Merge pull request #9 from eugenp/master

update with origin

spark-java/src/main/java/com/baeldung/sparkjava/UserException.java

@@ -0,0 +1,13 @@
+package com.baeldung.sparkjava;
+
+public class UserException extends Exception {
+
+    public UserException() {
+        super();
+    }
+
+    public UserException(String message) {
+        super(message);
+    }
+
+}