Unable to install PMD plugin in Eclipse

[Debasmita Dash]

Hi,

I have Eclipse 3.4 installed on my system and getting issues while installing the PMD plugin.
I did the following for the installation.
Started Eclipse and selected Help --> Software Updates… --> Available Software --> Add Site…
Entered the URL "http://pmd.sf.net/eclipse" for Location and checked the checkbox against the URL.
The fetching process didn't complete and I got the following error

No repository found at http://pmd.sf.net/eclipse
Error reading update site http://pmd.sf.net/eclipse.
Connection timed out: connect

I tried with the URL "http://pmd.sourceforge.net/eclipse" too and got the same error.

Then I thought of setting the proxy cofiguration and selected Window --> Preferences --> General --> Network Connections
In Network Connections enabled the Manual proxy configuration and clicked on OK.
Then, again tried with the plugin installaion but got the same error.

Need help to resolve the issue.