Merge pull request #1457 from Spikhalskiy/1456-failingTest

Provide a failing test for the issue #1456

Author: cowtowncoder

src/test/java/com/fasterxml/jackson/failing/GenericParameterTypeFactory1456Test.java

@@ -0,0 +1,32 @@
+package com.fasterxml.jackson.failing;
+
+
+import com.fasterxml.jackson.databind.JavaType;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.Test;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.Type;
+
+import static org.junit.Assert.assertEquals;
+
+public class GenericParameterTypeFactory1456Test {
+    public static class BaseController<Entity extends BaseEntity> {
+        public void process(Entity entity) {}
+    }
+
+    public static class ImplController extends BaseController<ImplEntity> {}
+
+    public static class BaseEntity {}
+
+    public static class ImplEntity extends BaseEntity {}
+
+    @Test
+    public void testGenericParameterHierarchy() throws NoSuchMethodException {
+        Method proceed = BaseController.class.getMethod("process", BaseEntity.class);
+        Type entityType = proceed.getGenericParameterTypes()[0];
+
+        JavaType resolvedType = new ObjectMapper().getTypeFactory().constructType(entityType, ImplController.class);
+        assertEquals(ImplEntity.class, resolvedType.getRawClass());
+    }
+}