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From "Paulex Yang (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HARMONY-1200) [classlib][net] SocketPermission.implies((Permission) null)) expected false but throws NPE
Date Wed, 16 Aug 2006 03:07:20 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-1200?page=all ]

Paulex Yang reassigned HARMONY-1200:

    Assignee: Paulex Yang

> [classlib][net] SocketPermission.implies((Permission) null)) expected false but throws
> ------------------------------------------------------------------------------------------
>                 Key: HARMONY-1200
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1200
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: Denis Kishenko
>         Assigned To: Paulex Yang
>         Attachments: 1200-SocketPermission.patch
> According spec and RI behavior SocketPermission.implies((Permission) null)) should return
FALSE while Harmony throws NPE
> =================== Spec =====================
> Checks if this socket permission object "implies" the specified permission. 
> More specifically, this method first ensures that all of the following are true (and
returns false if any of them are not):
> p is an instanceof SocketPermission,
> p's actions are a proper subset of this object's actions, and
> p's port range is included in this port range. Note: port range is ignored when p only
contains the action, 'resolve'.
> Then implies checks each of the following, in order, and for each returns true if the
stated condition is true:
> If this object was initialized with a single IP address and one of p's IP addresses is
equal to this object's IP address.
> If this object is a wildcard domain (such as *.sun.com), and p's canonical name (the
name without any preceding *) ends with this object's canonical host name. For example, *.sun.com
implies *.eng.sun.com..
> If this object was not initialized with a single IP address, and one of this object's
IP addresses equals one of p's IP addresses.
> If this canonical name equals p's canonical name.
> If none of the above are true, implies returns FALSE. 
> ===================== Test =====================
> import java.net.*;
> import java.security.Permission;
> public class bug9446 {
>     public static void main (String[] args) {
>        try {
>            SocketPermission sp = new SocketPermission("harmony", "connect");
>            System.out.println("res=" + sp.implies((Permission) null));
>        } catch (Exception e) {
>            e.printStackTrace();
>        }
>     }
> }
> ================== Output ====================== 
> RI
> res=false
> Harmony
> java.lang.NullPointerException
>     at java.net.SocketPermission.implies(SocketPermission.java:242)
>     at bug9446.main(bug9446.java:9)

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