While upgrading to 14.4, we used the Symantec migration tool to initiate the migration process.
During the startup process we faced this error.
Validation error in standalone.xml ------------------------
...
<connector name="https" protocol =""HTTP/1.1" scheme="https" ....
^^^^ 'connector' isn't an allowed element here
Remove the <connector name=https... </connector> element from the XML file in standalone.xml.