cleanup

.vscode/launch.json

@@ -4,24 +4,12 @@
     // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
     "version": "0.2.0",
     "configurations": [
-        {
-            "type": "java",
-            "name": "Debug (Launch)",
-            "request": "launch",
-            "mainClass": ""
-        },
         {
             "type": "java",
             "name": "Debug (Launch) - Current File",
             "request": "launch",
             "mainClass": "${file}"
-        },
-        {
-            "type": "java",
-            "name": "Debug (Launch)-Main<001_sequential_migration>",
-            "request": "launch",
-            "mainClass": "Main",
-            "projectName": "001_sequential_migration"
         }
+       
     ]
 }

tools/gradle/simplegradlekotlin/build.gradle.kts

@@ -0,0 +1,10 @@
+plugins {
+    java
+}
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}
+
+version = "1.2.1"

tools/gradle/simplegradlekotlin/src/main/java/hello/HelloGradleKotlin.java

@@ -0,0 +1,15 @@
+package main.java.hello;
+
+/**
+ * HelloGradleKotlin
+ */
+public class HelloGradleKotlin {
+    private static final String HELLO_WORLD = "Hello World";
+
+    public static void main(String[] args) {
+        System.out.println(HELLO_WORLD);
+        System.out.println("test");
+        System.out.println("test4");
+        
+    }
+}