Backward Hierarchy:
java.lang.Object -> MethodReference
java.lang.Runnable -> fun_expr(id=0)

Backward References:
MethodReference in MethodReference occurrences = 1
MethodReference.main(1) in MethodReference occurrences = 1
java.lang.String in MethodReference occurrences = 1
java.lang.Thread in MethodReference occurrences = 1
java.lang.Thread.<init>(1) in MethodReference occurrences = 1
java.util.Collections in MethodReference occurrences = 2
java.util.Collections.emptyList(0) in MethodReference occurrences = 1

Class Definitions:
MethodReference in MethodReference
fun_expr(id=0) in MethodReference

Members Signatures: