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https://issues.apache.org/jira/browse/BEANUTILS-175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12501005
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Baptiste MATHUS commented on BEANUTILS-175:
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To answer (well, four years later... :)) about it: I think this class could in
fact be added for the best of both worlds: the PropertyUtilsBean class would
use the default ExceptionHandler implementation that would behave exactly like
now, and other implementations could just return null if wanted when accessing
say "a.b" with a being null.
> [beanutils] Handling of exceptions thrown during BeanUtils.populate
> -------------------------------------------------------------------
>
> Key: BEANUTILS-175
> URL: https://issues.apache.org/jira/browse/BEANUTILS-175
> Project: Commons BeanUtils
> Issue Type: Improvement
> Components: Bean / Property Utils
> Environment: Operating System: All
> Platform: All
> Reporter: Eric Pabst
> Priority: Minor
> Fix For: LATER THAN 1.8.0
>
>
> I run into a problem when using Struts to populate request parameters to a
> form's nested property when either the conversion from String to int (for
> example) fails or when the set method in the nested bean throws an exception
> such as IllegalArgumentException.
> I propose that we add a property to BeanUtilsBean for a new interface called
> something like PopulateExceptionHandler which will have a method something
> like
> void execute(Exception exception, Object bean, String propertyPath,
> Object
> value)
> Then, within BeanUtilsBean.populate, within the loop, it would catch any
> exception, and call the populateExceptionHandler's execute method with it
> (unwrapping InvocationTargetException's). The default handler would just
> rethrow it (or we could have no default handler, and if no handler is
> present,
> the BeanUtils method rethrows it).
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