webdynpro application , interface will call this default inbound plug.
So only we can see our first page in the web browser.
Navigation between two views defined by Outbound and inbound plugs. Which can be connected by Navigation Links. Assume that you are in View1. When you trigger the outbound plugs the corresponding action will be carried out and the navigation will takeplace to a inpound plug which is linked with the corresponding outbound plug.
For more information please gothrough this link,
http://help.sap.com/saphelp_nw2004s/helpdata/en/5f/45093f7c392e5ae10000000a114084/content.htm
I dont think we can do Navigations without plugs.