Fix #2038 (or rather add a test; real fix in jackson-core)

Author: cowtowncoder

pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.fasterxml.jackson</groupId>
     <artifactId>jackson-base</artifactId>
-    <version>2.9.5</version>
+    <version>2.9.6-SNAPSHOT</version>
   </parent>
 
   <groupId>com.fasterxml.jackson.core</groupId>

src/test/java/com/fasterxml/jackson/databind/TestJDKSerialization.java

@@ -167,13 +167,19 @@ public void testObjectMapper() throws IOException
         final String EXP_JSON = "{\"x\":2,\"y\":3}";
         final MyPojo p = new MyPojo(2, 3);
         assertEquals(EXP_JSON, MAPPER.writeValueAsString(p));
+        assertNotNull(MAPPER.getFactory());
+        assertNotNull(MAPPER.getFactory().getCodec());
 
         byte[] bytes = jdkSerialize(MAPPER);
         ObjectMapper mapper2 = jdkDeserialize(bytes);
         assertEquals(EXP_JSON, mapper2.writeValueAsString(p));
         MyPojo p2 = mapper2.readValue(EXP_JSON, MyPojo.class);
         assertEquals(p.x, p2.x);
         assertEquals(p.y, p2.y);
+
+        // [databind#2038]: verify that codec is not lost
+        assertNotNull(mapper2.getFactory());
+        assertNotNull(mapper2.getFactory().getCodec());
     }
 
     public void testTypeFactory() throws Exception