[RESTEASY-1532] Disable JsonGenerator.Feature.AUTO_CLOSE_TARGET

providers/jackson2/src/main/java/org/jboss/resteasy/plugins/providers/jackson/ResteasyJackson2Provider.java

@@ -174,6 +174,7 @@ public void flush() throws IOException {
       */
       JsonEncoding enc = findEncoding(mediaType, httpHeaders);
       JsonGenerator jg = writer.getFactory().createGenerator(entityStream, enc);
+      jg.disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET);
 
       try {
          // Want indentation?

testsuite/integration-tests/src/test/java/org/jboss/resteasy/test/providers/jackson2/ExceptionMapperMarshalTest.java

@@ -6,11 +6,13 @@
 import org.jboss.logging.Logger;
 import org.jboss.resteasy.client.jaxrs.ResteasyClient;
 import org.jboss.resteasy.client.jaxrs.ResteasyClientBuilder;
+import org.jboss.resteasy.test.providers.jackson2.resource.ExceptionMapperIOExceptionMapper;
 import org.jboss.resteasy.test.providers.jackson2.resource.ExceptionMapperMarshalErrorMessage;
 import org.jboss.resteasy.test.providers.jackson2.resource.ExceptionMapperMarshalMyCustomException;
 import org.jboss.resteasy.test.providers.jackson2.resource.ExceptionMapperMarshalName;
 import org.jboss.resteasy.test.providers.jackson2.resource.ExceptionMapperMarshalMyCustomExceptionMapper;
 import org.jboss.resteasy.test.providers.jackson2.resource.ExceptionMapperMarshalResource;
+import org.jboss.resteasy.test.providers.jackson2.resource.MyEntity;
 import org.jboss.resteasy.util.HttpResponseCodes;
 import org.jboss.resteasy.util.Types;
 import org.jboss.resteasy.utils.PortProviderUtil;
@@ -47,6 +49,7 @@ public static Archive<?> deploy() {
         WebArchive war = TestUtil.prepareArchive(ProxyWithGenericReturnTypeJacksonTest.class.getSimpleName());
         war.addClass(Jackson2Test.class);
         return TestUtil.finishContainerPrepare(war, null, ExceptionMapperMarshalErrorMessage.class, ExceptionMapperMarshalMyCustomException.class,
+                MyEntity.class, ExceptionMapperIOExceptionMapper.class,
                 ExceptionMapperMarshalMyCustomExceptionMapper.class, ExceptionMapperMarshalName.class, ExceptionMapperMarshalResource.class);
     }
 
@@ -80,4 +83,13 @@ public void testCustomUsed() {
         });
         Assert.assertEquals("The response has unexpected content", "error", errors.get(0).getError());
     }
+
+    @Test
+    public void testMyCustomUsed() {
+        Response response = client.target(generateURL("/resource/customME")).request().get();
+        String text = response.readEntity(String.class);
+
+        Assert.assertEquals(response.getStatus(), HttpResponseCodes.SC_OK);
+        Assert.assertTrue("Response does not contain UN_KNOWN_ERR", text.contains("UN_KNOWN_ERR"));
+    }
 }

testsuite/integration-tests/src/test/java/org/jboss/resteasy/test/providers/jackson2/resource/ExceptionMapperIOExceptionMapper.java

@@ -0,0 +1,25 @@
+package org.jboss.resteasy.test.providers.jackson2.resource;
+
+import java.util.HashMap;
+import java.util.Map;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.ext.ExceptionMapper;
+import javax.ws.rs.ext.Provider;
+
+/**
+ * User: rsearls
+ * Date: 10/26/16
+ */
+@Provider
+public class ExceptionMapperIOExceptionMapper implements ExceptionMapper<Throwable> {
+    @Override
+    public Response toResponse(Throwable e) {
+        Map<String, Object> result = new HashMap<>();
+        result.put("err_msg", "UN_KNOWN_ERR");
+        result.put("err_detail", "please contact admin for help");
+        return Response.status(Response.Status.OK).entity(result)
+            .type(MediaType.APPLICATION_JSON_TYPE).build();
+
+    }
+}

testsuite/integration-tests/src/test/java/org/jboss/resteasy/test/providers/jackson2/resource/ExceptionMapperMarshalResource.java

@@ -1,7 +1,12 @@
 package org.jboss.resteasy.test.providers.jackson2.resource;
 
+import javax.ws.rs.Consumes;
 import javax.ws.rs.GET;
 import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
 import java.util.List;
 
 @Path("resource")
@@ -12,5 +17,12 @@ public List<ExceptionMapperMarshalName> custom() throws Throwable {
         throw new ExceptionMapperMarshalMyCustomException("hello");
     }
 
-
+    @GET
+    @Path("customME")
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    public Response test() {
+        MyEntity entity = new MyEntity();
+        return Response.status(Response.Status.OK).entity(entity).build();
+    }
 }

testsuite/integration-tests/src/test/java/org/jboss/resteasy/test/providers/jackson2/resource/MyEntity.java

@@ -0,0 +1,10 @@
+package org.jboss.resteasy.test.providers.jackson2.resource;
+
+/**
+ * A missing JSON annotation is intended.  This causes the needed exception
+ * for testing.
+ * User: rsearls
+ * Date: 10/13/16
+ */
+public class MyEntity {
+}