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https://issues.apache.org/jira/browse/WICKET-2241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guðmundur Bjarni Ólafsson updated WICKET-2241:
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Attachment: 0001-WICKET-2241-Support-for-Guice-s-Inject-optional.patch
Wrote a simple fix which adds an optional parameter to GuiceProxyTargetLocator.
Before calling injector.getInstance(key) it checks whether the target is
optional, if it is Guice is asked whether a binding exists (via
injector.getBinding(key)) and if there is no binding a null is returned from
the locator. Otherwise it just proceeds as it did before.
> Guice integration doesn't honour optional bindings
> --------------------------------------------------
>
> Key: WICKET-2241
> URL: https://issues.apache.org/jira/browse/WICKET-2241
> Project: Wicket
> Issue Type: Bug
> Components: wicket-guice
> Reporter: Jesse Wilson
> Priority: Minor
> Attachments:
> 0001-WICKET-2241-Support-for-Guice-s-Inject-optional.patch
>
>
> When @Inject(optional=true) is applied and the binding isn't available,
> wicket should skip the injection silently.
> http://groups.google.com/group/google-guice/browse_thread/thread/2abe9b55ee26a198
> To check whether the binding is available, you need to use a try/catch block:
> try {
> Binding binding = injector.getBinding(key);
> // use the binding
> } catch (ConfigurationException e) {
> // the binding isn't available
> }
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