Added test for 409 Conflict Exceptions

Author: germanattanasio

src/test/java/com/ibm/watson/developer_cloud/service/GenericServiceTest.java

@@ -138,6 +138,15 @@ public void testServiceUnavailableException() {
     service.getProfile(sampleText);
   }
 
+  /**
+   * Test service conflict exception.
+   */
+  @Test(expected = ConflictException.class)
+  public void testConflictException() {
+    mockAPICallWithError(409, "Conflict Exception");
+    service.getProfile(sampleText);
+  }
+
   /**
    * Test too many requests exception.
    */