TIL the current hash function for Java strings is of unknown author. In 2004 Joshua Bloch "went so far as to call up Dennis Ritchie, who said that he did not know where the hash function came from. He walked across the hall and asked Brian Kernighan, who also had no recollection." [x-post /r/java] (bugs.java.com)

submitted Jun 2017 by u/walen to r/programming

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