allow to cite the offending value if a validation fails as argument 
(Trusted-Input vs. Filter Concept)
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                 Key: VALIDATOR-228
                 URL: https://issues.apache.org/jira/browse/VALIDATOR-228
             Project: Commons Validator
          Issue Type: Improvement
          Components: Framework
         Environment: any
            Reporter: Ralf Hauser
             Fix For: 1.4


for example if an email recipient in a webmail form is deemed to be wrong, it 
is useful to cite which recipient it was since there could have been several 
recipients in the form.

To do this safely, the email needs to be considered untrusted, since it may 
contain a cross-site-script XSS .

For inspiration, have a look how we paired untrusted inputs (should be the 
default) with filtering in org.bouncycastle.i18n
(if you use it for example in tomcat, there are also some tricky class-loader 
issues that are solved by now...)

previous discussions on this are in 
https://issues.apache.org/struts/browse/STR-1946

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