Hi All,
Finally I got the solution of this problem . Now I am able to work smoothly without any disturbance of this credential Prompt in
Eclipse Java EE IDE for Web Developers [Version: Helios Service Release 2]. I tried many thing But the Actual solution is below .
1. Go to Window Menu -> Preference
2. select General->Network Option
3. This page will have active provider as Manual in drop down .
4. Change It to
Direct
5. Apply the changes and Enjoy
Also look into the screen shot here for help .