java - Checking all conditions in a logical disjunction -


i found question in line of code. ignore fact code not make sense:

if (object != null || object.somemethod()) object.dosomething();

first thinking code throw nullpointerexception if object null. but, logical disjunction , if 1 of conditions true whole condition true. compiler doesn't checks second condition , doesn't throws nullpointerexception.

is java standard behavior or implementation specific? if second case true code not secure.

when object not null, short-circuit evaluation occurs, , object.somemethod() never called.

when object null, expression should throw nullpointerexception when object.somemethod() evaluated.

this not particularly useful condition. consider whether && intended instead of ||.


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