fix xml check, add javadoc

.automation/test/java/java_good_1.java

@@ -1,9 +1,11 @@
+package com.superlinter.JavaGood;
 /* This is a simple Java program.
    FileName : "HelloWorld.java". */
 
-package com.superlinter.JavaGood;
-
-public class JavaGood {
+/**
+ * Represents a good Java file
+*/
+class JavaGood {
     // Prints "Hello, World" to the terminal window.
     public static void main(final String[] args) {
         System.out.println("Hello, World");

.github/linters/sun_checks.xml

@@ -58,7 +58,7 @@
 
   <!-- Checks that a package-info.java file exists for each package.     -->
   <!-- See https://checkstyle.org/config_javadoc.html#JavadocPackage -->
-  <module name="JavadocPackage"/>
+  <!-- <module name="JavadocPackage"/> -->
 
   <!-- Checks whether files end with a new line.                        -->
   <!-- See https://checkstyle.org/config_misc.html#NewlineAtEndOfFile -->