Check for the toList() default method on the java.util.stream.Stream interface

A default toList() method has been added to the java.util.stream.Stream interface in Java SE 16. Classes that implement java.util.stream.Stream and another interface which defines a toList() default method might need to be modified to override the toList() method.

Additionally, there is now a source incompatibility with classes that implement or interfaces that extend the java.util.stream.Stream interface and statically import a toList() method. If the application is recompiled using Java SE 16, these references must be updated to use a qualified name instead of a static import.

For more information on these changes, see Add Stream.toList() Method.