java - Interning of String.valueOf() -


whilst handling passwords in java, understanding should handled in char[]'s allow gc , remove hanging references.

my question would, 

char[] password = string.valueof(authentication.getcredentials()).tochararray();

could value of authentication.getcredentials() interned or not?

string.valueof() doesn't intern strings. way intern strings during runtime password.intern(). there's no need use char[] passwords. using char[] allows clear array directly after use, narrowing attacker's timeframe dump memory , retrieve plaintext password.

a string nothing special gc. interning affects bit, in regular use wouldn't encounter out of ordinary.


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