[MYFACES-3667] UIInput renders the old value after required validation error if field is empty

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.1.6
• Environment: MyFaces 2.1.6, Tomahawk20 1.1.11
• Assignee: Unassigned
• Reporter: dennis hoersch
• Created: 21/Dec/12 12:15
• Updated: 21/Dec/12 16:51
• Resolved: 21/Dec/12 16:51

Description

We have set the parameter 'javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL' to tr.

Scenario:
I have a required input field. I type in a value and submit it. Then I remove the value and try to submit. As expected the validation fails. But now the old value is rendered again.

The reason is that other parts rendering the input test whether submittedValue is null and if so render the value.

If the named parameter is true UIInput set the submittedValue to null if is empty, not only internally during validation method working.

There is a comment in UIInput saying that 'setSubmittedValue(null)' is wrong. Maybe it is wrong and the line should be removed? If I remove it, the behavior is as expected and the empty value is rendered.

---

// Begin new JSF 2.0 requirement (INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL)
if (shouldInterpretEmptyStringSubmittedValuesAsNull(context) && isEmptyString(submittedValue))
{
// -= matzew = setSubmittedValue(null) is wrong, see:
// https://javaserverfaces-spec-public.dev.java.net/issues/show_bug.cgi?id=671
setSubmittedValue(null);
submittedValue = null;
}
// End new JSF 2.0 requirement (INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL)

Issue Links

• duplicates: MYFACES-3525 javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL value affects display behavior for required fields