Hack that adds more convenient defaults for J2K, minimal test for these defaults

j2k/tests/testData/plugin/file/example.jav

@@ -0,0 +1,10 @@
+class Example {
+  void main(Integer param1, int param2) {
+    Library.getString().isEmpty();
+    Integer i = 10;
+    for (Integer a : Arrays.asList(1, 2, 3)) {
+
+    }
+  }
+}
+

j2k/tests/testData/plugin/file/example.kt

@@ -0,0 +1,9 @@
+open class Example() {
+open fun main(param1 : Int, param2 : Int) : Unit {
+Library.getString().isEmpty()
+val i = 10
+for (a in Arrays.asList(1, 2, 3))
+{
+}
+}
+}