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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