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Posted to common-issues@hadoop.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2014/06/21 05:47:24 UTC

[jira] [Created] (HADOOP-10733) Potential null dereference in CredentialShell#promptForCredential()

Ted Yu created HADOOP-10733:
-------------------------------

             Summary: Potential null dereference in CredentialShell#promptForCredential()
                 Key: HADOOP-10733
                 URL: https://issues.apache.org/jira/browse/HADOOP-10733
             Project: Hadoop Common
          Issue Type: Bug
            Reporter: Ted Yu
            Priority: Minor


{code}
      char[] newPassword1 = c.readPassword("Enter password: ");
      char[] newPassword2 = c.readPassword("Enter password again: ");
      noMatch = !Arrays.equals(newPassword1, newPassword2);
      if (noMatch) {
        Arrays.fill(newPassword1, ' ');
{code}
newPassword1 might be null, leading to NullPointerException in Arrays.fill() call.



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