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\[[Tutorials 08|AA. Java References#Tutorials 08]\] [Overriding and Hiding Methods|http://java.sun.com/docs/books/tutorial/java/IandI/override.html] \[[Bloch 05|AA. Java References#Bloch 05]\] Puzzle 48: All I Get Is Static \[[JLS 05|AA. Java References#JLS 05]\] 8.4.6.3 Requirements in Overriding and Hiding |
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12. Methods (MET)MET10-J. For methods that return an array or collection prefer returning an empty array or collection over a null value 12. Methods (MET) MET00MET12-J. Follow good design principles while defining methodsthe general contract while overriding the equals method