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Dan Haywood commented on ISIS-431: ---------------------------------- The workaround is to declare the type as Boolean, annotate @Optional, and use (val != null && val.booleanValue()) to determine if true: void foo(@Optional Boolean flag) { setFoo(flag !=null && flag.booleanValue()); } > A boolean atribute should never be mandatory > -------------------------------------------- > > Key: ISIS-431 > URL: https://issues.apache.org/jira/browse/ISIS-431 > Project: Isis > Issue Type: Bug > Components: Viewer: Wicket > Affects Versions: viewer-wicket-2.0.0 > Reporter: Jeroen van der Wal > Assignee: Dan Haywood > Priority: Minor > > A boolean attribute only has two states and when the @Optional annotation is > omitted and the boolean is set to false, eg the checkbox is empty, it's > impossible to save the object. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira