diff --git a/pdex/src/processing/mode/experimental/ErrorCheckerService.java b/pdex/src/processing/mode/experimental/ErrorCheckerService.java
index 325f09f2c..307cd3b53 100644
--- a/pdex/src/processing/mode/experimental/ErrorCheckerService.java
+++ b/pdex/src/processing/mode/experimental/ErrorCheckerService.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2012-14 Manindra Moharana <me@mkmoharana.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
 package processing.mode.experimental;
 
 import static processing.mode.experimental.ExperimentalMode.log;
@@ -42,6 +59,12 @@ import processing.app.syntax.SyntaxDocument;
 import processing.core.PApplet;
 import processing.mode.java.preproc.PdePreprocessor;
 
+/**
+ * The main error checking service
+ * 
+ * @author Manindra Moharana &lt;me@mkmoharana.com&gt;
+ *
+ */
 public class ErrorCheckerService implements Runnable{
   
   protected DebugEditor editor;