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https://issues.apache.org/jira/browse/WICKET-5647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Peter Ertl updated WICKET-5647:
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Affects Version/s: 6.16.0
> missing generic cast causes compile error on OS X / jdk 8
> ---------------------------------------------------------
>
> Key: WICKET-5647
> URL: https://issues.apache.org/jira/browse/WICKET-5647
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 6.16.0, 7.0.0-M2
> Environment: OS X 10.9.4
> JDK 1.8.0_11
> Reporter: Peter Ertl
> Assignee: Peter Ertl
>
> when trying to compile wicket-7 from HEAD it fails under OS X / JDK 1.8.0_11.
> Casting a NULL to generic type (T) solves the issues. This seems like some
> odd case of failing type inference.
> The problematic source line is:
> return getEnumImpl(key, eClass, null);
> The compiler error is:
> Error:(792, 35) java: incompatible types: inference variable T has
> incompatible upper bounds java.lang.Enum<T>,T
> This will fix the issue:
> return getEnumImpl(key, eClass, (T)null);
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