To reproduce:

1. invoke Extract Interface on the following code:

class X implements java.io.Serializable {
}

2. Select "Rename original class and use interface where possible" and enter a new name
3. Include "implements Serializable" in the Members to Form Interface section and Refactor

Result:
"Refactoring cannot be performed
File ...java/io/Serializable is located in a jar file"
error message

Expected:
An extracted interface extending Serializable

This same bug was once present in the Extract Superclass refactoring: IDEA-43951



Issue was resolved