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NullPointerException when using GWT's AutoBean deserialization with HashMap

public class AutoBeanTest {

 

    @Test

    public void test() throws Exception {

        MyFactory myFactory = AutoBeanFactorySource.create(MyFactory.class);

 

        Options options = myFactory.options().as();

        options.setMyInt(5);

        HashMap<Double, Boolean> map = newHashMap();

        map.put(8.0, true);

        map.put(9.1, false);

 

        options.setMyMap(map);

 

        Options deserialized = AutoBeanCodex.decode(myFactory, Options.class, AutoBeanCodex.encode(AutoBeanUtils.getAutoBean(options)).getPayload()).as();

        assertEquals(deserialized.getMyInt(),5);

        assertTrue(options.getMyMap().containsKey(8d));

        assertTrue(deserialized.getMyMap().containsKey(8d));

    }

 

    public interface MyFactory extends AutoBeanFactory {

        AutoBean<Options> options();

    }

 

    public interface Options {

 

        public int getMyInt();

 

        void setMyInt(int myInt);

 

        Map<Double, Boolean> getMyMap();

 

        void setMyMap(Map<Double, Boolean> myMap);

    }

}