diff --git a/src/Controller.java b/src/Controller.java
index 5e258c3630c0501f1f97a0faa8becea910835ad9..06620e0f1fe6b244bd421db819395eeee90cfe6f 100644
--- a/src/Controller.java
+++ b/src/Controller.java
@@ -23,4 +23,8 @@ public class Controller {
     // maintains an index with the allocation of files to Dstores
     // waits for Dstores to join the datastore (rebalance operation)
     // it doesn't serve any client request until at least R Dstores have joined the system
+
+    public static void main (String[] args) {
+
+    }
 }
\ No newline at end of file
diff --git a/src/Dstore.java b/src/Dstore.java
index 20bfc0c8c74297a8739622d45f4e02f2b2c928f0..039ecbdb10ae877b38a85d9b716aeb01d87d44d3 100644
--- a/src/Dstore.java
+++ b/src/Dstore.java
@@ -15,4 +15,8 @@ public class Dstore {
         this.timeout = timeout;
         this. file_folder = file_folder;
     }
+
+    public static void main (String[] args) {
+
+    }
 }
\ No newline at end of file