Add main class

gradle/gradle-fat-jar/src/main/java/com/baeldung/fatjar/Application.java

@@ -0,0 +1,16 @@
+package com.baeldung.fatjar;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+public class Application {
+
+    static final Logger logger = LoggerFactory.getLogger(Application.class);
+
+    public static void main(String[] args) {
+
+       logger.info("Hello at Baeldung!");
+    }
+
+}