diff --git a/.gitignore b/.gitignore
index 5d2cd77e1..589d3fb13 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,4 +11,9 @@ target
 .idea
 *.iml
 *.swp
-datanucleus.log
\ No newline at end of file
+datanucleus.log
+/bin/
+/bin/
+/bin/
+
+data-mapper/src/main/resources/log4j.xml
\ No newline at end of file
diff --git a/data-mapper/src/test/java/com/iluwatar/datamapper/StudentTest.java b/data-mapper/src/test/java/com/iluwatar/datamapper/StudentTest.java
index c441d6d6e..a3c0e46c1 100644
--- a/data-mapper/src/test/java/com/iluwatar/datamapper/StudentTest.java
+++ b/data-mapper/src/test/java/com/iluwatar/datamapper/StudentTest.java
@@ -28,7 +28,8 @@ public final class StudentTest {
   /**
    * This API tests the equality behaviour of Student object
    * Object Equality should work as per logic defined in equals method
-   * @throws Exception
+   * 
+   * @throws Exception if any execution error during test
    */
   public void testEquality() throws Exception {