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via GitHub by benoitheinrich
, 1 year ago
TreeSetTest$Obj cannot be cast to java.lang.Comparable
java.lang.ClassCastException: TreeSetTest$Obj cannot be cast to java.lang.Comparable at javaslang.collection.Comparators.lambda$naturalComparator$7c28a3e$1( at javaslang.collection.RedBlackTreeModule$Node.insert( at javaslang.collection.RedBlackTree.insert( at javaslang.collection.RedBlackTree.ofAll( at javaslang.collection.TreeSet.ofAll( at javaslang.collection.TreeSet.flatMap( at javaslang.collection.TreeSet.flatMap( at TreeSetTest.testFlapMap(