???

src/main/java/gr8_puzzle/Puzzle.java

@@ -0,0 +1,8 @@
+package gr8_puzzle;
+
+public class Puzzle {
+
+  public static void main(String[] args) {
+    System.out.println("Hello world");
+  }
+}

src/test/java/gr8_puzzle/Puzzle-Test.java

@@ -0,0 +1,9 @@
+package gr8_puzzle;
+
+import org.junit.jupiter.api.Test;
+
+class TemplateTest {
+
+  @Test
+  void firstCase() {}
+}