2018.2: Generate java code from wsdl : Bug?

When i try to generate java code from wsdl with these parameters (Right click on the wsdl on an empty package > WebServices > Generate Java Code from Wsdl...) :

• Web service wsdl url : file:/C:/Dev/myproject-bom/myproject-services/src/main/resources/Wsdl/myws.wsdl

• Output path :  C:\Dev\myproject-bom\myproject-services\src\main\java

• Package prefix : net.mycompany.webservice

• Web Service Platform : CXF

• Binding to be used : JAXB 2.0

• Output mode : client

I have this error: 

WSDLToJava Error: org.apache.cxf.wsdl11.WSDLRuntimeException: Fail to create wsdl definition from : 

ffile:/C:/Dev/myproject-bom/myproject-services/src/main/java/net/mycompany/webservice/myws.wsdl

When i look into the generated command line in the "run" tool window, i see this :

java.exe 
-classpath [...] 
-Djava.util.logging.config.file=C:\Dev\apps\apache-cxf\apache-cxf-2.4.6/etc/logging.properties 
-Xmx128M org.apache.cxf.tools.wsdlto.WSDLToJava 
-d C:\Dev\myproject-bom\myproject-services\src\main\java
-p net.mycompany.webservice 
-client C:\Dev\myproject-bom\myproject-services\src\main\java\net\mycompany\webservice\myws.wsdl

However, if i change the last line into this :

-client C:\Dev\myproject-bom\myproject-services\src\main\resources\Wsdl\myws.wsdl

and run the command line again, everything works fine and the code is generated.

Anything i'm doing wrong or is this a bug?