diff -u b/core/modules/migrate/lib/Drupal/migrate/MigrateExecutable.php b/core/modules/migrate/lib/Drupal/migrate/MigrateExecutable.php
--- b/core/modules/migrate/lib/Drupal/migrate/MigrateExecutable.php
+++ b/core/modules/migrate/lib/Drupal/migrate/MigrateExecutable.php
@@ -345,7 +345,10 @@
           $multiple = $multiple || $plugin->multiple();
         }
       }
-      $row->setDestinationProperty($destination, $value);
+      // No plugins means do not set.
+      if ($plugins) {
+        $row->setDestinationProperty($destination, $value);
+      }
       // Reset the value.
       $value = NULL;
     }
@@ -373,7 +376,7 @@
       return FALSE;
     }
     // Calculate if the time limit is exceeded.
-    $time_elapsed = time() - REQUEST_TIME;
+    $time_elapsed = $this->getTimeElapsed();
     if ($time_elapsed >= $time_limit) {
       return TRUE;
     }
diff -u b/core/modules/migrate/tests/Drupal/migrate/Tests/MigrateExecutableTest.php b/core/modules/migrate/tests/Drupal/migrate/Tests/MigrateExecutableTest.php
--- b/core/modules/migrate/tests/Drupal/migrate/Tests/MigrateExecutableTest.php
+++ b/core/modules/migrate/tests/Drupal/migrate/Tests/MigrateExecutableTest.php
@@ -427,6 +427,19 @@
   }
 
   /**
+   * Tests the processRow method with an empty pipeline.
+   */
+  public function testProcessRowEmptyPipeline() {
+    $this->migration->expects($this->once())
+      ->method('getProcessPlugins')
+      ->with(NULL)
+      ->will($this->returnValue(array('test' => array())));
+    $row = new Row(array(), array());
+    $this->executable->processRow($row);
+    $this->assertSame($row->getDestination(), array());
+  }
+
+  /**
    * Returns a mock migration source instance.
    *
    * @return \Drupal\migrate\Source|\PHPUnit_Framework_MockObject_MockObject