[Linter] Upgrade Checkstyle plugin to 3.1.2 supporting Checkstyle version up to 8.41 (#1226)

* Upgrade checkstyle plugin to latest version 3.1.2

* Update rules to support Checkstyle 8.41

* Fix linter issue

etc/bot-checkstyle.xml

@@ -85,6 +85,10 @@
 
     <module name="SuppressWarningsFilter" />
 
+    <module name="LineLength">
+      <property name="max" value="120"/>
+    </module>
+
     <module name="TreeWalker">
         <!-- check for usage of literal equality "==" between string -->
         <module name="StringLiteralEquality"/>
@@ -125,10 +129,7 @@
         </module>
 
         <!-- Checks for Size Violations.                    -->
-        <!-- See http://checkstyle.sourceforge.net/config_sizes.html -->
-        <module name="LineLength">
-          <property name="max" value="120"/>
-        </module>
+        <!-- See http://checkstyle.sourceforge.net/config_sizes.html -->        
         <module name="MethodLength"/>
         <module name="ParameterNumber"/>
 

libraries/bot-builder/src/main/java/com/microsoft/bot/builder/RegisterClassMiddleware.java

@@ -57,12 +57,12 @@ public class RegisterClassMiddleware<T> implements Middleware {
         this.service = withService;
     }
 
-    @Override
     /**
      * Adds the associated object or service to the current turn context.
      * @param turnContext The context object for this turn.
      * @param next The delegate to call to continue the bot middleware pipeline.
      */
+    @Override
     public CompletableFuture<Void> onTurn(TurnContext turnContext, NextDelegate next) {
         if (!StringUtils.isBlank(key)) {
             turnContext.getTurnState().add(key, service);

pom.xml

@@ -18,7 +18,7 @@
     <jdk.version>1.8</jdk.version>
     <maven.compiler.target>1.8</maven.compiler.target>
     <maven.compiler.source>1.8</maven.compiler.source>
-    <checkstyle.version>3.1.0</checkstyle.version>
+    <checkstyle.version>3.1.2</checkstyle.version>
     <pmd.version>3.14.0</pmd.version>
     <exclude.tests>%regex[.*recognizers.*]</exclude.tests>
     <!-- <repo.id>MyGet</repo.id> -->