fix: fix java lint errors

test/java-jar/src/main/java/com/example/servingwebcontent/GreetingController.java

@@ -5,13 +5,24 @@ import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 
+/**
+ * Controller for handling greeting requests.
+ */
 @Controller
 public class GreetingController {
 
-	@GetMapping("/greeting")
-	public String greeting(@RequestParam(name="name", required=false, defaultValue="World") String name, Model model) {
-		model.addAttribute("name", name);
-		return "greeting";
-	}
-
+    /**
+     * Handles requests to the /greeting endpoint.
+     * 
+     * @param name the name of the person to greet
+     * @param model the model to add attributes to
+     * @return the name of the view to render
+     */
+    @GetMapping("/greeting")
+    public String greeting(
+            @RequestParam(name = "name", required = false, defaultValue = "World") 
+            final String name, final Model model) {
+        model.addAttribute("name", name);
+        return "greeting";
+    }
 }

test/java-jar/src/main/java/com/example/servingwebcontent/ServingWebContentApplication.java

@@ -2,13 +2,26 @@ package com.example.servingwebcontent;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
 
+/**
+ * Main application class for serving web content.
+ */
 @SpringBootApplication
-public class ServingWebContentApplication {
+public final class ServingWebContentApplication {
 
-    public static void main(String[] args) {
-        SpringApplication.run(ServingWebContentApplication.class, args);
+    /**
+     * Private constructor to prevent instantiation.
+     */
+    private ServingWebContentApplication() {
+        throw new UnsupportedOperationException();
     }
 
+    /**
+     * Main method to start the Spring Boot application.
+     *
+     * @param args command-line arguments
+     */
+    public static void main(final String[] args) {
+        SpringApplication.run(ServingWebContentApplication.class, args);
+    }
 }

test/java-jar/src/main/java/com/example/servingwebcontent/package-info.java

+/**
+ * This package contains the main classes for the Serving Web Content
+ * application.
+ */
+package com.example.servingwebcontent;

test/java-jar/src/main/resources/application.properties

-server.servlet.context-path=/java-spring-boot
\ No newline at end of file
+server.servlet.context-path=/java-spring-boot