make test wait for connection


git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@175570 a5903396-d722-0410-b921-86c7d4935375
applying patch for CARBON-14092

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@175572 a5903396-d722-0410-b921-86c7d4935375