Exception thrown when rendering Form with validate parameter bound to a bean
that is null after onActivate()
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Key: TAP5-1393
URL: https://issues.apache.org/jira/browse/TAP5-1393
Project: Tapestry 5
Issue Type: Bug
Components: tapestry-beanvalidator
Affects Versions: 5.2.4
Reporter: Matheus Eduardo Machado Moreira
An exception is throw when trying to render a Form whose validate parameter is
bound to a bean that is null after onActivate():
ERROR tapestry.render.br.com.eteg.cromoup.pages.acesso.EditarPermissao - Render
queue error in BeginRender[acesso/EditarPermissao:nome]: Class cannot be null
The attached files show a scenario where the bug occur. Basically it shows an
edit page that initialize a bean (that is bound to the validate parameter of
the Form) at onValidate() if a not-null id is passed as the initialization
context. If the id is null the bean is initialized at onPrepare(), just after
the Form starts to render itself. The problem seems to happen because the
"prepare" (and "prepare_to_render") event are triggered *after* the Form
component pushes a BeanValidationContextImpl into the Environment.
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