[MGNLUI-5478] Issue with null representation in TextFieldBinder when type is set to something else than String Created: 06/Nov/19  Updated: 04/Mar/20  Resolved: 11/Dec/19

Status: Closed
Project: Magnolia UI
Component/s: None
Affects Version/s: None
Fix Version/s: 6.2

Type: Bug Priority: Major
Reporter: Milan Divilek Assignee: Milan Divilek
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Relates
relates to MGNLCI-19 Text information not displayed in imp... Open
relation
is related to MGNLUI-5026 Consider a bridge between m5 and m6 d... Closed
is related to MGNLUI-5532 Issue with nullRepresentation vs defa... Closed
Template:
Acceptance criteria:
Empty
Task DoD:
[ ]* Doc/release notes changes? Comment present?
[ ]* Downstream builds green?
[ ]* Solution information and context easily available?
[ ]* Tests
[ ]* FixVersion filled and not yet released
[ ]  Architecture Decision Record (ADR)
Bug DoR:
[ ]* Steps to reproduce, expected, and actual results filled
[ ]* Affected version filled
Sprint: UI Framework 11, UI Framework 12
Story Points: 2

 Description   
salutation:
  label: salutation
  $type: textField
  type: java.lang.Long
  converterClass: com.vaadin.data.converter.StringToLongConverter

This converts text field input into Long type everything works except when field is left empty then this fails on

java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Number at com.vaadin.data.converter.AbstractStringToNumberConverter.convertToPresentation(AbstractStringToNumberConverter.java:40) ~[vaadin-server-8.8.5.jar:8.8.5]

Problem is in info.magnolia.ui.field.TextFieldBinder where is set withNullRepresentation("") which then cause ClassCastException

Instead of TextFieldBinder the info.magnolia.ui.field.factory.FieldBinder$Default could be used but that one then fails with NPE, because vaadin TextField doesn't support null value.


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