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From "Paulex Yang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-84) java.net.InetAddress() shouldn't perform reverse name lookup
Date Fri, 10 Feb 2006 04:52:55 GMT
java.net.InetAddress() shouldn't perform reverse name lookup
------------------------------------------------------------

         Key: HARMONY-84
         URL: http://issues.apache.org/jira/browse/HARMONY-84
     Project: Harmony
        Type: Bug
  Components: Classlib  
    Reporter: Paulex Yang
    Priority: Minor


Currently,  the java.net.InetAddress.toString() is as below:
    <code>
    public String toString() {
        return getHostName() + "/" + getHostAddress();
    }
    </code>

    But actually the toString() should behave differently with getHostName()!
    the Java spec for toString():
    <spec>
        Converts this IP address to a String. The string returned is of the form: hostname
/ literal IP address. If the host name is unresolved, no reverse name service loopup is performed.
The hostname part will be represented by an empty string.
    </spec>
    and the spec for getHostName() says:
    <spec>
    If this InetAddress was created with a host name, this host name will be remembered and
returned; otherwise, a reverse name lookup will be performed and the result will be returned
based on the system configured name lookup service.
    </spec>

    Spec shows that toString() shouldn't perform reverse name lookup while getHostName() should!

    A simple test show this bug:
    <code>
    public class ToStringTest{
    public static void main(String[] args) throws Exception{
        InetAddress addr = InetAddress.getByName("localhost");
        System.out.println(addr);
        InetAddress addr2 = InetAddress.getByAddress(new byte[]{127, 0, 0, 1});
        System.out.println(addr2);
    }
    }
    </code>
    on RI, it outputs:
        localhost/127.0.0.1
        /127.0.0.1

    and on Harmony, it outputs:
        localhost/127.0.0.1
        localhost/127.0.0.1


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