[jira] [Created] (WICKET-6707) Property setter parameter type is assumed to be equal to getter return type

["David Rain (Jira)" <ji...@apache.org>]

David Rain created WICKET-6707:
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             Summary: Property setter parameter type is assumed to be equal to getter return type
                 Key: WICKET-6707
                 URL: https://issues.apache.org/jira/browse/WICKET-6707
             Project: Wicket
          Issue Type: Bug
          Components: wicket-core
    Affects Versions: 8.6.1
            Reporter: David Rain


I am getting error: *Method [public boolean cz.kb.dcs.module_transaction.api.data_objects.cexi.TransactionFormItem.isInstantPayment()]. Can't convert null value to a primitive class: boolean*

This is due to
{code:java}
if (setMethod != null) {
    // getMethod is always there and if the value will be set through a setMethod then
    // the getMethod return type will be its type. Else we have to look at the
    // parameters if the setter but getting the return type is quicker
    type = getMethod.getReturnType();
}
{code}
I have this getter and setter:
{code:java}
    public boolean isInstantPayment() {
        return instantPayment == null ? false : instantPayment.booleanValue();
    }    public void setInstantPayment(final Boolean instantPayment) {
        this.instantPayment = instantPayment;
    }
{code}
So setting NULL *would be possible* (the property itself is object Boolean). Although it is not according to Java Beans specification.



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