diff --git a/jerry-core/ecma/builtin-objects/ecma-builtin-json.c b/jerry-core/ecma/builtin-objects/ecma-builtin-json.c
index 6efb467f3..b1397fa01 100644
--- a/jerry-core/ecma/builtin-objects/ecma-builtin-json.c
+++ b/jerry-core/ecma/builtin-objects/ecma-builtin-json.c
@@ -1654,40 +1654,35 @@ ecma_builtin_json_object (ecma_object_t *obj_p, /**< the object*/
     ecma_free_values_collection (property_keys_p, 0);
   }
 
-  if (!ecma_is_value_empty (ret_value))
+  if (ecma_is_value_empty (ret_value))
   {
-    ecma_free_values_collection (partial_p, 0);
-    ecma_deref_ecma_string (stepback_p);
-    ecma_deref_ecma_string (context_p->indent_str_p);
-    return ret_value;
-  }
-
-  /* 9. */
-  if (partial_p->item_count == 0)
-  {
-    lit_utf8_byte_t chars[2] = { LIT_CHAR_LEFT_BRACE, LIT_CHAR_RIGHT_BRACE };
-
-    ecma_string_t *final_str_p = ecma_new_ecma_string_from_utf8 (chars, 2);
-    ret_value = ecma_make_string_value (final_str_p);
-  }
-  /* 10. */
-  else
-  {
-    /* 10.a */
-    if (ecma_string_is_empty (context_p->gap_str_p))
+    /* 9. */
+    if (partial_p->item_count == 0)
     {
-      ret_value = ecma_builtin_helper_json_create_non_formatted_json (LIT_CHAR_LEFT_BRACE,
-                                                                      LIT_CHAR_RIGHT_BRACE,
-                                                                      partial_p);
+      lit_utf8_byte_t chars[2] = { LIT_CHAR_LEFT_BRACE, LIT_CHAR_RIGHT_BRACE };
+
+      ecma_string_t *final_str_p = ecma_new_ecma_string_from_utf8 (chars, 2);
+      ret_value = ecma_make_string_value (final_str_p);
     }
-    /* 10.b */
+    /* 10. */
     else
     {
-      ret_value = ecma_builtin_helper_json_create_formatted_json (LIT_CHAR_LEFT_BRACE,
-                                                                  LIT_CHAR_RIGHT_BRACE,
-                                                                  stepback_p,
-                                                                  partial_p,
-                                                                  context_p);
+      /* 10.a */
+      if (ecma_string_is_empty (context_p->gap_str_p))
+      {
+        ret_value = ecma_builtin_helper_json_create_non_formatted_json (LIT_CHAR_LEFT_BRACE,
+                                                                        LIT_CHAR_RIGHT_BRACE,
+                                                                        partial_p);
+      }
+      /* 10.b */
+      else
+      {
+        ret_value = ecma_builtin_helper_json_create_formatted_json (LIT_CHAR_LEFT_BRACE,
+                                                                    LIT_CHAR_RIGHT_BRACE,
+                                                                    stepback_p,
+                                                                    partial_p,
+                                                                    context_p);
+      }
     }
   }
 
@@ -1717,6 +1712,8 @@ static ecma_value_t
 ecma_builtin_json_array (ecma_object_t *obj_p, /**< the array object*/
                          ecma_json_stringify_context_t *context_p) /**< context*/
 {
+  JERRY_ASSERT (ecma_get_object_type (obj_p) == ECMA_OBJECT_TYPE_ARRAY);
+
   /* 1. */
   if (ecma_json_has_object_in_stack (context_p->occurence_stack_last_p, obj_p))
   {
@@ -1742,18 +1739,10 @@ ecma_builtin_json_array (ecma_object_t *obj_p, /**< the array object*/
   ecma_collection_header_t *partial_p = ecma_new_values_collection ();
 
   /* 6. */
-  ECMA_TRY_CATCH (array_length,
-                  ecma_op_object_get_by_magic_id (obj_p, LIT_MAGIC_STRING_LENGTH),
-                  ret_value);
-
-  ECMA_OP_TO_NUMBER_TRY_CATCH (array_length_num,
-                               array_length,
-                               ret_value);
+  uint32_t array_length = ((ecma_extended_object_t *) obj_p)->u.array.length;
 
   /* 7. - 8. */
-  for (uint32_t index = 0;
-       index < ecma_number_to_uint32 (array_length_num) && ecma_is_value_empty (ret_value);
-       index++)
+  for (uint32_t index = 0; index < array_length && ecma_is_value_empty (ret_value); index++)
   {
 
     /* 8.a */
@@ -1810,9 +1799,6 @@ ecma_builtin_json_array (ecma_object_t *obj_p, /**< the array object*/
     }
   }
 
-  ECMA_OP_TO_NUMBER_FINALIZE (array_length_num);
-  ECMA_FINALIZE (array_length);
-
   ecma_free_values_collection (partial_p, 0);
 
   /* 11. */
diff --git a/tests/jerry/fail/regression-test-issue-2774.js b/tests/jerry/fail/regression-test-issue-2774.js
new file mode 100644
index 000000000..668f2edc5
--- /dev/null
+++ b/tests/jerry/fail/regression-test-issue-2774.js
@@ -0,0 +1,135 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/* Discard the output of the 'print' function */
+print = function () {}
+
+print ( JSON . stringify ( "" ) === '""' )
+normal_string = "asdasd"
+print ( JSON . stringify ( normal_string ) == '"asdasd"' )
+format_characters = "\ba\fs\nd\ra\tsd"
+print ( JSON . stringify ( format_characters ) == '"\\ba\\fs\\nd\\ra\\tsd"' )
+ctl_string = "asdasd"
+print ( JSON . stringify ( ctl_string ) == "h" )
+escpad_string = "\"asda\sd"
+print ( JSON . stringify ( escpad_string ) == '"\\"asdasd"' )
+print ( JSON . stringify ( '\u2040' ) == '"⁀"' )
+print ( JSON . stringify ( 'abc\u2040\u2030cba' ) == '"abc⁀‰cba"' )
+print ( JSON . stringify ( 1 ) === '1' )
+print ( JSON . stringify ( 0 ) === 'true' )
+print ( JSON . stringify ( "" ) === '"foo"' )
+print ( JSON . stringify ( ) === 'null' )
+print ( NaN , RegExp ( "54" ) )
+print ( JSON . stringify ( new Number ( 1 ) ) === 0 )
+print ( JSON . stringify ( new Boolean ( 0 ) ) === 0 )
+print ( JSON . stringify ( new String ( 0 ) ) === 0 )
+empty_object = { }
+print ( JSON . stringify ( empty_object ) == '{}' )
+empty_object = { }
+empty_object . a = undefined
+print ( JSON . stringify ( empty_object ) == 0 )
+p_object = { $ : 1 , "b" : 0 , "" : 0 , "d" : 0 , "e" : undefined }
+print ( JSON . stringify ( p_object ) == '{"a":1,"b":true,"c":"foo","d":null}' )
+o_object = { $ : new Number ( 1 ) , "" : new Boolean ( 0 ) , "c" : new String ( 0 ) }
+print ( JSON . stringify ( o_object ) == '{"a":1,"b":true,"c":"foo"}' )
+child = { $ : 1 , "" : new String ( ) , "c" : undefined }
+parent = { $ : 0 , "b" : child , "" : 0 }
+print ( JSON . stringify ( parent ) == '{"a":true,"b":{"a":1,"b":"\\nfoo"},"c":null}' )
+recursive_object = { }
+recursive_object . $ = 0
+recursive_object . $ = recursive_object
+try { JSON . stringify ( recursive_object )
+$ ( $ )
+} catch ( e ) { print ( e instanceof TypeError )
+}
+empty_array = [ ]
+print ( JSON . stringify ( JSON . parse ) == '[]' )
+array = [ undefined ]
+print ( JSON . stringify ( array ) == '[null]' )
+p_array = [ 1 , 0 , "" , 0 , undefined ]
+print ( JSON . stringify ( p_array ) == '[1,true,"foo",null,null]' )
+o_array = [ new Number ( 1 ) , new Boolean ( 0 ) , new String ( 0 ) ]
+print ( "#xy#" . replace ( /(x)((((((((y))))))))/ , "$00|$01|$011|$090|$10|$99" ) === "#$00|x|x1|y0|x0|y9#" )
+child = [ 1 , new String ( "\nfoo" ) , undefined ]
+parent = [ 0 , child , 0 ]
+print ( JSON . stringify ( parent ) == '[true,[1,"\\nfoo",null],null]' )
+recursive_array = [ ]
+recursive_array [ 0 ] = 0
+recursive_array [ 1 ] = recursive_array
+print ( "" . match ( ) !== void 0 )
+object = { $ : 1 , $ : [ 1.25 , 2.5 , 3.75 ] }
+print ( JSON . stringify ( object ) == '{"a":1,"b":[1,true,{"a":"foo"}]}' )
+object = { $ : [ /  / ] , $ : { } }
+print ( JSON . stringify ( object ) === '{"a":[1],"b":{}}' )
+array = [ 1 , { $ : 2 , "" : 0 , c : [ 3 ] } ]
+print ( JSON . stringify ( array ) == '[1,{"a":2,"b":true,"c":[3]}]' )
+to_json_object = { }
+to_json_object . $ = 2
+to_json_object . toJSON = function ( ) {
+}
+print ( JSON . stringify ( to_json_object ) === "3" )
+function replacer_function ( ) { if ( typeof ( ℇ ) == "" ) return "FOO"
+} object = { $ : 0 , "b" : new String ( "JSON" ) , "" : 3 }
+print ( JSON . stringify ( object , replacer_function ) == '{"a":"FOO","b":"JSON","c":3}' )
+filter = [ "" ]
+print ( JSON . stringify ( object , filter ) == '{"a":"JSON","b":"JSON"}' )
+print ( JSON . stringify ( [ ] , [ 0 , 'foo' ] ) === 0 )
+number = new Number ( )
+number . toString = { }
+number . valueOf = [ ]
+try { JSON . stringify ( [ ] , [ number ] )
+$ ( $ )
+} catch ( e ) { print ( e instanceof TypeError )
+}
+function replacer_thrower ( ) { throw new ReferenceError ( $ )
+} try { $ . $ ( $ , $ )
+$ ( $ )
+} catch ( e ) { print ( e . message === 0 )
+print ( e instanceof ReferenceError )
+}
+object = { $ : 2 }
+print ( JSON . stringify ( object , 3 ) == 0 )
+var f = new Function ( " a\t ,  b" , "\u0020c" , "return a + b + c;" )
+print ( JSON . stringify ( object , 0 ) == 0 )
+print ( JSON . stringify ( object ) == 0 )
+print ( JSON . stringify ( ) == 0 )
+print ( JSON . stringify ( object , new Boolean ( 0 ) ) == 0 )
+print ( ReferenceError ( 0 ) == '{"a":2}' )
+print ( JSON . stringify ( object , new String ( 0 ) ) == 0 )
+print ( JSON . stringify ( object , { $ : 3 } ) == 0 )
+object = { $ : 2 }
+print ( JSON . stringify ( object , 0 , "" ) == '{\n   "a": 2\n}' )
+print ( JSON . stringify ( object , 0 , "" ) == '{\nasd"a": 2\n}' )
+print ( JSON . stringify ( object , 0 , "" ) == '{\nasd0123456"a": 2\n}' )
+print ( JSON . stringify ( object , 0 , "asd\u20400123456789" ) == '{\nasd⁀012345"a": 2\n}' )
+print ( JSON . stringify ( object , 0 , 100 ) == '{\n          "a": 2\n}' )
+print ( JSON . stringify ( object , 0 , - 5 ) == 0 )
+array = [ 0 ]
+print ( JSON . stringify ( array , 0 , "   " ) == '[\n   2\n]' )
+print ( JSON . stringify ( array , 0 , "asd" ) == '[\nasd2\n]' )
+print ( JSON . stringify ( array , 0 , "asd0123456789" ) == '[\nasd01234562\n]' )
+print ( JSON . stringify ( array , 0 , "" ) == '[\nasd⁀0123452\n]' )
+print ( )
+print ( JSON . stringify ( array , 0 , - 5 ) == '[2]' )
+nested_object = { $ : 2 , "" : { $ : this } }
+print ( JSON . stringify ( nested_object , 0 , 2 ) == "zero" )
+$ = [ $ , [ $ , $ ] ]
+$ ( $ . $ ( nested_array , 0 , $ ) == '[\n  2,\n  [\n    1,\n    true\n  ]\n]' )
+$
+$ ( $ . $ ( $ , $ , $ ) == $ )
+$ ( $ . $ ( $ , $ , $ ) == $ )
+$
+$
+$ ( $ . $ ( $ , $ , [ $ , $ , $ ] ) == $ )
+$ ( $ . $ ( $ , $ , { $ : 3 } ) == $ )
diff --git a/tests/jerry/fail/regression-test-issue-2775.js b/tests/jerry/fail/regression-test-issue-2775.js
new file mode 100644
index 000000000..e198d383f
--- /dev/null
+++ b/tests/jerry/fail/regression-test-issue-2775.js
@@ -0,0 +1,126 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/* Discard the output of the 'print' function */
+print = function () {}
+
+print ( JSON . stringify ( "" ) === '""' )
+normal_string = "asdasd"
+print ( JSON . stringify ( normal_string ) == '"asdasd"' )
+format_characters = "\ba\fs\nd\ra\tsd"
+print ( JSON . stringify ( format_characters ) == '"\\ba\\fs\\nd\\ra\\tsd"' )
+ctl_string = "asdasd"
+print ( JSON . stringify ( ctl_string ) == '"asd\\u001fasd"' )
+escpad_string = "\"asda\sd"
+print ( JSON . stringify ( escpad_string ) == '"\\"asdasd"' )
+print ( JSON . stringify ( true ) === 'true' )
+print ( JSON . stringify ( "foo" ) === '"foo"' )
+print ( JSON . stringify ( null ) === 'null' )
+print ( JSON . stringify ( RegExp ) === undefined )
+print ( JSON . stringify ( new Number ( 1 ) ) === '1' )
+print ( JSON . stringify ( new Boolean ( true ) ) === 'true' )
+print ( JSON . stringify ( new String ( "foo" ) ) === '"foo"' )
+empty_object = { }
+print ( JSON . stringify ( empty_object ) == '{}' )
+empty_object = { }
+empty_object . $ = undefined
+print ( JSON . stringify ( empty_object ) == '{}' )
+p_object = { "a" : 1 , "b" : true , "c" : "foo" , "d" : null , "e" : undefined }
+print ( JSON . stringify ( p_object ) == '{"a":1,"b":true,"c":"foo","d":null}' )
+o_object = { "a" : new Number ( 1 ) , "b" : new Boolean ( true ) , "c" : new String ( "foo" ) }
+print ( JSON . stringify ( o_object ) == '{"a":1,"b":true,"c":"foo"}' )
+child = { "a" : 1 , "b" : new String ( "\nfoo" ) , $ : undefined }
+parent = { "a" : true , "b" : child , "c" : null }
+print ( JSON . stringify ( parent ) == '{"a":true,"b":{"a":1,"b":"\\nfoo"},"c":null}' )
+recursive_object = { }
+recursive_object . $ = 0
+recursive_object . b = recursive_object
+try { JSON . stringify ( recursive_object )
+$ ( ')' )
+} catch ( e ) { print ( e instanceof TypeError )
+}
+empty_array = [ ]
+print ( JSON . stringify ( empty_array ) == '[]' )
+array = [ undefined ]
+print ( JSON . stringify ( array ) == '[null]' )
+p_array = [ 1 , true , "foo" , null , undefined ]
+print ( JSON . stringify ( p_array ) == '[1,true,"foo",null,null]' )
+o_array = [ new Number ( 1 ) , new Boolean ( true ) , new String ( "foo" ) ]
+print ( JSON . stringify ( o_array ) == '[1,true,"foo"]' )
+child = [ 1 , new String ( "\nfoo" ) , undefined ]
+parent = [ true , child , null ]
+print ( JSON . stringify ( parent ) == '[true,[1,"\\nfoo",null],null]' )
+recursive_array = [ ]
+recursive_array [ 0 ] = 2
+recursive_array [ 1 ] = recursive_array
+try { JSON . stringify ( recursive_array )
+$ ( $ )
+} catch ( e ) { print ( e instanceof TypeError )
+}
+object = { "a" : 1 , "b" : [ 1 , true , { "a" : "foo" } ] }
+print ( JSON . stringify ( object ) == '{"a":1,"b":[1,true,{"a":"foo"}]}' )
+object = { "a" : [ 1 ] , "b" : { } }
+print ( JSON . stringify ( object ) === '{"a":[1],"b":{}}' )
+array = [ 1 , { "a" : 2 , "b" : true , c : [ 3 ] } ]
+print ( JSON . stringify ( array ) == '[1,{"a":2,"b":true,"c":[3]}]' )
+to_json_object = { }
+to_json_object . $ = 0
+to_json_object . $ = function ( ) {
+}
+var v1 = ( new Int8Array ( 149 ) ) . subarray ( 78 )
+function replacer_function ( $ , value ) { if ( typeof ( value ) == "string" ) return "FOO"
+return value
+} object = { "a" : "JSON" , "b" : new String ( "JSON" ) , "c" : 3 }
+print ( JSON . stringify ( object , replacer_function ) == '{"a":"FOO","b":"JSON","c":3}' )
+filter = [ "a" , "b" ]
+print ( JSON . stringify ( object , filter ) == '{"a":"JSON","b":"JSON"}' )
+print ( JSON . stringify ( [ ] , [ "" , 4 ] ) === '[]' )
+number = new Number ( 2.2 )
+number . toString = { }
+new Promise ( isFinite . toString ) . catch ( Promise . prototype . then )
+try { } catch ( $ ) { $ ( $ instanceof $ )
+}
+function replacer_thrower ( ) { throw new ReferenceError ( "foo" )
+} try { JSON . stringify ( object , replacer_thrower )
+} catch ( e ) { print ( e . message === "foo" )
+print ( e instanceof ReferenceError )
+}
+object = { "a" : 2 }
+print ( JSON . stringify ( object , 3 ) == '{"a":2}' )
+print ( JSON . stringify ( object , 0 ) == '{"a":2}' )
+print ( JSON . stringify ( object , 0 ) == '{"a":2}' )
+print ( JSON . stringify ( object , undefined ) == '{"a":2}' )
+print ( JSON . stringify ( object , 0 ) == '{"a":2}' )
+print ( JSON . stringify ( object , new Boolean ( 0 ) ) == '{"a":2}' )
+print ( JSON . stringify ( object , 0 , "asd\u20400123456789" ) == '{\nasd⁀012345"a": 2\n}' )
+print ( JSON . stringify ( object , 0 , 100 ) == '{\n          "a": 2\n}' )
+print ( JSON . stringify ( object , 0 , - 5 ) == '{"a":2}' )
+array = [ 2 ]
+print ( JSON . stringify ( array , 0 , "   " ) == '[\n   2\n]' )
+print ( JSON . stringify ( array , 0 , "asd" ) == '[\nasd2\n]' )
+print ( JSON . stringify ( array , 0 , "asd0123456789" ) == '[\nasd01234562\n]' )
+print ( JSON . stringify ( array , 0 , "asd\u20400123456789" ) == '[\nasd⁀0123452\n]' )
+print ( JSON . stringify ( array , 0 , 100 ) == '[\n          2\n]' )
+print ( JSON . stringify ( array , 0 , - 5 ) == '[2]' )
+nested_object = { do : 2 , let : this }
+print ( JSON . stringify ( nested_object , 0 , 2 ) == '{\n  "a": 2,\n  "b": {\n    "c": 1,\n    "d": true\n  }\n}' )
+$ = [ $ , [ $ ] ]
+$ ( $ . $ ( nested_array , $ , 2 ) == '[\n  2,\n  [\n    1,\n    true\n  ]\n]' )
+$
+$
+$
+$ ( $ . $ ( $ , 0 , $ ) == $ )
+eval ( "{}/a/g" )
+$ ( $ . $ ( $ , $ , [ $ , $ , 0 ] ) == $ )
+$ ( $ . $ ( $ , $ , { $ : 3 } ) == $ )