deps: Refactor dependencies (#3224)

* remove spring dep
move junit, logging, mockito under dep mgmt

* upgrade anti-corruption-layer deps

* async method invocation

* balking, bloc

* bridge to bytecode

* caching

* callback - cqrs

* component - health check

* hexagonal - metadata mapping

* rest of the patterns

* remove checkstyle, take spotless into use

null-object/src/test/java/com/iluwatar/nullobject/NullNodeTest.java

@@ -24,22 +24,17 @@
  */
 package com.iluwatar.nullobject;
 
-import org.junit.jupiter.api.Test;
-
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertSame;
 
-/**
- * NullNodeTest
- *
- */
+import org.junit.jupiter.api.Test;
+
+/** NullNodeTest */
 class NullNodeTest {
 
-  /**
-   * Verify if {@link NullNode#getInstance()} actually returns the same object instance
-   */
+  /** Verify if {@link NullNode#getInstance()} actually returns the same object instance */
   @Test
   void testGetInstance() {
     final var instance = NullNode.getInstance();
@@ -57,7 +52,7 @@ class NullNodeTest {
   }
 
   /**
-   * Removed unnecessary test method for {@link NullNode#walk()} as the method doesn't have an implementation.
+   * Removed unnecessary test method for {@link NullNode#walk()} as the method doesn't have an
+   * implementation.
    */
-
 }