added apache license text to certificate validation source files


git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178620 a5903396-d722-0410-b921-86c7d4935375
Adding pagination tests

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178623 a5903396-d722-0410-b921-86c7d4935375
Fixed typo

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178624 a5903396-d722-0410-b921-86c7d4935375