Known problems and limitations for web applications
A known problem can apply when you are working with WebSphere® Developer Tools. You can have a problem when you import a WAR file that does not have a deployment descriptor.
For more information about limitations and troubleshooting tips, see Known problems and limitations for WebSphere Application Server Developer Tools for Eclipse.
Limitation when you import a WAR file that does not have a deployment descriptor
If you attempt to import a WAR file using the option , and the WAR file you select does not have a deployment descriptor,
web.xml, and you select a Liberty server configured with a JRE version 6 or
earlier as the target runtime, the OK button is not enabled, and no error is
displayed in the wizard.