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From "Simone Tripodi (Reopened) (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (DIGESTER-153) Add Constructor support to ObjectCreateRule
Date Sat, 03 Dec 2011 19:12:39 GMT

     [ https://issues.apache.org/jira/browse/DIGESTER-153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Simone Tripodi reopened DIGESTER-153:
-------------------------------------


sorry for bugging again on this, unfortunately there still is a case where the lazy loader
fails ;(

When classes have not the default empty constructor, CGLIB complains

{code}
java.lang.IllegalArgumentException: Superclass has no null constructors but no arguments were
given
	at net.sf.cglib.proxy.Enhancer.emitConstructors(Enhancer.java:721)
	at net.sf.cglib.proxy.Enhancer.generateClass(Enhancer.java:499)
	at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
	at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:216)
	at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
	at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:285)
	at org.apache.commons.digester3.ObjectCreateRule.createLazyProxy(ObjectCreateRule.java:283)
	at org.apache.commons.digester3.ObjectCreateRule.begin(ObjectCreateRule.java:262)
	at org.apache.commons.digester3.Digester.startElement(Digester.java:1350)
{code}

you can test it simply by removing the empty constructor in {{org.apache.commons.digester3.TestBean}}

Thanks a lot for your help in advance!
                
> Add Constructor support to ObjectCreateRule
> -------------------------------------------
>
>                 Key: DIGESTER-153
>                 URL: https://issues.apache.org/jira/browse/DIGESTER-153
>             Project: Commons Digester
>          Issue Type: Improvement
>    Affects Versions: 3.2
>            Reporter: Simone Tripodi
>            Assignee: Simone Tripodi
>             Fix For: 3.2
>
>
> As shown in the past, the stack method of Digester has some [limitations |http://markmail.org/message/wick27gw6n5weqk2]
for fully support the Constructors - it basically cannot use elements in the body as constructor
arguments - but it could support arguments extracted from attributes. 

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