Hi Lokesh,I still see the same issue after adding maven-enforcer plugin, I am using maven 3.5.0, I changed the requireMavenVersion to 3.5.0 and using Java 1.8

I am  trying to setup my env for unit test for sling models for AEM 6.3there is one error I see when running maven buildTests run: 3, Failures: 0, Errors: 3, Skipped: 0, Time elapsed: 1.165 sec <<< FAILURE! - in com.mcmc.aem.models.impl.BreadcrumbImplTesttestStyleBasedBreadcrumb(org.cshs.aem.models....

I do see the same issue when using sightly image component. This works fine in my localhost and our dev environment.We are seeing this issue in QA environment only, however our environments are exact replica of one another.

http://helpx.adobe.com/experience-manager/kb/CQ5HowToSetupRemoteDebuggingWithEclipse.html