How to avoid version information in http response

Hi,
We have a SAP java web application in webdynpro framework developed using SAP NetWeaver.
If I right click on broswer and see View Source of the page, it is displaying information related to Development components, java version, SAP version etc..
I am very new to SAP and would like to know how to avoid the information.
I have already tried setting useServerHeader to false and DevelopmentMode to False in SAP J2EE engine.
Below is the information displayed in the view source.
This page was created by SAP NetWeaver. All rights reserved.
Web Dynpro client:
HTML Client
Web Dynpro client capabilities:
User agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E), client type: msie7, client type profile: ie6, ActiveX: enabled, Cookies: enabled, Frames: enabled, Java applets: enabled, JavaScript: enabled, Tables: enabled, VB Script: enabled
Accessibility mode: false
Web Dynpro runtime:
Vendor: SAP, build ID: 7.0026.20120524121557.0000 (release=NW04S_26_REL, buildtime=2012-05-24:14:38:29[GMT+00:00], changelist=141071, host=VMW4330.wdf.sap.corp), build date: Fri Nov 16 03:56:13 CET 2012
Web Dynpro code generators of DC
SapDictionaryGenerationCore: 7.0021.20091119120521.0000 (release=NW04S_21_REL, buildtime=2009-12-11:15:55:08[UTC], changelist=76328, host=PWDFM114.wdf.sap.corp)
J2EE Engine:
7.00 PatchLevel 129925.450
Java VM:
SAP Java Server VM, version: 4.1.024 21.1-b02, vendor: SAP AG
Operating system:
Linux, version: 2.6.32-131.17.1.el6.x86_64, architecture: amd64
Hope I explained the issue and thank you so much in advance..

Or
Have a look and these query on WD and portal
refer; Disabling the Right click functionality in the Detailed Navigation?
Disable WD ABAP default context menu
Remove / Hide standard right click menu in Web Dynpro ABAP application
Regd Right click functionality in portal

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