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via scala-lang.org by Unknown author, 2 years ago
via grokbase.com by Unknown author, 2 years ago
Flat hash tables cannot contain null elements.
via YouTrack by Unknown author, 2 years ago
java.lang.IllegalArgumentException: Flat hash tables cannot contain null elements.	at scala.collection.mutable.FlatHashTable$HashUtils$class.elemHashCode(FlatHashTable.scala:348)	at scala.collection.mutable.HashSet.elemHashCode(HashSet.scala:41)	at scala.collection.mutable.FlatHashTable$class.containsEntry(FlatHashTable.scala:109)