Condense exception message for wrong array value type

Author: cweiske

src/JsonMapper.php

@@ -495,9 +495,8 @@ public function mapArray($json, $array, $class = null, $parent_key = '')
                     } else if ($this->bStrictObjectTypeChecking) {
                         throw new JsonMapper_Exception(
                             'JSON property'
-                                . ' "' . ($parent_key ? $parent_key : '?') . '"'
-                                . ' (array key "' . $key . '") must be an object, '
-                                . gettype($jvalue) . ' given'
+                            . ' "' . ($parent_key ? $parent_key : '?') . '[' . $key . ']"'
+                            . ' must be an object, ' . gettype($jvalue) . ' given'
                         );
                     } else {
                         $array[$key] = $this->createInstance(

tests/ObjectTest.php

@@ -145,7 +145,7 @@ public function testStrictTypeCheckingObjectInArrayError()
     {
         $this->expectException(JsonMapper_Exception::class);
         $this->expectExceptionMessage(
-            'JSON property "?" (array key "0") must be an object, string given'
+            'JSON property "?[0]" must be an object, string given'
         );
         $jm = new JsonMapper();
         $jm->bStrictObjectTypeChecking = true;