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Posted to commits@ignite.apache.org by ak...@apache.org on 2017/04/28 06:57:52 UTC

[31/59] [abbrv] ignite git commit: IGNITE-5095 NULL strings in REST-HTTP should be serialized as null.

IGNITE-5095 NULL strings in REST-HTTP should be serialized as null.


Project: http://git-wip-us.apache.org/repos/asf/ignite/repo
Commit: http://git-wip-us.apache.org/repos/asf/ignite/commit/6ccfc0b2
Tree: http://git-wip-us.apache.org/repos/asf/ignite/tree/6ccfc0b2
Diff: http://git-wip-us.apache.org/repos/asf/ignite/diff/6ccfc0b2

Branch: refs/heads/master
Commit: 6ccfc0b26ea9af2d40d76359e3da621f0fded95d
Parents: f5db974
Author: Alexey Kuznetsov <ak...@apache.org>
Authored: Thu Apr 27 15:37:17 2017 +0700
Committer: Alexey Kuznetsov <ak...@apache.org>
Committed: Thu Apr 27 15:37:17 2017 +0700

----------------------------------------------------------------------
 .../client/ClientDefaultCacheSelfTest.java      |   4 +-
 .../JettyRestProcessorAbstractSelfTest.java     | 143 +++++++++----------
 .../http/jetty/GridJettyObjectMapper.java       |  13 +-
 3 files changed, 74 insertions(+), 86 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/ignite/blob/6ccfc0b2/modules/clients/src/test/java/org/apache/ignite/internal/client/ClientDefaultCacheSelfTest.java
----------------------------------------------------------------------
diff --git a/modules/clients/src/test/java/org/apache/ignite/internal/client/ClientDefaultCacheSelfTest.java b/modules/clients/src/test/java/org/apache/ignite/internal/client/ClientDefaultCacheSelfTest.java
index 25fa2e9..2fe6084 100644
--- a/modules/clients/src/test/java/org/apache/ignite/internal/client/ClientDefaultCacheSelfTest.java
+++ b/modules/clients/src/test/java/org/apache/ignite/internal/client/ClientDefaultCacheSelfTest.java
@@ -176,8 +176,8 @@ public class ClientDefaultCacheSelfTest extends GridCommonAbstractTest {
 
         assertFalse(node.get("affinityNodeId").asText().isEmpty());
         assertEquals(0, node.get("successStatus").asInt());
-        assertTrue(node.get("error").asText().isEmpty());
-        assertTrue(node.get("sessionToken").asText().isEmpty());
+        assertTrue(node.get("error").isNull());
+        assertTrue(node.get("sessionToken").isNull());
 
         return node.get("response");
     }

http://git-wip-us.apache.org/repos/asf/ignite/blob/6ccfc0b2/modules/clients/src/test/java/org/apache/ignite/internal/processors/rest/JettyRestProcessorAbstractSelfTest.java
----------------------------------------------------------------------
diff --git a/modules/clients/src/test/java/org/apache/ignite/internal/processors/rest/JettyRestProcessorAbstractSelfTest.java b/modules/clients/src/test/java/org/apache/ignite/internal/processors/rest/JettyRestProcessorAbstractSelfTest.java
index 130d9d1..0207782 100644
--- a/modules/clients/src/test/java/org/apache/ignite/internal/processors/rest/JettyRestProcessorAbstractSelfTest.java
+++ b/modules/clients/src/test/java/org/apache/ignite/internal/processors/rest/JettyRestProcessorAbstractSelfTest.java
@@ -238,9 +238,9 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
         JsonNode node = JSON_MAPPER.readTree(content);
 
         assertEquals(1, node.get("successStatus").asInt());
-        assertFalse(node.get("error").asText().isEmpty());
+        assertFalse(node.get("error").isNull());
         assertTrue(node.get("response").isNull());
-        assertTrue(node.get("sessionToken").asText().isEmpty());
+        assertTrue(node.get("sessionToken").isNull());
     }
 
     /**
@@ -270,11 +270,11 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         JsonNode node = JSON_MAPPER.readTree(content);
 
-        assertEquals(bulk, node.get("affinityNodeId").asText().isEmpty());
+        assertEquals(bulk, node.get("affinityNodeId").isNull());
         assertEquals(0, node.get("successStatus").asInt());
-        assertTrue(node.get("error").asText().isEmpty());
+        assertTrue(node.get("error").isNull());
 
-        assertNotSame(securityEnabled(), node.get("sessionToken").asText().isEmpty());
+        assertNotSame(securityEnabled(), node.get("sessionToken").isNull());
 
         return node.get("response");
     }
@@ -319,9 +319,9 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
         JsonNode node = JSON_MAPPER.readTree(content);
 
         assertEquals(0, node.get("successStatus").asInt());
-        assertTrue(node.get("error").asText().isEmpty());
+        assertTrue(node.get("error").isNull());
 
-        assertNotSame(securityEnabled(), node.get("sessionToken").asText().isEmpty());
+        assertNotSame(securityEnabled(), node.get("sessionToken").isNull());
 
         return node.get("response");
     }
@@ -337,18 +337,18 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
         JsonNode node = JSON_MAPPER.readTree(content);
 
         assertEquals(0, node.get("successStatus").asInt());
-        assertTrue(node.get("error").asText().isEmpty());
+        assertTrue(node.get("error").isNull());
         assertFalse(node.get("response").isNull());
 
-        assertEquals(securityEnabled(), !node.get("sessionToken").asText().isEmpty());
+        assertEquals(securityEnabled(), !node.get("sessionToken").isNull());
 
         JsonNode res = node.get("response");
 
         assertTrue(res.isObject());
 
-        assertFalse(res.get("id").asText().isEmpty());
+        assertFalse(res.get("id").isNull());
         assertTrue(res.get("finished").asBoolean());
-        assertTrue(res.get("error").asText().isEmpty());
+        assertTrue(res.get("error").isNull());
 
         return res.get("result");
     }
@@ -359,7 +359,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
     public void testGet() throws Exception {
         jcache().put("getKey", "getVal");
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_GET.key(), "key", "getKey"));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_GET.key(), "key", "getKey"));
 
         info("Get command result: " + ret);
 
@@ -376,7 +376,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         jcache().put("mapKey1", map1);
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_GET.key(), "key", "mapKey1"));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_GET.key(), "key", "mapKey1"));
 
         info("Get command result: " + ret);
 
@@ -390,7 +390,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         jcache().put("mapKey2", map2);
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_GET.key(), "key", "mapKey2"));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_GET.key(), "key", "mapKey2"));
 
         info("Get command result: " + ret);
 
@@ -407,7 +407,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         jcache().put("simplePersonKey", p);
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_GET.key(), "key", "simplePersonKey"));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_GET.key(), "key", "simplePersonKey"));
 
         info("Get command result: " + ret);
 
@@ -434,7 +434,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         jcache().put("utilDateKey", utilDate);
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_GET.key(), "key", "utilDateKey"));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_GET.key(), "key", "utilDateKey"));
 
         info("Get command result: " + ret);
 
@@ -444,7 +444,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         jcache().put("sqlDateKey", sqlDate);
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_GET.key(), "key", "sqlDateKey"));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_GET.key(), "key", "sqlDateKey"));
 
         info("Get SQL result: " + ret);
 
@@ -452,7 +452,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         jcache().put("timestampKey", new java.sql.Timestamp(utilDate.getTime()));
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_GET.key(), "key", "timestampKey"));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_GET.key(), "key", "timestampKey"));
 
         info("Get timestamp: " + ret);
 
@@ -467,7 +467,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         jcache().put("uuidKey", uuid);
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_GET.key(), "key", "uuidKey"));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_GET.key(), "key", "uuidKey"));
 
         info("Get command result: " + ret);
 
@@ -477,7 +477,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         jcache().put("igniteUuidKey", igniteUuid);
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_GET.key(), "key", "igniteUuidKey"));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_GET.key(), "key", "igniteUuidKey"));
 
         info("Get command result: " + ret);
 
@@ -492,7 +492,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         jcache().put("tupleKey", t);
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_GET.key(), "key", "tupleKey"));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_GET.key(), "key", "tupleKey"));
 
         info("Get command result: " + ret);
 
@@ -510,7 +510,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         jcache().put("getKey", "getVal");
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_SIZE.key()));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_SIZE.key()));
 
         info("Size command result: " + ret);
 
@@ -521,7 +521,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
      * @throws Exception If failed.
      */
     public void testIgniteName() throws Exception {
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.NAME.key()));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.NAME.key()));
 
         info("Name command result: " + ret);
 
@@ -532,13 +532,13 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
      * @throws Exception If failed.
      */
     public void testGetOrCreateCache() throws Exception {
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.GET_OR_CREATE_CACHE.key(), "cacheName", "testCache"));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.GET_OR_CREATE_CACHE.key(), "cacheName", "testCache"));
 
         info("Name command result: " + ret);
 
         grid(0).cache("testCache").put("1", "1");
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.DESTROY_CACHE.key(), "cacheName", "testCache"));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.DESTROY_CACHE.key(), "cacheName", "testCache"));
 
         assertTrue(jsonResponse(ret).isNull());
 
@@ -711,7 +711,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
      * @throws Exception If failed.
      */
     public void testPut() throws Exception {
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_PUT.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_PUT.key(),
             "key", "putKey", "val", "putVal"));
 
         info("Put command result: " + ret);
@@ -725,7 +725,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
      * @throws Exception If failed.
      */
     public void testPutWithExpiration() throws Exception {
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_PUT.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_PUT.key(),
             "key", "putKey", "val", "putVal", "exp", "2000"));
 
         assertCacheOperation(ret, true);
@@ -743,7 +743,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
     public void testAdd() throws Exception {
         jcache().put("addKey1", "addVal1");
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_ADD.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_ADD.key(),
             "key", "addKey2", "val", "addVal2"));
 
         assertCacheOperation(ret, true);
@@ -756,7 +756,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
      * @throws Exception If failed.
      */
     public void testAddWithExpiration() throws Exception {
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_ADD.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_ADD.key(),
             "key", "addKey", "val", "addVal", "exp", "2000"));
 
         assertCacheOperation(ret, true);
@@ -797,7 +797,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         assertEquals("rmvVal", jcache().localPeek("rmvKey"));
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_REMOVE.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_REMOVE.key(),
             "key", "rmvKey"));
 
         info("Remove command result: " + ret);
@@ -821,7 +821,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
         assertEquals("rmvVal3", jcache().localPeek("rmvKey3"));
         assertEquals("rmvVal4", jcache().localPeek("rmvKey4"));
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_REMOVE_ALL.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_REMOVE_ALL.key(),
             "k1", "rmvKey1", "k2", "rmvKey2"));
 
         info("Remove all command result: " + ret);
@@ -833,7 +833,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         assertCacheBulkOperation(ret, true);
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_REMOVE_ALL.key()));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_REMOVE_ALL.key()));
 
         info("Remove all command result: " + ret);
 
@@ -854,7 +854,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         assertEquals("casOldVal", jcache().localPeek("casKey"));
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_CAS.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_CAS.key(),
             "key", "casKey", "val2", "casOldVal", "val1", "casNewVal"));
 
         info("CAS command result: " + ret);
@@ -874,7 +874,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         assertEquals("repOldVal", jcache().localPeek("repKey"));
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_REPLACE.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_REPLACE.key(),
             "key", "repKey", "val", "repVal"));
 
         info("Replace command result: " + ret);
@@ -892,7 +892,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         assertEquals("replaceVal", jcache().get("replaceKey"));
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_REPLACE.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_REPLACE.key(),
             "key", "replaceKey", "val", "replaceValNew", "exp", "2000"));
 
         assertCacheOperation(ret, true);
@@ -911,7 +911,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
     public void testAppend() throws Exception {
         jcache().put("appendKey", "appendVal");
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_APPEND.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_APPEND.key(),
             "key", "appendKey", "val", "_suffix"));
 
         assertCacheOperation(ret, true);
@@ -925,7 +925,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
     public void testPrepend() throws Exception {
         jcache().put("prependKey", "prependVal");
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_PREPEND.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_PREPEND.key(),
             "key", "prependKey", "val", "prefix_"));
 
         assertCacheOperation(ret, true);
@@ -937,7 +937,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
      * @throws Exception If failed.
      */
     public void testIncrement() throws Exception {
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.ATOMIC_INCREMENT.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.ATOMIC_INCREMENT.key(),
             "key", "incrKey", "init", "2", "delta", "3"));
 
         JsonNode res = jsonResponse(ret);
@@ -945,7 +945,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
         assertEquals(5, res.asInt());
         assertEquals(5, grid(0).atomicLong("incrKey", 0, true).get());
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.ATOMIC_INCREMENT.key(), "key", "incrKey", "delta", "10"));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.ATOMIC_INCREMENT.key(), "key", "incrKey", "delta", "10"));
 
         res = jsonResponse(ret);
 
@@ -957,7 +957,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
      * @throws Exception If failed.
      */
     public void testDecrement() throws Exception {
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.ATOMIC_DECREMENT.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.ATOMIC_DECREMENT.key(),
             "key", "decrKey", "init", "15", "delta", "10"));
 
         JsonNode res = jsonResponse(ret);
@@ -965,7 +965,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
         assertEquals(5, res.asInt());
         assertEquals(5, grid(0).atomicLong("decrKey", 0, true).get());
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.ATOMIC_DECREMENT.key(),
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.ATOMIC_DECREMENT.key(),
             "key", "decrKey", "delta", "3"));
 
         res = jsonResponse(ret);
@@ -982,7 +982,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         assertEquals("casOldVal", jcache().localPeek("casKey"));
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_CAS.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_CAS.key(),
             "key", "casKey", "val2", "casOldVal"));
 
         info("CAR command result: " + ret);
@@ -998,7 +998,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
     public void testPutIfAbsent() throws Exception {
         assertNull(jcache().localPeek("casKey"));
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_CAS.key(),
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_CAS.key(),
             "key", "casKey", "val1", "casNewVal"));
 
         info("PutIfAbsent command result: " + ret);
@@ -1016,7 +1016,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         assertEquals("casVal", jcache().localPeek("casKey"));
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_CAS.key(), "key", "casKey"));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_CAS.key(), "key", "casKey"));
 
         info("CAS Remove command result: " + ret);
 
@@ -1029,7 +1029,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
      * @throws Exception If failed.
      */
     public void testMetrics() throws Exception {
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_METRICS.key()));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_METRICS.key()));
 
         info("Cache metrics command result: " + ret);
 
@@ -1127,13 +1127,13 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         Collection<GridCacheSqlMetadata> metas = cache.context().queries().sqlMetadata();
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_METADATA.key()));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_METADATA.key()));
 
         info("Cache metadata: " + ret);
 
         testMetadata(metas, ret);
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_METADATA.key(), "cacheName", "person"));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_METADATA.key(), "cacheName", "person"));
 
         info("Cache metadata with cacheName parameter: " + ret);
 
@@ -1153,13 +1153,13 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         Collection<GridCacheSqlMetadata> metas = c.context().queries().sqlMetadata();
 
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_METADATA.key()));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_METADATA.key()));
 
         info("Cache metadata: " + ret);
 
         testMetadata(metas, ret);
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CACHE_METADATA.key(), "cacheName", "person"));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CACHE_METADATA.key(), "cacheName", "person"));
 
         info("Cache metadata with cacheName parameter: " + ret);
 
@@ -1170,7 +1170,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
      * @throws Exception If failed.
      */
     public void testTopology() throws Exception {
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.TOPOLOGY.key(), "attr", "false", "mtr", "false"));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.TOPOLOGY.key(), "attr", "false", "mtr", "false"));
 
         info("Topology command result: " + ret);
 
@@ -1214,7 +1214,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
      * @throws Exception If failed.
      */
     public void testNode() throws Exception {
-        String ret = content(F.asMap("cmd",GridRestCommand.NODE.key(), "attr", "true", "mtr", "true", "id",
+        String ret = content(F.asMap("cmd", GridRestCommand.NODE.key(), "attr", "true", "mtr", "true", "id",
             grid(0).localNode().id().toString()));
 
         info("Topology command result: " + ret);
@@ -1224,7 +1224,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
         assertTrue(res.get("attributes").isObject());
         assertTrue(res.get("metrics").isObject());
 
-        ret = content(F.asMap("cmd",GridRestCommand.NODE.key(), "attr", "false", "mtr", "false", "ip", LOC_HOST));
+        ret = content(F.asMap("cmd", GridRestCommand.NODE.key(), "attr", "false", "mtr", "false", "ip", LOC_HOST));
 
         info("Topology command result: " + ret);
 
@@ -1233,7 +1233,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
         assertTrue(res.get("attributes").isNull());
         assertTrue(res.get("metrics").isNull());
 
-        ret = content(F.asMap("cmd",GridRestCommand.NODE.key(), "attr", "false", "mtr", "false", "ip", LOC_HOST, "id",
+        ret = content(F.asMap("cmd", GridRestCommand.NODE.key(), "attr", "false", "mtr", "false", "ip", LOC_HOST, "id",
             UUID.randomUUID().toString()));
 
         info("Topology command result: " + ret);
@@ -1251,14 +1251,14 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
      * @throws Exception If failed.
      */
     public void testExe() throws Exception {
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.EXE.key()));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.EXE.key()));
 
         info("Exe command result: " + ret);
 
         assertResponseContainsError(ret);
 
         // Attempt to execute unknown task (UNKNOWN_TASK) will result in exception on server.
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.EXE.key(), "name", "UNKNOWN_TASK"));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.EXE.key(), "name", "UNKNOWN_TASK"));
 
         info("Exe command result: " + ret);
 
@@ -1267,7 +1267,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
         grid(0).compute().localDeployTask(TestTask1.class, TestTask1.class.getClassLoader());
         grid(0).compute().localDeployTask(TestTask2.class, TestTask2.class.getClassLoader());
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.EXE.key(), "name", TestTask1.class.getName()));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.EXE.key(), "name", TestTask1.class.getName()));
 
         info("Exe command result: " + ret);
 
@@ -1275,7 +1275,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         assertTrue(res.isNull());
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.EXE.key(), "name", TestTask2.class.getName()));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.EXE.key(), "name", TestTask2.class.getName()));
 
         info("Exe command result: " + ret);
 
@@ -1283,7 +1283,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         assertEquals(TestTask2.RES, res.asText());
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.RESULT.key()));
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.RESULT.key()));
 
         info("Exe command result: " + ret);
 
@@ -1602,14 +1602,14 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
         // Spring XML to start cache via Visor task.
         final String START_CACHE =
             "<beans xmlns=\"http://www.springframework.org/schema/beans\"\n" +
-                    "    xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
-                    "    xsi:schemaLocation=\"http://www.springframework.org/schema/beans\n" +
-                    "        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd\">\n" +
-                    "    <bean id=\"cacheConfiguration\" class=\"org.apache.ignite.configuration.CacheConfiguration\">\n" +
-                    "        <property name=\"cacheMode\" value=\"PARTITIONED\"/>\n" +
-                    "        <property name=\"name\" value=\"c\"/>\n" +
-                    "   </bean>\n" +
-                    "</beans>";
+                "    xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
+                "    xsi:schemaLocation=\"http://www.springframework.org/schema/beans\n" +
+                "        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd\">\n" +
+                "    <bean id=\"cacheConfiguration\" class=\"org.apache.ignite.configuration.CacheConfiguration\">\n" +
+                "        <property name=\"cacheMode\" value=\"PARTITIONED\"/>\n" +
+                "        <property name=\"name\" value=\"c\"/>\n" +
+                "   </bean>\n" +
+                "</beans>";
 
         ret = content(new VisorGatewayArgument(VisorCacheStartTask.class)
             .argument(VisorCacheStartTaskArg.class, false, "person2",
@@ -1653,7 +1653,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
      * @throws Exception If failed.
      */
     public void testVersion() throws Exception {
-        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.VERSION.key()));
+        String ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.VERSION.key()));
 
         JsonNode res = jsonResponse(ret);
 
@@ -1759,7 +1759,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         assertFalse(jsonResponse(ret).get("queryId").isNull());
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.FETCH_SQL_QUERY.key(),
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.FETCH_SQL_QUERY.key(),
             "pageSize", "1", "qryId", qryId.asText()));
 
         JsonNode res = jsonResponse(ret);
@@ -1769,7 +1769,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
         assertEquals(qryId0, qryId);
         assertFalse(res.get("last").asBoolean());
 
-        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.FETCH_SQL_QUERY.key(),
+        ret = content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.FETCH_SQL_QUERY.key(),
             "pageSize", "1", "qryId", qryId.asText()));
 
         res = jsonResponse(ret);
@@ -1911,7 +1911,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
 
         String qryId = res.get("queryId").asText();
 
-        content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd",GridRestCommand.CLOSE_SQL_QUERY.key(), "cacheName", "person", "qryId", qryId));
+        content(F.asMap("cacheName", DEFAULT_CACHE_NAME, "cmd", GridRestCommand.CLOSE_SQL_QUERY.key(), "cacheName", "person", "qryId", qryId));
 
         assertFalse(queryCursorFound());
     }
@@ -2016,7 +2016,6 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
         assertEquals(2, personCache.query(qry).getAll().size());
     }
 
-
     /**
      * Organization class.
      */
@@ -2216,7 +2215,7 @@ public abstract class JettyRestProcessorAbstractSelfTest extends AbstractRestPro
          * @return This helper for chaining method calls.
          */
         public VisorGatewayArgument arguments(Object... vals) {
-            for (Object val: vals)
+            for (Object val : vals)
                 put("p" + idx++, String.valueOf(val));
 
             return this;

http://git-wip-us.apache.org/repos/asf/ignite/blob/6ccfc0b2/modules/rest-http/src/main/java/org/apache/ignite/internal/processors/rest/protocols/http/jetty/GridJettyObjectMapper.java
----------------------------------------------------------------------
diff --git a/modules/rest-http/src/main/java/org/apache/ignite/internal/processors/rest/protocols/http/jetty/GridJettyObjectMapper.java b/modules/rest-http/src/main/java/org/apache/ignite/internal/processors/rest/protocols/http/jetty/GridJettyObjectMapper.java
index 44dd09c..5a94315 100644
--- a/modules/rest-http/src/main/java/org/apache/ignite/internal/processors/rest/protocols/http/jetty/GridJettyObjectMapper.java
+++ b/modules/rest-http/src/main/java/org/apache/ignite/internal/processors/rest/protocols/http/jetty/GridJettyObjectMapper.java
@@ -77,14 +77,6 @@ public class GridJettyObjectMapper extends ObjectMapper {
         }
     };
 
-    /** Custom {@code null} string serializer. */
-    private static final JsonSerializer<Object> NULL_STRING_VALUE_SERIALIZER = new JsonSerializer<Object>() {
-        /** {@inheritDoc} */
-        @Override public void serialize(Object val, JsonGenerator gen, SerializerProvider ser) throws IOException {
-            gen.writeString("");
-        }
-    };
-
     /**
      * Custom serializers provider that provide special serializers for {@code null} values.
      */
@@ -108,7 +100,7 @@ public class GridJettyObjectMapper extends ObjectMapper {
         }
 
         /** {@inheritDoc} */
-        public DefaultSerializerProvider createInstance(SerializationConfig cfg, SerializerFactory jsf) {
+        @Override public DefaultSerializerProvider createInstance(SerializationConfig cfg, SerializerFactory jsf) {
             return new CustomSerializerProvider(this, cfg, jsf);
         }
 
@@ -120,9 +112,6 @@ public class GridJettyObjectMapper extends ObjectMapper {
 
         /** {@inheritDoc} */
         @Override public JsonSerializer<Object> findNullValueSerializer(BeanProperty prop) throws JsonMappingException {
-            if (prop.getType().getRawClass() == String.class)
-                return NULL_STRING_VALUE_SERIALIZER;
-
             return NULL_VALUE_SERIALIZER;
         }
     }