diff --git a/data-mapper/src/main/java/com/iluwatar/datamapper/DataMapperException.java b/data-mapper/src/main/java/com/iluwatar/datamapper/DataMapperException.java
index 24a7cf081..a6995b06d 100644
--- a/data-mapper/src/main/java/com/iluwatar/datamapper/DataMapperException.java
+++ b/data-mapper/src/main/java/com/iluwatar/datamapper/DataMapperException.java
@@ -29,15 +29,6 @@ public final class DataMapperException extends RuntimeException {
 
   private static final long serialVersionUID = 1L;
 
-  /**
-   * Constructs a new runtime exception with {@code null} as its detail message. The cause is not
-   * initialized, and may subsequently be initialized by a call to {@link #initCause}.
-   */
-  public DataMapperException() {
-    super();
-  }
-
-
   /**
    * Constructs a new runtime exception with the specified detail message. The cause is not
    * initialized, and may subsequently be initialized by a call to {@link #initCause}.
@@ -48,34 +39,4 @@ public final class DataMapperException extends RuntimeException {
   public DataMapperException(final String message) {
     super(message);
   }
-
-  /**
-   * Constructs a new runtime exception with the specified detail message and cause.
-   * <p>
-   * Note that the detail message associated with {@code cause} is <i>not</i> automatically
-   * incorporated in this runtime exception's detail message.
-   *
-   * @param message the detail message (which is saved for later retrieval by the
-   *        {@link #getMessage()} method).
-   * @param cause the cause (which is saved for later retrieval by the {@link #getCause()} method).
-   *        (A <tt>null</tt> value is permitted, and indicates that the cause is nonexistent or
-   *        unknown.)
-   */
-  public DataMapperException(final String message, final Throwable cause) {
-    super(message, cause);
-  }
-
-  /**
-   * Constructs a new runtime exception with the specified cause and a detail message of
-   * <tt>(cause==null ? null : cause.toString())</tt> (which typically contains the class and detail
-   * message of <tt>cause</tt>). This constructor is useful for runtime exceptions that are little
-   * more than wrappers for other throwables.
-   *
-   * @param cause the cause (which is saved for later retrieval by the {@link #getCause()} method).
-   *        (A <tt>null</tt> value is permitted, and indicates that the cause is nonexistent or
-   *        unknown.)
-   */
-  public DataMapperException(final Throwable cause) {
-    super(cause);
-  }
 }
diff --git a/pom.xml b/pom.xml
index 555844660..6e0b14170 100644
--- a/pom.xml
+++ b/pom.xml
@@ -61,6 +61,7 @@
 		<module>bridge</module>
 		<module>composite</module>
 		<module>dao</module>
+		<module>data-mapper</module>
 		<module>decorator</module>
 		<module>facade</module>
 		<module>flyweight</module>