Add failing test for #2024

Author: cowtowncoder

src/test/java/com/fasterxml/jackson/databind/deser/filter/NullConversionsGenericTest.java

@@ -3,8 +3,6 @@
 import java.util.List;
 import java.util.Map;
 
-import com.fasterxml.jackson.annotation.JsonCreator;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonSetter;
 import com.fasterxml.jackson.annotation.Nulls;
 import com.fasterxml.jackson.core.type.TypeReference;

src/test/java/com/fasterxml/jackson/failing/NullConversionWithCreatorTest.java

@@ -0,0 +1,34 @@
+package com.fasterxml.jackson.failing;
+
+import com.fasterxml.jackson.annotation.*;
+
+import com.fasterxml.jackson.databind.*;
+
+public class NullConversionWithCreatorTest extends BaseMapTest
+{
+    static class EmptyFromNullViaCreator {
+        Point p;
+
+        @JsonCreator(mode = JsonCreator.Mode.PROPERTIES)
+        public EmptyFromNullViaCreator(@JsonSetter(nulls=Nulls.AS_EMPTY)
+            @JsonProperty("p") Point p)
+        {
+            this.p = p;
+        }
+    }
+
+    /*
+    /**********************************************************
+    /* Test methods
+    /**********************************************************
+     */
+    private final ObjectMapper MAPPER = newObjectMapper();
+
+    public void testEmptyFromNullViaCreator() throws Exception
+    {
+        EmptyFromNullViaCreator result = MAPPER.readValue(aposToQuotes("{'p':null}"),
+                EmptyFromNullViaCreator.class);
+        assertNotNull(result);
+        assertNotNull(result.p);
+    }
+}