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https://issues.jboss.org/browse/RF-13648?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12972814#comment-12972814
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Juraj Húska commented on RF-13648:
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Thank you [~tony.cramer] for the reproducer. However, I need to repeat my
previous conclusion.
The behavior is expected, and it is defined in EL specification.
It worked prior Tomcat 8.0.8 because there was a
[bug|https://issues.apache.org/bugzilla/show_bug.cgi?id=56522#c1] in jasper,
which is now fixed and meets the EL spec.
There is an [issue|https://java.net/jira/browse/EL_SPEC-18] filed for EL spec
though, which should address your problem.
This is not a RichFaces bug.
> Graph Validator + Tomcat 8.0.8: interpret empty strings as null is ignored
> --------------------------------------------------------------------------
>
> Key: RF-13648
> URL: https://issues.jboss.org/browse/RF-13648
> Project: RichFaces
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Affects Versions: 4.3.7
> Environment: Tomcat 8.0.8, OpenJDK 7, OpenSuse 13.1 x64
> Reporter: Tony Cramer
> Assignee: Juraj Húska
> Attachments: rf-demo.zip
>
>
> {{javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL}} is ignored
> during Graph validating.
> Some debugging info:
> Object being validated ({{value}} argument) in method
> {{org.richfaces.validator.BeanValidatorServiceImpl.validateObject}} contains
> empty strings ("").
> Expected behavior: There should be nulls in properties, because interpreting
> empty strings as null is enabled.
> This causes validation to not pass.
> Something has changed in _jasper-el_ in Tomcat 8.0.8 which I updated recently
> from 8.0.5. If I replace _jasper-el.jar_ from Tomcat 8.0.5, everything works.
> Tomcat bug or RF bug?
> Edit:
> It's definitely JSF/RF's issue. Tomcat EL has changed to meet EL spec.
> https://issues.apache.org/bugzilla/show_bug.cgi?id=56522
> Edit:
> Simple project for reproducing the issue attached (rf-demo.zip).
> - Build WAR with Maven (3.2.1 tested)
> - Get a clean Tomcat 8.0.8, unpack
> - Place WAR into webapps
> - Run tomcat
> - Open http://localhost:8080/rf-demo-1.0-SNAPSHOT
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