Null data when calling getExternal on Room Soap Service

Hi

I'm using SOAP integration to get room id or create a room with getExternal room service, but always I call it throws a NPE. Looking the source code for this function I found that Path Param definicion name is externalId with capital I, and the getExternal method PathParam variable externalid is defined with lowercase I. Can you please fix this? o check it?