A better approach, in my opinion, when dealing with optionals, is to use
ifPresent:
RequestCycle.get().find(AjaxRequestTarget.class).ifPresent(target -> {
// The logic you want to apply to your AjaxRequestTarget
});
2016-08-05 8:14 GMT+02:00 Jeroen Steenbeeke <[email protected]>:
> get() is supposed to throw an exception if there is no value. If you want
> it to return null you should do:
>
> RequestCycle.get().find(AjaxRequestTarget.class).orElse(null);
>
> 2016-08-05 1:09 GMT+02:00 Sebastien <[email protected]>:
>
>> Hi dev,
>>
>> I've an issue with
>> org.apache.wicket.request.cycle.RequestCycle.find(Class<T>)
>>
>> If I put this code in a page (#onInitialize, #onConfigure, ...):
>> RequestCycle.get().find(AjaxRequestTarget.class).get(); // expects
>> returning null
>>
>> It breaks with:
>>
>> java.util.NoSuchElementException: No value present
>> at java.util.Optional.get(Optional.java:135)
>> at com.company.MyPage.onConfigure(MyPage.java:78)
>> at org.apache.wicket.Component.configure(Component.java:1053)
>>
>>
>> The debugger seems to go until "return Optional.empty();" as expected, but
>> the RTE is still thrown right after...
>>
>> Could someone confirm?
>>
>> Thanks in advance,
>> Sebastien.
>>
>
>
>
> --
> Jeroen Steenbeeke
>
--
Jeroen Steenbeeke
