Endpoint found on Windows but not on Red Hat Linux

I am using testrunner to run tests on the command-line. The endpoint is in an oracle cloud. When I am using a Windows 10 machine I am successfully able to execute the tests. Using the same test xml file on Red Hat Linux results in the following error: 

10:42:02,021 ERROR [SoapUI] An error occurred [Unknown property 'host'], see error log for details
java.lang.NoSuchMethodException: Unknown property 'host'

I am able to easily run tests against endpoints that are not in the cloud.

 

I am able to do an nslookup on the endpoint server name on both Windows and RHEL. The text messages are different but the IP address is the same. What other experiments can I perform to determine where the configuration error is?

 

How does SOAPUI verify the host name of the endpoint so that it can correctly set the host property?

 

Thanks,

 

Marianne