private ContainerInfo updateWithAppServerInfo( ContainerInfo appServerInfo, int clusterPortOffset) { try { String appServerContextRootStr = isRelative(testContext.getTestClass()) ? getAuthServerContextRoot(clusterPortOffset) : getAppServerContextRoot(clusterPortOffset); appServerInfo.setContextRoot(new URL(appServerContextRootStr)); } catch (MalformedURLException ex) { throw new IllegalArgumentException(ex); } return appServerInfo; }