MDEV-17454 JSON_VALID( '{"a":1]' ) evaluates to 1.

Produce syntax error when '{...]'.

mysql-test/r/func_json.result

@@ -824,3 +824,9 @@ t2	CREATE TABLE `t2` (
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 DROP TABLE t1, t2;
 SET sql_mode=default;
+#
+# MDEV-17454 JSON_VALID( '{"a":1]' ) evaluates to 1
+#
+select JSON_VALID( '{"a":1]' );
+JSON_VALID( '{"a":1]' )
+0

mysql-test/t/func_json.test

@@ -481,3 +481,9 @@ SHOW CREATE TABLE t2;
 DROP TABLE t1, t2;
 SET sql_mode=default;
 
+--echo #
+--echo # MDEV-17454 JSON_VALID( '{"a":1]' ) evaluates to 1
+--echo #
+
+select JSON_VALID( '{"a":1]' );
+

strings/json_lib.c

@@ -774,7 +774,7 @@ static json_state_handler json_actions[NR_JSON_STATES][NR_C_CLASSES]=
     syntax_error,   syntax_error, syntax_error, syntax_error, syntax_error,
     syntax_error,   syntax_error, syntax_error, not_json_chr, bad_chr},
   {/*OBJ_CONT*/
-    unexpected_eos, syntax_error, end_object,    syntax_error,   end_array,
+    unexpected_eos, syntax_error, end_object,    syntax_error,   syntax_error,
     syntax_error,   next_key,     syntax_error,  syntax_error,   syntax_error,
     syntax_error,    syntax_error,    syntax_error,    not_json_chr, bad_chr},
   {/*ARRAY_CONT*/