protected void waitForXD(int millis) {
		try {
			Thread.sleep(millis);
		}
		catch (Exception ex) {
			// ignore
		}

	}
Asserts the log to see if the data specified is in the log.

@param data The data to check if it is in the log file
@param url The URL of the server we will ssh, to get the data.
spring-xd-integration-test/src/test/java/org/springframework/xd/integration/test/AbstractIntegrationTest.java