IDEs have had good equals/hashcode auto-generation mechanisms for years. Java itself introduced Objects.hash(Object...) in 1.7 https://docs.oracle.com/javase/7

IDEs have had good equals/hashcode auto-generation mechanisms for years. Java itself introduced Objects.hash(Object...) in 1.7 https://docs.oracle.com/javase/7/docs/api/java/util/Objects.html#hash(java.lang.Object...) https://docs.oracle.com/javase/7/docs/api/java/util/Objects.... It's never really been an issue at all to implement equals/hashcode, which you're required to do for effectively all Collections-based usage anyway.