Is there any way to make a key for searching the values in the collections and not returning null keys and values?
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Is there any way to make a key for searching the values in the collections and not returning null keys and values?
Just implement your own
Mapwhich throws for exampleIllegalArgumentExceptioninstead of returningnull.All with all, this makes no sense. If you want, just test the existence of the key using
Map#containsKey()and/or check if the returned value isnullor not.