THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Wicket 8.0 requires Servlet 3.1
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API changes
Deprecate org.apache.wicket.util.IProvider
Replace it with standard Java 8 java.util.function.Supplier<T> which is virtually identical.
Drop Jetty 7.x and 9.0.x modules for Wicket Native WebSocket WICKET-5990
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