diff --git a/lib/webfuse_provider/impl/util/json_util.c b/lib/webfuse_provider/impl/util/json_util.c
deleted file mode 100644
index 49ab8e7..0000000
--- a/lib/webfuse_provider/impl/util/json_util.c
+++ /dev/null
@@ -1,27 +0,0 @@
-#include "webfuse_provider/impl/util/json_util.h"
-
-int wfp_impl_json_get_integer(json_t const * object, char const * key, int default_value)
-{
-	int result = default_value;
-
-	json_t * holder = json_object_get(object, key);
-	if (json_is_integer(holder))
-	{
-		result = json_integer_value(holder);
-	}
-
-	return result;
-}
-
-wfp_status 
-wfp_impl_jsonrpc_get_status(
-	json_t const * error)
-{
-	wfp_status status = WFP_GOOD;
-	if (NULL != error)
-	{
-		status = wfp_impl_json_get_integer(error, "code", WFP_BAD_FORMAT);
-	}
-
-	return status;
-}
diff --git a/lib/webfuse_provider/impl/util/json_util.h b/lib/webfuse_provider/impl/util/json_util.h
deleted file mode 100644
index f75e28e..0000000
--- a/lib/webfuse_provider/impl/util/json_util.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef WFP_JSON_UTIL_H
-#define WFP_JSON_UTIL_H
-
-#include <jansson.h>
-#include "webfuse_provider/status.h"
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-extern int
-wfp_impl_json_get_integer(
-    json_t const * object,
-    char const * key,
-    int default_value);
-
-extern wfp_status 
-wfp_impl_jsonrpc_get_status(
-    json_t const * error);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/meson.build b/meson.build
index 7b9da0d..5e994fc 100644
--- a/meson.build
+++ b/meson.build
@@ -24,7 +24,6 @@ webfuse_provider_static = static_library('webfuse_provider',
     'lib/webfuse_provider/impl/util/slist.c',
 	'lib/webfuse_provider/impl/util/base64.c',
 	'lib/webfuse_provider/impl/util/lws_log.c',
-	'lib/webfuse_provider/impl/util/json_util.c',
 	'lib/webfuse_provider/impl/util/url.c',
     'lib/webfuse_provider/impl/timer/manager.c',
     'lib/webfuse_provider/impl/timer/timepoint.c',
@@ -127,7 +126,6 @@ alltests = executable('alltests',
 	'test/webfuse_provider/jsonrpc/test_response_parser.cc',
 	'test/webfuse_provider/timer/test_timepoint.cc',
 	'test/webfuse_provider/timer/test_timer.cc',
-	'test/webfuse_provider/util/test_util.cc',
 	'test/webfuse_provider/util/test_container_of.cc',
 	'test/webfuse_provider/util/test_slist.cc',
 	'test/webfuse_provider/util/test_base64.cc',
diff --git a/test/webfuse_provider/json/test_json_parser.cc b/test/webfuse_provider/json/test_json_parser.cc
index b0001fb..4f6f493 100644
--- a/test/webfuse_provider/json/test_json_parser.cc
+++ b/test/webfuse_provider/json/test_json_parser.cc
@@ -130,4 +130,10 @@ TEST(json_parser, parse_fail_invalid_json)
         ASSERT_EQ(nullptr, doc);
     }
 
+    {
+        char text[] = "[\"method\",[], {}, \"params\":,42]";
+        wfp_json_doc * doc = parse_json(text);
+        ASSERT_EQ(nullptr, doc);
+    }
+
 }
\ No newline at end of file
diff --git a/test/webfuse_provider/util/test_util.cc b/test/webfuse_provider/util/test_util.cc
deleted file mode 100644
index 7188893..0000000
--- a/test/webfuse_provider/util/test_util.cc
+++ /dev/null
@@ -1,72 +0,0 @@
-#include <gtest/gtest.h>
-#include "webfuse_provider/impl/util/json_util.h"
-
-TEST(jsonrpc_util, get_int)
-{
-    json_t * object = json_object();
-    json_object_set_new(object, "key", json_integer(23));
-    int value = wfp_impl_json_get_integer(object, "key", 42);
-    ASSERT_EQ(23, value);
-
-    json_decref(object);
-}
-
-TEST(jsonrpc_util, failed_to_get_null_object)
-{
-    int value = wfp_impl_json_get_integer(nullptr, "key", 42);
-    
-    ASSERT_EQ(42, value);
-}
-
-TEST(jsonrpc_util, failed_to_get_not_object)
-{
-    json_t * object = json_array();
-    int value = wfp_impl_json_get_integer(nullptr, "key", 42);    
-    ASSERT_EQ(42, value);
-
-    json_decref(object);
-}
-
-TEST(jsonrpc_util, failed_to_get_invalid_key)
-{
-    json_t * object = json_object();
-    int value = wfp_impl_json_get_integer(object, "key", 42);
-    ASSERT_EQ(42, value);
-
-    json_decref(object);
-}
-
-TEST(jsonrpc_util, failed_to_get_invalid_value_type)
-{
-    json_t * object = json_object();
-    json_object_set_new(object, "key", json_string("42"));
-    int value = wfp_impl_json_get_integer(object, "key", 42);
-    ASSERT_EQ(42, value);
-
-    json_decref(object);
-}
-
-TEST(jsonrpc_util, get_status_good_if_no_error)
-{
-    json_t * error = nullptr;
-    wfp_status status = wfp_impl_jsonrpc_get_status(error);
-    ASSERT_EQ(WFP_GOOD, status);
-}
-
-TEST(jsonrpc_util, get_status)
-{
-    json_t * error = json_object();
-    json_object_set_new(error, "code", json_integer(WFP_BAD_BUSY));
-    wfp_status status = wfp_impl_jsonrpc_get_status(error);
-    ASSERT_EQ(WFP_BAD_BUSY, status);
-    json_decref(error);
-}
-
-TEST(jsonrpc_util, get_status_bad_format)
-{
-    json_t * error = json_array();
-    json_array_append_new(error, json_integer(WFP_BAD_BUSY));
-    wfp_status status = wfp_impl_jsonrpc_get_status(error);
-    ASSERT_EQ(WFP_BAD_FORMAT, status);
-    json_decref(error);
-}