update

build.gradle

@@ -15,7 +15,7 @@ sourceCompatibility = JavaVersion.VERSION_21
 targetCompatibility = JavaVersion.VERSION_21
 
 application {
-    mainClass = 'lodge.reservationsytem.TestReservations'
+    mainClass = 'lodge.TestReservations'
 }
 
 sourceSets {
@@ -34,3 +34,17 @@ dependencies {
   implementation files('libs/gson-2.13.1.jar')
 }
 
+jar {
+  manifest {
+    attributes 'Main-Class': application.mainClass 
+  }
+}
+
+tasks.named('jar') {
+    manifest {
+        attributes('Implementation-Title': 'reservationsystem',
+                   'Implementation-Version': 1.0,
+                   'Main-Class': 'lodge.TestReservations',
+                   'Class-Path': 'lodge.reservationsystem com.google.gson .' )
+    }
+}