IntellJ Code Analysis clean-up

Plan/src/main/java/com/djrapitops/plan/Plan.java

@@ -174,7 +174,7 @@ public class Plan extends BukkitPlugin<Plan> implements IPlan {
 
             setupFilter(); // TODO Move to RegisterCommand Constructor
 
-            // Data view settings // TODO Rewrite. (TextUI removed & webserver might be running on bungee
+            // Data view settings // TODO Rewrite. (TextUI removed & webServer might be running on bungee
             boolean usingAlternativeIP = Settings.SHOW_ALTERNATIVE_IP.isTrue();
             boolean hasDataViewCapability = usingAlternativeIP;
 
@@ -255,7 +255,7 @@ public class Plan extends BukkitPlugin<Plan> implements IPlan {
     /**
      * Disables the plugin.
      * <p>
-     * Stops the webserver, cancels all tasks and saves cache to the database.
+     * Stops the webServer, cancels all tasks and saves cache to the database.
      */
     @Override
     public void onDisable() {
@@ -357,9 +357,9 @@ public class Plan extends BukkitPlugin<Plan> implements IPlan {
     }
 
     /**
-     * Used to access Webserver.
+     * Used to access WebServer.
      *
-     * @return the Webserver
+     * @return the WebServer
      */
     public WebServer getWebServer() {
         return webServer;

Plan/src/main/java/com/djrapitops/plan/command/commands/AnalyzeCommand.java

@@ -80,9 +80,8 @@ public class AnalyzeCommand extends SubCommand {
         boolean refresh = !analysisRefreshDate.isPresent()
                 || analysisRefreshDate.get() < MiscUtils.getTime() - TimeAmount.MINUTE.ms()
                 || forcedRefresh;
-        if (refresh) {
+
         updateCache(sender, refresh);
-        }
 
         sender.sendMessage(Locale.get(Msg.CMD_INFO_FETCH_DATA).toString());
         if (plugin.getWebServer().isAuthRequired() && CommandUtils.isPlayer(sender)) {

Plan/src/main/java/com/djrapitops/plan/data/analysis/ActivityPart.java

@@ -12,7 +12,6 @@ import main.java.com.djrapitops.plan.utilities.analysis.MathUtils;
 import main.java.com.djrapitops.plan.utilities.html.HtmlUtils;
 import main.java.com.djrapitops.plan.utilities.html.graphs.PlayerActivityGraphCreator;
 import main.java.com.djrapitops.plan.utilities.html.graphs.PunchCardGraphCreator;
-import main.java.com.djrapitops.plan.utilities.html.graphs.SessionLengthDistributionGraphCreator;
 
 import java.util.*;
 import java.util.stream.Collectors;
@@ -82,7 +81,6 @@ public class ActivityPart extends RawData {
                 .filter(s -> s.getSessionStart() > MiscUtils.getTime() - TimeAmount.MONTH.ms())
                 .collect(Collectors.toList());
         addValue("punchCardSeries", PunchCardGraphCreator.createDataSeries(sessionsMonth));
-        addValue("sessionLengthSeries", SessionLengthDistributionGraphCreator.createDataSeries(lengths));
     }
 
     private void playerActivityGraphs() {

Plan/src/main/java/com/djrapitops/plan/database/databases/MySQLDB.java

@@ -26,7 +26,7 @@ public class MySQLDB extends SQLDB {
      */
     @Override
     public void setupDataSource() throws DatabaseInitException {
-        IFileConfig config = null;
+        IFileConfig config;
         try {
             config = plugin.getIConfig().getConfig();
         } catch (IOException e) {

Plan/src/main/java/com/djrapitops/plan/systems/cache/DataCache.java

@@ -76,7 +76,7 @@ public class DataCache extends SessionCache {
     public String getDisplayName(UUID uuid) {
         String cached = displayNames.get(uuid);
         if (cached == null) {
-            List<String> nicknames = null;
+            List<String> nicknames;
             try {
                 nicknames = db.getNicknamesTable().getNicknames(uuid);
                 if (!nicknames.isEmpty()) {

Plan/src/main/java/com/djrapitops/plan/systems/listeners/PlanChatListener.java

@@ -47,7 +47,6 @@ public class PlanChatListener implements Listener {
         String name = p.getName();
         String displayName = p.getDisplayName();
 
-        DataCache dataCache = plugin.getDataCache();
         if (dataCache.isFirstSession(uuid)) {
             dataCache.firstSessionMessageSent(uuid);
         }

Plan/src/main/java/com/djrapitops/plan/systems/listeners/PlanGamemodeChangeListener.java

@@ -47,9 +47,8 @@ public class PlanGamemodeChangeListener implements Listener {
         String worldName = p.getWorld().getName();
 
         Optional<Session> cachedSession = plugin.getDataCache().getCachedSession(uuid);
-        if (cachedSession.isPresent()) {
+        cachedSession.ifPresent(session -> {
-            Session session = cachedSession.get();
             session.changeState(worldName, gameMode, time);
-        }
+        });
     }
 }

Plan/src/main/java/com/djrapitops/plan/systems/listeners/PlanWorldChangeListener.java

@@ -29,9 +29,8 @@ public class PlanWorldChangeListener implements Listener {
         long time = MiscUtils.getTime();
 
         Optional<Session> cachedSession = plugin.getDataCache().getCachedSession(uuid);
-        if (cachedSession.isPresent()) {
+        cachedSession.ifPresent(session -> {
-            Session session = cachedSession.get();
             session.changeState(worldName, gameMode, time);
-        }
+        });
     }
 }

Plan/src/main/java/com/djrapitops/plan/systems/processing/player/RegisterProcessor.java

@@ -10,6 +10,7 @@ import main.java.com.djrapitops.plan.data.Action;
 import main.java.com.djrapitops.plan.database.Database;
 import main.java.com.djrapitops.plan.database.tables.Actions;
 import main.java.com.djrapitops.plan.database.tables.UserInfoTable;
+import main.java.com.djrapitops.plan.database.tables.UsersTable;
 
 import java.sql.SQLException;
 import java.util.UUID;
@@ -39,8 +40,12 @@ public class RegisterProcessor extends PlayerProcessor {
         UUID uuid = getUUID();
         Plan plugin = Plan.getInstance();
         Database db = plugin.getDB();
+        UsersTable usersTable = db.getUsersTable();
         UserInfoTable userInfoTable = db.getUserInfoTable();
         try {
+            if (!usersTable.isRegistered(uuid)) {
+                usersTable.registerUser(uuid, registered, name);
+            }
             if (userInfoTable.isRegistered(uuid)) {
                 return;
             }

Plan/src/main/java/com/djrapitops/plan/systems/tasks/TPSCountTimer.java

@@ -5,7 +5,6 @@ import com.djrapitops.plugin.task.AbsRunnable;
 import main.java.com.djrapitops.plan.Log;
 import main.java.com.djrapitops.plan.Plan;
 import main.java.com.djrapitops.plan.data.TPS;
-import main.java.com.djrapitops.plan.systems.cache.DataCache;
 import main.java.com.djrapitops.plan.systems.processing.TPSInsertProcessor;
 import main.java.com.djrapitops.plan.utilities.MiscUtils;
 import main.java.com.djrapitops.plan.utilities.analysis.MathUtils;
@@ -24,7 +23,6 @@ import java.util.List;
 public class TPSCountTimer extends AbsRunnable {
 
     private final Plan plugin;
-    private final DataCache dataCache;
     private final List<TPS> history;
     private long lastCheckNano;
 
@@ -33,7 +31,6 @@ public class TPSCountTimer extends AbsRunnable {
     public TPSCountTimer(Plan plugin) {
         super("TPSCountTimer");
         lastCheckNano = -1;
-        this.dataCache = plugin.getDataCache();
         this.plugin = plugin;
         history = new ArrayList<>();
     }

Plan/src/main/java/com/djrapitops/plan/systems/webserver/WebServer.java

@@ -96,9 +96,7 @@ public class WebServer {
                 server = HttpServer.create(new InetSocketAddress(port), 10);
             }
 
-            server.createContext("/", new HttpHandler() {
+            server.createContext("/", exchange -> {
-                @Override
-                public void handle(HttpExchange exchange) {
                 Headers responseHeaders = exchange.getResponseHeaders();
                 URI uri = exchange.getRequestURI();
                 String target = uri.toString();
@@ -144,7 +142,6 @@ public class WebServer {
                 } finally {
                     exchange.close();
                 }
-                }
             });
 
             server.setExecutor(new ThreadPoolExecutor(4, 8, 30, TimeUnit.SECONDS, new ArrayBlockingQueue<>(100)));
@@ -433,12 +430,11 @@ public class WebServer {
     }
 
     private Response forbiddenResponse(int permLevel, int required) {
-        return PageCache.loadPage("forbidden", () -> {
+        return PageCache.loadPage("forbidden", () ->
-            return new ForbiddenResponse("Unauthorized User.<br>"
+                new ForbiddenResponse("Unauthorized User.<br>"
                 + "Make sure your user has the correct access level.<br>"
                 + "This page requires permission level of " + required + ",<br>"
-                    + "This user has permission level of " + permLevel);
+                + "This user has permission level of " + permLevel));
-        });
     }
 
     private Response rootPageResponse(WebUser user) {

Plan/src/main/java/com/djrapitops/plan/utilities/html/HtmlStructure.java

@@ -44,8 +44,7 @@ public class HtmlStructure {
             return "";
         }
         StringBuilder builder = new StringBuilder();
-        for (int i = 0; i < elements.length; i++) {
+        for (String element : elements) {
-            String element = elements[i];
             if (element.isEmpty()) {
                 continue;
             }
@@ -74,7 +73,7 @@ public class HtmlStructure {
             builder.append("Playtime: ").append(FormatUtils.formatTimeAmount(playTime)).append("<br>");
             builder.append("<br>");
             long longestSessionLength = AnalysisUtils.getLongestSessionLength(serverSessions);
-            builder.append("Longest Session: " + FormatUtils.formatTimeAmount(longestSessionLength));
+            builder.append("Longest Session: ").append(FormatUtils.formatTimeAmount(longestSessionLength));
 
             // Content and box end
             builder.append("</p></div>");

Plan/src/main/resources/player - Example.html

@@ -167,7 +167,7 @@
                                             <table class="sortable table">
                                                 <thead>
                                                 <tr>
-                                                    <th><i class="fa fa-clock-o" aria-hidden="true"> Time</th>
+                                                    <th><i class="fa fa-clock-o" aria-hidden="true"></i> Time</th>
                                                     <th>Killed</th>
                                                     <th>With</th>
                                                 </tr>
@@ -216,7 +216,7 @@
                                             <table class="sortable table">
                                                 <thead>
                                                 <tr>
-                                                    <th><i class="fa fa-clock-o" aria-hidden="true"> Time</th>
+                                                    <th><i class="fa fa-clock-o" aria-hidden="true"></i> Time</th>
                                                     <th>Killed</th>
                                                     <th>With</th>
                                                 </tr>