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Posted to commits@harmony.apache.org by "Mikhail Loenko (JIRA)" <ji...@apache.org> on 2006/05/22 07:10:30 UTC

[jira] Commented: (HARMONY-482) Some code compares Strings with == operator

    [ http://issues.apache.org/jira/browse/HARMONY-482?page=comments#action_12412723 ] 

Mikhail Loenko commented on HARMONY-482:
----------------------------------------

If the code remains unmodified, this works fine.
I think the best way is to develop a unit test that would prevent undesired modifications in the code

> Some code compares Strings with == operator
> -------------------------------------------
>
>          Key: HARMONY-482
>          URL: http://issues.apache.org/jira/browse/HARMONY-482
>      Project: Harmony
>         Type: Bug

>   Components: Classlib
>     Reporter: Mikhail Fursov
>     Assignee: Mikhail Loenko
>     Priority: Trivial

>
> Some classes  (e.g. org.apache.harmony.luni.internal.net.www.protocol.http.HttpUrlConnection) use string comparison by reference instead of comparison by value.
> Such optimization is legal but can lead to problems with compatibility and bugs when part of the code refactored.
>         if (method == "GET")
>             setRequestMethod("POST");
>         // If the request method is neither PUT or POST, then you're not writing
>         if (method != "PUT" && method != "POST")
>             throw new ProtocolException(Msg.getString("K008f", method));

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Re: [jira] Commented: (HARMONY-482) Some code compares Strings with == operator

Posted by Mikhail Loenko <ml...@gmail.com>.
it works! :)

2006/5/23, Mikhail Fursov <mi...@gmail.com>:
> String post1=new String("POST");
> String post2=new String("POST");
>
> :)
>
>
> On 5/23/06, Mikhail Loenko <ml...@gmail.com> wrote:
> >
> > This is the only way I've found to make
> > two different object instances of "POST" string, such that:
> >
> > post1.equals("POST");
> > AND
> > post2.equals("POST");
> > AND
> > post1!=post2
> >
> > Feel free to suggest another way
> >
> > Thanks,
> > Mikhail
> >
> > 2
>
>
>
>
> --
> Mikhail Fursov
> Intel Middleware Products Division
>
>

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Re: [jira] Commented: (HARMONY-482) Some code compares Strings with == operator

Posted by Mikhail Fursov <mi...@gmail.com>.
String post1=new String("POST");
String post2=new String("POST");

:)


On 5/23/06, Mikhail Loenko <ml...@gmail.com> wrote:
>
> This is the only way I've found to make
> two different object instances of "POST" string, such that:
>
> post1.equals("POST");
> AND
> post2.equals("POST");
> AND
> post1!=post2
>
> Feel free to suggest another way
>
> Thanks,
> Mikhail
>
> 2




-- 
Mikhail Fursov
Intel Middleware Products Division

Re: [jira] Commented: (HARMONY-482) Some code compares Strings with == operator

Posted by Mikhail Loenko <ml...@gmail.com>.
This is the only way I've found to make
two different object instances of "POST" string, such that:

post1.equals("POST");
AND
post2.equals("POST");
AND
post1!=post2

Feel free to suggest another way

Thanks,
Mikhail

2006/5/23, Andrew Zhang <zh...@gmail.com>:
> Hi, Mikhail,
>
> I found some code looks strange in the patch, such as
>  c.method = pos + t;
>  c.method = ge+ t;
>
> Is there any reason to write in such way?
>
> Thanks!
>
>
> On 5/22/06, Mikhail Loenko (JIRA) <ji...@apache.org> wrote:
> >
> >    [
> > http://issues.apache.org/jira/browse/HARMONY-482?page=comments#action_12412723]
> >
> > Mikhail Loenko commented on HARMONY-482:
> > ----------------------------------------
> >
> > If the code remains unmodified, this works fine.
> > I think the best way is to develop a unit test that would prevent
> > undesired modifications in the code
> >
> > > Some code compares Strings with == operator
> > > -------------------------------------------
> > >
> > >          Key: HARMONY-482
> > >          URL: http://issues.apache.org/jira/browse/HARMONY-482
> > >      Project: Harmony
> > >         Type: Bug
> >
> > >   Components: Classlib
> > >     Reporter: Mikhail Fursov
> > >     Assignee: Mikhail Loenko
> > >     Priority: Trivial
> >
> > >
> > > Some classes  (e.g.
> > org.apache.harmony.luni.internal.net.www.protocol.http.HttpUrlConnection)
> > use string comparison by reference instead of comparison by value.
> > > Such optimization is legal but can lead to problems with compatibility
> > and bugs when part of the code refactored.
> > >         if (method == "GET")
> > >             setRequestMethod("POST");
> > >         // If the request method is neither PUT or POST, then you're not
> > writing
> > >         if (method != "PUT" && method != "POST")
> > >             throw new ProtocolException(Msg.getString("K008f", method));
> >
> > --
> > This message is automatically generated by JIRA.
> > -
> > If you think it was sent incorrectly contact one of the administrators:
> >   http://issues.apache.org/jira/secure/Administrators.jspa
> > -
> > For more information on JIRA, see:
> >   http://www.atlassian.com/software/jira
> >
> >
>
>
> --
> Andrew Zhang
> China Software Development Lab, IBM
>
>

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Re: [jira] Commented: (HARMONY-482) Some code compares Strings with == operator

Posted by Andrew Zhang <zh...@gmail.com>.
Hi, Mikhail,

I found some code looks strange in the patch, such as
 c.method = pos + t;
 c.method = ge+ t;

Is there any reason to write in such way?

Thanks!


On 5/22/06, Mikhail Loenko (JIRA) <ji...@apache.org> wrote:
>
>    [
> http://issues.apache.org/jira/browse/HARMONY-482?page=comments#action_12412723]
>
> Mikhail Loenko commented on HARMONY-482:
> ----------------------------------------
>
> If the code remains unmodified, this works fine.
> I think the best way is to develop a unit test that would prevent
> undesired modifications in the code
>
> > Some code compares Strings with == operator
> > -------------------------------------------
> >
> >          Key: HARMONY-482
> >          URL: http://issues.apache.org/jira/browse/HARMONY-482
> >      Project: Harmony
> >         Type: Bug
>
> >   Components: Classlib
> >     Reporter: Mikhail Fursov
> >     Assignee: Mikhail Loenko
> >     Priority: Trivial
>
> >
> > Some classes  (e.g.
> org.apache.harmony.luni.internal.net.www.protocol.http.HttpUrlConnection)
> use string comparison by reference instead of comparison by value.
> > Such optimization is legal but can lead to problems with compatibility
> and bugs when part of the code refactored.
> >         if (method == "GET")
> >             setRequestMethod("POST");
> >         // If the request method is neither PUT or POST, then you're not
> writing
> >         if (method != "PUT" && method != "POST")
> >             throw new ProtocolException(Msg.getString("K008f", method));
>
> --
> This message is automatically generated by JIRA.
> -
> If you think it was sent incorrectly contact one of the administrators:
>   http://issues.apache.org/jira/secure/Administrators.jspa
> -
> For more information on JIRA, see:
>   http://www.atlassian.com/software/jira
>
>


-- 
Andrew Zhang
China Software Development Lab, IBM