Use getter instead of accessing the protected property directly. (#14984

)

PHP Fatal error:  Uncaught Error: Cannot access protected property

src/Illuminate/Database/Query/JoinClause.php

@@ -42,7 +42,7 @@ public function __construct(Builder $parentQuery, $type, $table)
         $this->parentQuery = $parentQuery;
 
         parent::__construct(
-            $parentQuery->connection, $parentQuery->grammar, $parentQuery->processor
+            $parentQuery->getConnection(), $parentQuery->getGrammar(), $parentQuery->getProcessor()
         );
     }