Added method on #1456 test to show that generic type resolution works when resolved through enclosing class

Author: cowtowncoder

src/test/java/com/fasterxml/jackson/databind/deser/builder/BuilderFailTest.java

@@ -1,6 +1,5 @@
 package com.fasterxml.jackson.databind.deser.builder;
 
-import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.*;
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import com.fasterxml.jackson.databind.exc.InvalidDefinitionException;

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

@@ -1,16 +1,15 @@
 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;
+import com.fasterxml.jackson.databind.*;
+import com.fasterxml.jackson.databind.introspect.AnnotatedClass;
+import com.fasterxml.jackson.databind.introspect.AnnotatedMethod;
+import com.fasterxml.jackson.databind.introspect.AnnotatedParameter;
 
-public class GenericParameterTypeFactory1456Test {
+public class GenericParameterTypeFactory1456Test extends BaseMapTest
+{
     public static class BaseController<Entity extends BaseEntity> {
         public void process(Entity entity) {}
     }
@@ -21,12 +20,26 @@ public static class BaseEntity {}
 
     public static class ImplEntity extends BaseEntity {}
 
-    @Test
-    public void testGenericParameterHierarchy() throws NoSuchMethodException {
+    private final ObjectMapper MAPPER = new ObjectMapper();
+    
+    public void testGenericParameterDirect() throws Exception
+    {
         Method proceed = BaseController.class.getMethod("process", BaseEntity.class);
         Type entityType = proceed.getGenericParameterTypes()[0];
 
-        JavaType resolvedType = new ObjectMapper().getTypeFactory().constructType(entityType, ImplController.class);
+        JavaType resolvedType = MAPPER.getTypeFactory().constructType(entityType, ImplController.class);
         assertEquals(ImplEntity.class, resolvedType.getRawClass());
     }
+
+    public void testGenericParameterViaClass() throws Exception
+    {
+        BeanDescription desc = MAPPER.getDeserializationConfig().introspect(
+                MAPPER.constructType(ImplController.class));
+        AnnotatedClass ac = desc.getClassInfo();
+        AnnotatedMethod m = ac.findMethod("process", new Class<?>[] { BaseEntity.class });
+        assertNotNull(m);
+        assertEquals(1, m.getParameterCount());
+        AnnotatedParameter param = m.getParameter(0);
+        assertEquals(ImplEntity.class, param.getType().getRawClass());
+    }
 }