Updated log4j to log4j2

pom.xml

@@ -322,9 +322,9 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
-      <version>1.2.17</version>
+      <groupId>org.apache.logging.log4j</groupId>
+      <artifactId>log4j-core</artifactId>
+      <version>2.15.0</version>
     </dependency>
     <dependency>
       <groupId>org.postgresql</groupId>

src/main/java/net/socialgamer/cah/CahModule.java

@@ -35,7 +35,8 @@ import javax.servlet.ServletContext;
 import com.google.common.collect.ImmutableList;
 import com.google.inject.*;
 import net.socialgamer.cah.data.GameOptions;
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 import org.hibernate.Session;
 
 import com.google.common.collect.ImmutableSet;
@@ -56,7 +57,7 @@ import net.socialgamer.cah.metrics.UniqueIds;
  */
 public class CahModule extends AbstractModule {
 
-  private static final Logger LOG = Logger.getLogger(CahModule.class);
+  private static final Logger LOG = LogManager.getLogger(CahModule.class);
 
   private final Properties properties = new Properties();
 

src/main/java/net/socialgamer/cah/StartupUtils.java

@@ -25,6 +25,7 @@ package net.socialgamer.cah;
 
 import java.io.File;
 import java.io.FileReader;
+import java.net.URI;
 import java.util.Date;
 import java.util.Properties;
 import java.util.concurrent.ScheduledThreadPoolExecutor;
@@ -40,8 +41,8 @@ import net.socialgamer.cah.metrics.Metrics;
 import net.socialgamer.cah.task.BroadcastGameListUpdateTask;
 import net.socialgamer.cah.task.UserPingTask;
 
-import org.apache.log4j.Logger;
-import org.apache.log4j.PropertyConfigurator;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Guice;
 import com.google.inject.Injector;
@@ -58,7 +59,7 @@ import com.google.inject.servlet.GuiceServletContextListener;
  */
 public class StartupUtils extends GuiceServletContextListener {
 
-  private static final Logger LOG = Logger.getLogger(StartupUtils.class);
+  private static final Logger LOG = LogManager.getLogger(StartupUtils.class);
 
   /**
    * Context attribute key name for the Guice injector.
@@ -167,7 +168,8 @@ public class StartupUtils extends GuiceServletContextListener {
   public static void reconfigureLogging(final ServletContext context) {
     LOG.info("Reloading log4j.properties");
 
-    PropertyConfigurator.configure(context.getRealPath("/WEB-INF/log4j.properties"));
+    URI log4jProps = URI.create(context.getRealPath("/WEB-INF/log4j.properties"));
+    ((org.apache.logging.log4j.core.LoggerContext) LogManager.getContext(false)).setConfigLocation(log4jProps);
   }
 
   protected Injector getInjector(final ServletContext context) {

src/main/java/net/socialgamer/cah/customsets/CustomCardsService.java

@@ -33,7 +33,8 @@ import net.socialgamer.cah.CahModule.CustomDecksAllowedUrls;
 import net.socialgamer.cah.CahModule.CustomDecksEnabled;
 import org.apache.commons.codec.digest.DigestUtils;
 import org.apache.commons.lang3.StringEscapeUtils;
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 import org.json.simple.JSONArray;
 import org.json.simple.JSONObject;
 import org.json.simple.JSONValue;
@@ -52,7 +53,7 @@ import java.util.regex.Pattern;
 
 
 public class CustomCardsService {
-  private static final Logger LOG = Logger.getLogger(CustomCardsService.class);
+  private static final Logger LOG = LogManager.getLogger(CustomCardsService.class);
 
   private static final int GET_TIMEOUT = (int) TimeUnit.SECONDS.toMillis(3);
 

src/main/java/net/socialgamer/cah/data/ConnectedUsers.java

@@ -37,7 +37,8 @@ import java.util.stream.Collectors;
 
 import javax.annotation.Nullable;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Inject;
 import com.google.inject.Provider;
@@ -65,7 +66,7 @@ import net.socialgamer.cah.metrics.Metrics;
 @Singleton
 public class ConnectedUsers {
 
-  private static final Logger logger = Logger.getLogger(ConnectedUsers.class);
+  private static final Logger logger = LogManager.getLogger(ConnectedUsers.class);
 
   /**
    * Duration of a ping timeout, in nanoseconds.

src/main/java/net/socialgamer/cah/data/Game.java

@@ -34,7 +34,8 @@ import net.socialgamer.cah.data.QueuedMessage.MessageType;
 import net.socialgamer.cah.metrics.Metrics;
 import net.socialgamer.cah.task.SafeTimerTask;
 import org.apache.commons.lang3.StringUtils;
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 import org.hibernate.Session;
 
 import javax.annotation.Nonnull;
@@ -76,7 +77,7 @@ public class Game {
    * We need 20 * maxPlayers cards. This allows black cards up to "draw 9" to work correctly.
    */
   public final static int MINIMUM_WHITE_CARDS_PER_PLAYER = 20;
-  private static final Logger logger = Logger.getLogger(Game.class);
+  private static final Logger logger = LogManager.getLogger(Game.class);
   /**
    * Time, in milliseconds, to delay before starting a new round.
    */

src/main/java/net/socialgamer/cah/data/GameManager.java

@@ -31,7 +31,8 @@ import java.util.List;
 import java.util.Map;
 import java.util.TreeMap;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.inject.BindingAnnotation;
@@ -54,7 +55,7 @@ import net.socialgamer.cah.task.BroadcastGameListUpdateTask;
 @Singleton
 @GameId
 public class GameManager implements Provider<Integer> {
-  private static final Logger logger = Logger.getLogger(GameManager.class);
+  private static final Logger logger = LogManager.getLogger(GameManager.class);
 
   private final Provider<Integer> maxGamesProvider;
   private final Map<Integer, Game> games = new TreeMap<Integer, Game>();

src/main/java/net/socialgamer/cah/data/User.java

@@ -30,7 +30,8 @@ import java.util.concurrent.PriorityBlockingQueue;
 
 import javax.annotation.Nullable;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Inject;
 import com.google.inject.assistedinject.Assisted;
@@ -48,7 +49,7 @@ import net.socialgamer.cah.Constants.Sigil;
  */
 public class User {
 
-  private static final Logger LOG = Logger.getLogger(User.class);
+  private static final Logger LOG = LogManager.getLogger(User.class);
 
   private final String nickname;
 

src/main/java/net/socialgamer/cah/handlers/BanHandler.java

@@ -44,13 +44,14 @@ import net.socialgamer.cah.data.QueuedMessage;
 import net.socialgamer.cah.data.QueuedMessage.MessageType;
 import net.socialgamer.cah.data.User;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Inject;
 
 
 public class BanHandler extends Handler {
-  protected final Logger logger = Logger.getLogger(BanHandler.class);
+  protected final Logger logger = LogManager.getLogger(BanHandler.class);
 
   public static final String OP = AjaxOperation.BAN.toString();
 

src/main/java/net/socialgamer/cah/handlers/ChatHandler.java

@@ -28,7 +28,8 @@ import java.util.Map;
 
 import javax.servlet.http.HttpSession;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Inject;
 
@@ -54,7 +55,7 @@ import net.socialgamer.cah.util.ChatFilter;
  */
 public class ChatHandler extends Handler {
 
-  private static final Logger LOG = Logger.getLogger(ChatHandler.class);
+  private static final Logger LOG = LogManager.getLogger(ChatHandler.class);
   public static final String OP = AjaxOperation.CHAT.toString();
 
   private final ChatFilter chatFilter;

src/main/java/net/socialgamer/cah/handlers/FirstLoadHandler.java

@@ -32,7 +32,8 @@ import java.util.Set;
 
 import javax.servlet.http.HttpSession;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 import org.hibernate.Session;
 import org.hibernate.Transaction;
 
@@ -67,7 +68,7 @@ import net.socialgamer.cah.db.PyxCardSet;
  */
 public class FirstLoadHandler extends Handler {
 
-  private static final Logger LOG = Logger.getLogger(FirstLoadHandler.class);
+  private static final Logger LOG = LogManager.getLogger(FirstLoadHandler.class);
   public static final String OP = AjaxOperation.FIRST_LOAD.toString();
 
   private final Set<String> banList;

src/main/java/net/socialgamer/cah/handlers/GameChatHandler.java

@@ -28,7 +28,8 @@ import java.util.Map;
 
 import javax.servlet.http.HttpSession;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Inject;
 
@@ -55,7 +56,7 @@ import net.socialgamer.cah.util.ChatFilter;
  */
 public class GameChatHandler extends GameWithPlayerHandler {
 
-  private static final Logger LOG = Logger.getLogger(GameChatHandler.class);
+  private static final Logger LOG = LogManager.getLogger(GameChatHandler.class);
   public static final String OP = AjaxOperation.GAME_CHAT.toString();
 
   private final ChatFilter chatFilter;

src/main/java/net/socialgamer/cah/handlers/KickHandler.java

@@ -19,13 +19,14 @@ import net.socialgamer.cah.data.QueuedMessage;
 import net.socialgamer.cah.data.QueuedMessage.MessageType;
 import net.socialgamer.cah.data.User;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Inject;
 
 
 public class KickHandler extends Handler {
-  protected final Logger logger = Logger.getLogger(KickHandler.class);
+  protected final Logger logger = LogManager.getLogger(KickHandler.class);
 
   public static final String OP = AjaxOperation.KICK.toString();
 

src/main/java/net/socialgamer/cah/handlers/RegisterHandler.java

@@ -33,7 +33,8 @@ import javax.servlet.http.HttpSession;
 
 import org.apache.commons.lang3.StringUtils;
 import org.apache.http.HttpHeaders;
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Inject;
 import com.google.inject.Provider;
@@ -65,7 +66,7 @@ import net.socialgamer.cah.util.IdCodeMangler;
  */
 public class RegisterHandler extends Handler {
 
-  private static final Logger LOG = Logger.getLogger(RegisterHandler.class);
+  private static final Logger LOG = LogManager.getLogger(RegisterHandler.class);
   public static final String OP = AjaxOperation.REGISTER.toString();
 
   private static final Pattern VALID_NAME = Pattern.compile("[a-zA-Z_][a-zA-Z0-9_]{2,29}");

src/main/java/net/socialgamer/cah/handlers/StopGameHandler.java

@@ -37,7 +37,8 @@ import net.socialgamer.cah.data.Game;
 import net.socialgamer.cah.data.GameManager;
 import net.socialgamer.cah.data.User;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Inject;
 
@@ -47,7 +48,7 @@ import com.google.inject.Inject;
  */
 public class StopGameHandler extends GameWithPlayerHandler {
 
-  protected final Logger logger = Logger.getLogger(GameWithPlayerHandler.class);
+  protected final Logger logger = LogManager.getLogger(GameWithPlayerHandler.class);
 
   public static final String OP = AjaxOperation.STOP_GAME.toString();
 

src/main/java/net/socialgamer/cah/metrics/GeoIP.java

@@ -29,7 +29,8 @@ import java.net.InetAddress;
 import java.util.Properties;
 
 import org.apache.commons.lang3.StringUtils;
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Inject;
 import com.google.inject.Provider;
@@ -48,7 +49,7 @@ import com.maxmind.geoip2.model.CityResponse;
 @Singleton
 public class GeoIP {
 
-  private static final Logger LOG = Logger.getLogger(GeoIP.class);
+  private static final Logger LOG = LogManager.getLogger(GeoIP.class);
 
   private DatabaseReader reader;
   private boolean initialized = false;

src/main/java/net/socialgamer/cah/metrics/KafkaMetrics.java

@@ -47,7 +47,8 @@ import org.apache.kafka.common.PartitionInfo;
 import org.apache.kafka.common.config.SaslConfigs;
 import org.apache.kafka.common.config.SslConfigs;
 import org.apache.kafka.common.serialization.StringSerializer;
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 import org.json.simple.JSONValue;
 
 import com.google.inject.Inject;
@@ -73,7 +74,7 @@ public class KafkaMetrics implements Metrics {
   // 0.1: initial version
   // 0.2: added cardDealt
   private static final String metricsVersion = "0.2";
-  private static final Logger LOG = Logger.getLogger(KafkaMetrics.class);
+  private static final Logger LOG = LogManager.getLogger(KafkaMetrics.class);
 
   private final ProducerCallback callback = new ProducerCallback();
   private final String build;

src/main/java/net/socialgamer/cah/metrics/NoOpMetrics.java

@@ -27,7 +27,8 @@ import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Singleton;
 import com.maxmind.geoip2.model.CityResponse;
@@ -45,7 +46,7 @@ import net.socialgamer.cah.data.WhiteCard;
 @Singleton
 public class NoOpMetrics implements Metrics {
 
-  private static final Logger LOG = Logger.getLogger(NoOpMetrics.class);
+  private static final Logger LOG = LogManager.getLogger(NoOpMetrics.class);
 
   @Override
   public void shutdown() {

src/main/java/net/socialgamer/cah/metrics/UniqueIds.java

@@ -31,7 +31,8 @@ import java.util.concurrent.atomic.AtomicLong;
 
 import net.socialgamer.cah.CahModule.ServerStarted;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Inject;
 import com.google.inject.Provider;
@@ -51,7 +52,7 @@ import com.google.inject.Singleton;
 @Singleton
 public class UniqueIds implements Provider<String> {
 
-  private static final Logger LOG = Logger.getLogger(UniqueIds.class);
+  private static final Logger LOG = LogManager.getLogger(UniqueIds.class);
 
   private static final String hostname;
 

src/main/java/net/socialgamer/cah/task/SafeTimerTask.java

@@ -1,11 +1,12 @@
 package net.socialgamer.cah.task;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 
 public abstract class SafeTimerTask implements Runnable {
 
-  private static final Logger logger = Logger.getLogger(SafeTimerTask.class);
+  private static final Logger logger = LogManager.getLogger(SafeTimerTask.class);
 
   @Override
   public final void run() {

src/main/java/net/socialgamer/cah/util/ChatFilter.java

@@ -35,7 +35,8 @@ import java.util.WeakHashMap;
 import java.util.concurrent.TimeUnit;
 import java.util.regex.Pattern;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.common.collect.ImmutableSet;
 import com.google.inject.Inject;
@@ -51,7 +52,7 @@ import net.socialgamer.cah.data.User;
  */
 @Singleton
 public class ChatFilter {
-  private static final Logger LOG = Logger.getLogger(ChatFilter.class);
+  private static final Logger LOG = LogManager.getLogger(ChatFilter.class);
 
   private static final int DEFAULT_CHAT_FLOOD_MESSAGE_COUNT = 4;
   private static final int DEFAULT_CHAT_FLOOD_TIME_SECONDS = 30;

src/main/java/net/socialgamer/cah/util/IdCodeMangler.java

@@ -28,7 +28,8 @@ import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.util.Base64;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import com.google.inject.Inject;
 
@@ -36,7 +37,7 @@ import net.socialgamer.cah.CahModule.IdCodeSalt;
 
 
 public class IdCodeMangler {
-  private static final Logger LOG = Logger.getLogger(IdCodeMangler.class);
+  private static final Logger LOG = LogManager.getLogger(IdCodeMangler.class);
 
   private final String salt;
   private final Base64.Encoder encoder = Base64.getEncoder();