Derby should use char[] to internally represent passwords, rather than String.
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                 Key: DERBY-5538
                 URL: https://issues.apache.org/jira/browse/DERBY-5538
             Project: Derby
          Issue Type: Bug
          Components: JDBC
            Reporter: Rick Hillegas


I noticed that routines like 
AuthenticationServiceBase.encryptUsingDefaultAlgorithm() represent plaintext 
passwords as Strings. This is unsafe because Strings are easy to sniff even 
after they go out of scope. See the discussion on DERBY-866. We should rephrase 
passwords as char[] and zero them out as soon as possible.

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