How to do Force update snapshots / releases maven on eclipse

And after that go to Eclipse 

Right click on your project after that
Maven -> Update your project - >
Click Force update of  snapshots / Releases

Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.5

Solution :
Under .M2 folder(hint: click on start->search for .M2 it will show list of folders select .M2 folder)

Settings.xml file might be missing proxy settings or

Your proxy settings password expired

Just in case if you don't have any proxy details you can use this

<?xml version="1.0"?>
<settings>
 <proxies>
  <proxy>
   <active>true</active>
   <protocol>http</protocol>
   <host>proxyurl</host>
   <port>8080</port>
   <username>proxyusername</username>
   <password>password</password>
  </proxy>
 </proxies>
</settings>


And after that go to Eclipse 

Right click on your project after that
Maven -> Update your project - >
Click Force update of  snapshots / Releases

what is the path or where can I find settings.xml file

Start -> Search for .m2 folder

you will get folder  open that folder..

you can see settings.xml file.

-bash: mvn: command not found

For this  your settings.xml is not proper.

Start -> Search for .M2 folder

Open .M2 folder and replace settings.xml

How to remove or delete cookies in firefox mozilla browser

To remove cookies in Firefox

Tools -> Options -> Privacy - > Firefox will (Dropdown) -> User custom settings for history

Click on Show Cookies button

Please find screen shot steps here
https://support.mozilla.org/en-US/kb/delete-cookies-remove-info-websites-stored

Unit testing in Java eclipse plugin

http://www.eclemma.org/

How to do test estimation

http://sqa.fyicenter.com/FAQ/Testing-Techniques/How_to_do_Estimating_Testing_effort_.html


http://www.requirementdriventesting.com/testing-estimate/

http://www.qualitytesting.info/forum/topics/test-effort-estimation?id=2064344%3ATopic%3A458859&page=2#comments


Automation test estimation
http://www.stepinforum.org/Test_Automation/TA_finaltalk/PDFs/Papers/TEST%20AUTOMATION%20EFFORT%20ESTIMATION.pdf