Mailing-List: contact issues-help@commons.apache.org; run by ezmlm
Precedence: bulk
Reply-To: issues@commons.apache.org
Message-ID: <1503265252.1226003329691.JavaMail.jira@brutus>
Date: Thu, 6 Nov 2008 12:28:49 -0800 (PST)
From: "Henri Yandell (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
Subject: [jira] Updated: (LANG-456) HashCodeBuilder throws
 StackOverflowError in bidirectional navigable association
In-Reply-To: <926828740.1219846904284.JavaMail.jira@brutus>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


     [ https://issues.apache.org/jira/browse/LANG-456?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Henri Yandell updated LANG-456:
-------------------------------

    Fix Version/s: 3.0

> HashCodeBuilder throws StackOverflowError in bidirectional navigable association
> --------------------------------------------------------------------------------
>
>                 Key: LANG-456
>                 URL: https://issues.apache.org/jira/browse/LANG-456
>             Project: Commons Lang
>          Issue Type: Bug
>    Affects Versions: 2.4
>         Environment: Widows XP. Sun JDK 1.5 or 1.6.
>            Reporter: Bob Fields
>             Fix For: 3.0
>
>         Attachments: HashCodeBuilderStackOverflow.zip, StackOverflowError.zip
>
>
> This is not the reflection methods, it is the regular HashCodeBuilder append methods. It causes EqualsBuilder, ToStringBuilder, CompareToBuilder to also throw the StackOverflowException, but those methods work when one of the HashCodeBuilder bidirectional association attributes .hashCode() is commented out. The problem is that all of the builders call registerObject() which creates a hashCode, but only the reflectionAppend method checks if an object is registered.
> Bi-directional associations are a very common pattern in Jaxb and Hibernate. In this case, I generate code from a model in order to avoid the reflection penalty - I already know what the attributes are at compile time, so I use .append instead of .reflectionAppend.
> See attached example + unit test. One side of the bidirectional association must be commented out in the hashCode method.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.