Fixing indexing issue

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@177815 a5903396-d722-0410-b921-86c7d4935375
Fixing issues in apimgt valve.

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@177816 a5903396-d722-0410-b921-86c7d4935375