WebService: Error pops up when drag simple webservice into job

Repro: 1. Create Simple Webservice metadata(notspecified method) 2. Click Finish 3. Drag it into job; Actual: for step 2: Can click Finish and create metadata; see attached DragSimpleWS.jpg for step 3: Error pops up; see attached DragSimpleWS.jpg,errorlog,txt Expect: No Error;