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Ulrich Stärk commented on TAP5-520: ----------------------------------- I bet this is because tapestry thinks that after the comma, a new validator will follow. Can't you rewrite your regexp to not contain the {2,4} constraint? Is that necessary at all with the + quantifier in place? > Regexp validator parse error > ---------------------------- > > Key: TAP5-520 > URL: https://issues.apache.org/jira/browse/TAP5-520 > Project: Tapestry 5 > Issue Type: Bug > Components: tapestry-core > Affects Versions: 5.0.18 > Reporter: Konstantin Miklevskiy > > Try adding this field to your form: > @Validate("regexp=^([a-zA-Z0-9]{2,4})+$") > private String somefield; > Page will fail to render with exception saying: > Render queue error in BeginRender[mypage.somefield]: Failure reading > parameter 'validate' of component mypage.somefield: Coercion of > ^([a-zA-Z0-9]{2 to type java.util.regex.Pattern (via String --> > java.util.regex.Pattern) failed: Unclosed counted closure near index 15 > ^([a-zA-Z0-9]{2 ^ -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.