#605 Logger - name methods after their log level

- Remove separate print stacktrace method
- Log level into the log similar to console output

src/main/java/fr/xephi/authme/AuthMe.java

@@ -272,7 +272,7 @@ public class AuthMe extends JavaPlugin {
 
         // If server is using PermissionsBukkit, print a warning that some features may not be supported
         if (PermissionsSystemType.PERMISSIONS_BUKKIT.equals(permsMan.getPermissionSystem())) {
-            ConsoleLogger.showError("Warning! This server uses PermissionsBukkit for permissions. Some permissions features may not be supported!");
+            ConsoleLogger.warning("Warning! This server uses PermissionsBukkit for permissions. Some permissions features may not be supported!");
         }
 
         // Purge on start if enabled
@@ -303,13 +303,13 @@ public class AuthMe extends JavaPlugin {
     private void showSettingsWarnings() {
         // Force single session disabled
         if (!newSettings.getProperty(RestrictionSettings.FORCE_SINGLE_SESSION)) {
-            ConsoleLogger.showError("WARNING!!! By disabling ForceSingleSession, your server protection is inadequate!");
+            ConsoleLogger.warning("WARNING!!! By disabling ForceSingleSession, your server protection is inadequate!");
         }
 
         // Session timeout disabled
         if (newSettings.getProperty(PluginSettings.SESSIONS_TIMEOUT) == 0
             && newSettings.getProperty(PluginSettings.SESSIONS_ENABLED)) {
-            ConsoleLogger.showError("WARNING!!! You set session timeout to 0, this may cause security issues!");
+            ConsoleLogger.warning("WARNING!!! You set session timeout to 0, this may cause security issues!");
         }
     }
 
@@ -493,7 +493,7 @@ public class AuthMe extends JavaPlugin {
     // Stop/unload the server/plugin as defined in the configuration
     public void stopOrUnload() {
         if (Settings.isStopEnabled) {
-            ConsoleLogger.showError("THE SERVER IS GOING TO SHUT DOWN AS DEFINED IN THE CONFIGURATION!");
+            ConsoleLogger.warning("THE SERVER IS GOING TO SHUT DOWN AS DEFINED IN THE CONFIGURATION!");
             getServer().shutdown();
         } else {
             getServer().getPluginManager().disablePlugin(this);
@@ -544,7 +544,7 @@ public class AuthMe extends JavaPlugin {
                 public void run() {
                     int accounts = database.getAccountsRegistered();
                     if (accounts >= 4000) {
-                        ConsoleLogger.showError("YOU'RE USING THE SQLITE DATABASE WITH "
+                        ConsoleLogger.warning("YOU'RE USING THE SQLITE DATABASE WITH "
                             + accounts + "+ ACCOUNTS; FOR BETTER PERFORMANCE, PLEASE UPGRADE TO MYSQL!!");
                     }
                 }

src/main/java/fr/xephi/authme/ConsoleLogger.java

@@ -59,7 +59,7 @@ public final class ConsoleLogger {
     public static void info(String message) {
         logger.info(message);
         if (useLogging) {
-            writeLog(message);
+            writeLog("[INFO] " + message);
         }
 
     }
@@ -69,10 +69,10 @@ public final class ConsoleLogger {
      *
      * @param message String
      */
-    public static void showError(String message) {
+    public static void warning(String message) {
         logger.warning(message);
         if (useLogging) {
-            writeLog("ERROR: " + message);
+            writeLog("[WARN] " + message);
         }
     }
 
@@ -96,17 +96,6 @@ public final class ConsoleLogger {
         }
     }
 
-    /**
-     * Write a StackTrace into the log.
-     *
-     * @param th The Throwable whose stack trace should be logged
-     */
-    public static void writeStackTrace(Throwable th) {
-        if (useLogging) {
-            writeLog(Throwables.getStackTraceAsString(th));
-        }
-    }
-
     /**
      * Logs a Throwable with the provided message and saves the stack trace to the log file.
      *
@@ -114,8 +103,10 @@ public final class ConsoleLogger {
      * @param th      The Throwable to log
      */
     public static void logException(String message, Throwable th) {
-        showError(message + " " + StringUtils.formatException(th));
+        warning(message + " " + StringUtils.formatException(th));
-        writeStackTrace(th);
+        if (useLogging) {
+            writeLog(Throwables.getStackTraceAsString(th));
+        }
     }
 
     public static void close() {

src/main/java/fr/xephi/authme/PerformBackup.java

@@ -60,7 +60,7 @@ public class PerformBackup {
         if (!settings.getProperty(BackupSettings.ENABLED)) {
             // Print a warning if the backup was requested via command or by another plugin
             if (cause == BackupCause.COMMAND || cause == BackupCause.OTHER) {
-                ConsoleLogger.showError("Can't perform a Backup: disabled in configuration. Cause of the Backup: "
+                ConsoleLogger.warning("Can't perform a Backup: disabled in configuration. Cause of the Backup: "
                     + cause.name());
             }
             return;
@@ -76,7 +76,7 @@ public class PerformBackup {
         if (doBackup()) {
             ConsoleLogger.info("A backup has been performed successfully. Cause of the Backup: " + cause.name());
         } else {
-            ConsoleLogger.showError("Error while performing a backup! Cause of the Backup: " + cause.name());
+            ConsoleLogger.warning("Error while performing a backup! Cause of the Backup: " + cause.name());
         }
     }
 
@@ -90,7 +90,7 @@ public class PerformBackup {
             case SQLITE:
                 return fileBackup(dbName + ".db");
             default:
-                ConsoleLogger.showError("Unknown data source type '" + dataSourceType + "' for backup");
+                ConsoleLogger.warning("Unknown data source type '" + dataSourceType + "' for backup");
         }
 
         return false;
@@ -113,7 +113,7 @@ public class PerformBackup {
                     ConsoleLogger.info("Backup created successfully.");
                     return true;
                 } else {
-                    ConsoleLogger.showError("Could not create the backup! (Windows)");
+                    ConsoleLogger.warning("Could not create the backup! (Windows)");
                 }
             } catch (IOException | InterruptedException e) {
                 ConsoleLogger.logException("Error during Windows backup:", e);
@@ -128,7 +128,7 @@ public class PerformBackup {
                     ConsoleLogger.info("Backup created successfully.");
                     return true;
                 } else {
-                    ConsoleLogger.showError("Could not create the backup!");
+                    ConsoleLogger.warning("Could not create the backup!");
                 }
             } catch (IOException | InterruptedException e) {
                 ConsoleLogger.logException("Error during backup:", e);
@@ -147,8 +147,7 @@ public class PerformBackup {
             copy("plugins" + File.separator + "AuthMe" + File.separator + backend, path + ".db");
             return true;
         } catch (IOException ex) {
-            ConsoleLogger.showError("Encountered an error during file backup: " + StringUtils.formatException(ex));
+            ConsoleLogger.logException("Encountered an error during file backup:", ex);
-            ConsoleLogger.writeStackTrace(ex);
         }
         return false;
     }
@@ -166,7 +165,7 @@ public class PerformBackup {
             if (new File(windowsPath + "\\bin\\mysqldump.exe").exists()) {
                 return true;
             } else {
-                ConsoleLogger.showError("Mysql Windows Path is incorrect. Please check it");
+                ConsoleLogger.warning("Mysql Windows Path is incorrect. Please check it");
                 return false;
             }
         }

src/main/java/fr/xephi/authme/cache/backup/PlayerDataStorage.java

@@ -47,7 +47,7 @@ public class PlayerDataStorage {
 
         cacheDir = new File(dataFolder, "playerdata");
         if (!cacheDir.exists() && !cacheDir.isDirectory() && !cacheDir.mkdir()) {
-            ConsoleLogger.showError("Failed to create userdata directory.");
+            ConsoleLogger.warning("Failed to create userdata directory.");
         }
         gson = new GsonBuilder()
             .registerTypeAdapter(PlayerData.class, new PlayerDataSerializer())
@@ -115,7 +115,7 @@ public class PlayerDataStorage {
         if (file.exists()) {
             FileUtils.purgeDirectory(file);
             if (!file.delete()) {
-                ConsoleLogger.showError("Failed to remove " + player.getName() + " cache.");
+                ConsoleLogger.warning("Failed to remove " + player.getName() + " cache.");
             }
         }
     }

src/main/java/fr/xephi/authme/command/executable/email/RecoverEmailCommand.java

@@ -41,7 +41,7 @@ public class RecoverEmailCommand extends PlayerCommand {
         final String playerName = player.getName();
 
         if (!sendMailSsl.hasAllInformation()) {
-            ConsoleLogger.showError("Mail API is not set");
+            ConsoleLogger.warning("Mail API is not set");
             commandService.send(player, MessageKey.INCOMPLETE_EMAIL_SETTINGS);
             return;
         }
@@ -63,7 +63,7 @@ public class RecoverEmailCommand extends PlayerCommand {
                 return;
             }
             if (StringUtils.isEmpty(commandService.getProperty(EmailSettings.MAIL_ACCOUNT))) {
-                ConsoleLogger.showError("No mail account set in settings");
+                ConsoleLogger.warning("No mail account set in settings");
                 commandService.send(player, MessageKey.ERROR);
                 return;
             }

src/main/java/fr/xephi/authme/command/executable/register/RegisterCommand.java

@@ -69,7 +69,7 @@ public class RegisterCommand extends PlayerCommand {
     private void handleEmailRegistration(Player player, List<String> arguments) {
         if (!sendMailSsl.hasAllInformation()) {
             commandService.send(player, MessageKey.INCOMPLETE_EMAIL_SETTINGS);
-            ConsoleLogger.showError("Cannot register player '" + player.getName() + "': no email or password is set "
+            ConsoleLogger.warning("Cannot register player '" + player.getName() + "': no email or password is set "
                 + "to send emails from. Please adjust your config at " + EmailSettings.MAIL_ACCOUNT.getPath());
             return;
         }

src/main/java/fr/xephi/authme/converter/CrazyLoginConverter.java

@@ -61,7 +61,7 @@ public class CrazyLoginConverter implements Converter {
             }
             ConsoleLogger.info("CrazyLogin database has been imported correctly");
         } catch (IOException ex) {
-            ConsoleLogger.showError("Can't open the crazylogin database file! Does it exist?");
+            ConsoleLogger.warning("Can't open the crazylogin database file! Does it exist?");
             ConsoleLogger.logException("Encountered", ex);
         }
     }

src/main/java/fr/xephi/authme/converter/ForceFlatToSqlite.java

@@ -43,7 +43,7 @@ public class ForceFlatToSqlite {
         }
 
         if (!skippedPlayers.isEmpty()) {
-            ConsoleLogger.showError("Warning: skipped conversion for players which were already in SQLite: "
+            ConsoleLogger.warning("Warning: skipped conversion for players which were already in SQLite: "
                 + StringUtils.join(", ", skippedPlayers));
         }
         ConsoleLogger.info("Database successfully converted from " + source.getClass().getSimpleName()

src/main/java/fr/xephi/authme/converter/RakamakConverter.java

@@ -89,7 +89,7 @@ public class RakamakConverter implements Converter {
             ConsoleLogger.info("Rakamak database has been imported correctly");
             sender.sendMessage("Rakamak database has been imported correctly");
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             sender.sendMessage("Can't open the rakamak database file! Does it exist?");
         }
     }

src/main/java/fr/xephi/authme/datasource/CacheDataSource.java

@@ -160,7 +160,7 @@ public class CacheDataSource implements DataSource {
         try {
             executorService.awaitTermination(5, TimeUnit.SECONDS);
         } catch (InterruptedException e) {
-            ConsoleLogger.writeStackTrace(e);
+            ConsoleLogger.logException("Could not close executor service:", e);
         }
     }
 

src/main/java/fr/xephi/authme/datasource/FlatFile.java

@@ -50,7 +50,7 @@ public class FlatFile implements DataSource {
         } catch (IOException e) {
             ConsoleLogger.logException("Cannot open flatfile", e);
             if (Settings.isStopEnabled) {
-                ConsoleLogger.showError("Can't use FLAT FILE... SHUTDOWN...");
+                ConsoleLogger.warning("Can't use FLAT FILE... SHUTDOWN...");
                 instance.getServer().shutdown();
             }
             if (!Settings.isStopEnabled) {
@@ -82,7 +82,7 @@ public class FlatFile implements DataSource {
                 }
             }
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return false;
         } finally {
             silentClose(br);
@@ -109,7 +109,7 @@ public class FlatFile implements DataSource {
             bw = new BufferedWriter(new FileWriter(source, true));
             bw.write(auth.getNickname() + ":" + auth.getPassword().getHash() + ":" + auth.getIp() + ":" + auth.getLastLogin() + ":" + auth.getQuitLocX() + ":" + auth.getQuitLocY() + ":" + auth.getQuitLocZ() + ":" + auth.getWorld() + ":" + auth.getEmail() + "\n");
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return false;
         } finally {
             silentClose(bw);
@@ -145,7 +145,7 @@ public class FlatFile implements DataSource {
                 }
             }
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return false;
         } finally {
             silentClose(br);
@@ -179,7 +179,7 @@ public class FlatFile implements DataSource {
                 }
             }
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return false;
         } finally {
             silentClose(br);
@@ -216,7 +216,7 @@ public class FlatFile implements DataSource {
                 }
             }
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return false;
         } finally {
             silentClose(br);
@@ -246,7 +246,7 @@ public class FlatFile implements DataSource {
                 }
             }
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return list;
         } finally {
             silentClose(br);
@@ -279,7 +279,7 @@ public class FlatFile implements DataSource {
                 bw.write(l + "\n");
             }
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return;
         } finally {
             silentClose(br);
@@ -309,7 +309,7 @@ public class FlatFile implements DataSource {
                 bw.write(l + "\n");
             }
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return false;
         } finally {
             silentClose(br);
@@ -331,7 +331,7 @@ public class FlatFile implements DataSource {
                 }
             }
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return null;
         } finally {
             silentClose(br);
@@ -364,10 +364,10 @@ public class FlatFile implements DataSource {
                 }
             }
         } catch (FileNotFoundException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return false;
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return false;
         } finally {
             if (br != null) {
@@ -399,10 +399,10 @@ public class FlatFile implements DataSource {
             }
             return countIp;
         } catch (FileNotFoundException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return new ArrayList<>();
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return new ArrayList<>();
         } finally {
             if (br != null) {
@@ -429,7 +429,7 @@ public class FlatFile implements DataSource {
             }
             return countEmail;
         } catch (IOException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
         } finally {
             if (br != null) {
                 try {
@@ -473,7 +473,7 @@ public class FlatFile implements DataSource {
                 result++;
             }
         } catch (Exception ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return result;
         } finally {
             silentClose(br);

src/main/java/fr/xephi/authme/datasource/MySQL.java

@@ -52,14 +52,14 @@ public class MySQL implements DataSource {
             this.setConnectionArguments();
         } catch (RuntimeException e) {
             if (e instanceof IllegalArgumentException) {
-                ConsoleLogger.showError("Invalid database arguments! Please check your configuration!");
+                ConsoleLogger.warning("Invalid database arguments! Please check your configuration!");
-                ConsoleLogger.showError("If this error persists, please report it to the developer!");
+                ConsoleLogger.warning("If this error persists, please report it to the developer!");
             }
             if (e instanceof PoolInitializationException) {
-                ConsoleLogger.showError("Can't initialize database connection! Please check your configuration!");
+                ConsoleLogger.warning("Can't initialize database connection! Please check your configuration!");
-                ConsoleLogger.showError("If this error persists, please report it to the developer!");
+                ConsoleLogger.warning("If this error persists, please report it to the developer!");
             }
-            ConsoleLogger.showError("Can't use the Hikari Connection Pool! Please, report this error to the developer!");
+            ConsoleLogger.warning("Can't use the Hikari Connection Pool! Please, report this error to the developer!");
             throw e;
         }
 
@@ -69,7 +69,7 @@ public class MySQL implements DataSource {
         } catch (SQLException e) {
             close();
             ConsoleLogger.logException("Can't initialize the MySQL database:", e);
-            ConsoleLogger.showError("Please check your database settings in the config.yml file!");
+            ConsoleLogger.warning("Please check your database settings in the config.yml file!");
             throw e;
         }
     }
@@ -879,7 +879,7 @@ public class MySQL implements DataSource {
         final int columnType;
         try (ResultSet rs = metaData.getColumns(null, null, tableName, col.LAST_LOGIN)) {
             if (!rs.next()) {
-                ConsoleLogger.showError("Could not get LAST_LOGIN meta data. This should never happen!");
+                ConsoleLogger.warning("Could not get LAST_LOGIN meta data. This should never happen!");
                 return;
             }
             columnType = rs.getInt("DATA_TYPE");

src/main/java/fr/xephi/authme/datasource/SQLite.java

@@ -157,7 +157,7 @@ public class SQLite implements DataSource {
             rs = pst.executeQuery();
             return rs.next();
         } catch (SQLException ex) {
-            ConsoleLogger.showError(ex.getMessage());
+            ConsoleLogger.warning(ex.getMessage());
             return false;
         } finally {
             close(rs);
@@ -212,7 +212,7 @@ public class SQLite implements DataSource {
             HashedPassword password = auth.getPassword();
             if (col.SALT.isEmpty()) {
                 if (!StringUtils.isEmpty(auth.getPassword().getSalt())) {
-                    ConsoleLogger.showError("Warning! Detected hashed password with separate salt but the salt column "
+                    ConsoleLogger.warning("Warning! Detected hashed password with separate salt but the salt column "
                         + "is not set in the config!");
                 }
                 pst = con.prepareStatement("INSERT INTO " + tableName + "(" + col.NAME + "," + col.PASSWORD +

src/main/java/fr/xephi/authme/listener/AuthMeServerListener.java

@@ -53,7 +53,7 @@ public class AuthMeServerListener implements Listener {
 
         if (pluginName.equalsIgnoreCase("ProtocolLib")) {
             protocolLibService.disable();
-            ConsoleLogger.showError("ProtocolLib has been disabled, unhooking packet adapters!");
+            ConsoleLogger.warning("ProtocolLib has been disabled, unhooking packet adapters!");
         }
     }
 

src/main/java/fr/xephi/authme/listener/protocollib/AuthMeTabCompletePacketAdapter.java

@@ -24,7 +24,7 @@ class AuthMeTabCompletePacketAdapter extends PacketAdapter {
                     event.setCancelled(true);
                 }
             } catch (FieldAccessException e) {
-                ConsoleLogger.showError("Couldn't access field.");
+                ConsoleLogger.warning("Couldn't access field.");
             }
         }
     }

src/main/java/fr/xephi/authme/listener/protocollib/ProtocolLibService.java

@@ -42,11 +42,11 @@ public class ProtocolLibService implements SettingsDependent {
         // Check if ProtocolLib is enabled on the server.
         if (!plugin.getServer().getPluginManager().isPluginEnabled("ProtocolLib")) {
             if (protectInvBeforeLogin) {
-                ConsoleLogger.showError("WARNING! The protectInventory feature requires ProtocolLib! Disabling it...");
+                ConsoleLogger.warning("WARNING! The protectInventory feature requires ProtocolLib! Disabling it...");
             }
             
             if (denyTabCompleteBeforeLogin) {
-                ConsoleLogger.showError("WARNING! The denyTabComplete feature requires ProtocolLib! Disabling it...");
+                ConsoleLogger.warning("WARNING! The denyTabComplete feature requires ProtocolLib! Disabling it...");
             }
 
             this.isEnabled = false;

src/main/java/fr/xephi/authme/mail/SendMailSSL.java

@@ -58,7 +58,7 @@ public class SendMailSSL {
      */
     public void sendPasswordMail(final PlayerAuth auth, final String newPass) {
         if (!hasAllInformation()) {
-            ConsoleLogger.showError("Cannot perform email registration: not all email settings are complete");
+            ConsoleLogger.warning("Cannot perform email registration: not all email settings are complete");
             return;
         }
 

src/main/java/fr/xephi/authme/output/Messages.java

@@ -75,7 +75,7 @@ public class Messages implements SettingsDependent {
         String message = configuration.getString(code);
 
         if (message == null) {
-            ConsoleLogger.showError("Error getting message with key '" + code + "'. "
+            ConsoleLogger.warning("Error getting message with key '" + code + "'. "
                 + "Please verify your config file at '" + fileName + "'");
             return formatMessage(getDefault(code));
         }
@@ -112,7 +112,7 @@ public class Messages implements SettingsDependent {
                 message = message.replace(tags[i], replacements[i]);
             }
         } else {
-            ConsoleLogger.showError("Invalid number of replacements for message key '" + key + "'");
+            ConsoleLogger.warning("Invalid number of replacements for message key '" + key + "'");
         }
         return message;
     }

src/main/java/fr/xephi/authme/permission/AuthGroupHandler.java

@@ -45,7 +45,7 @@ public class AuthGroupHandler {
 
         // Make sure group support is available
         if (!permissionsManager.hasGroupSupport()) {
-            ConsoleLogger.showError("The current permissions system doesn't have group support, unable to set group!");
+            ConsoleLogger.warning("The current permissions system doesn't have group support, unable to set group!");
             return false;
         }
 

src/main/java/fr/xephi/authme/process/email/AsyncAddEmail.java

@@ -47,7 +47,7 @@ public class AsyncAddEmail implements AsynchronousProcess {
                     playerCache.updatePlayer(auth);
                     service.send(player, MessageKey.EMAIL_ADDED_SUCCESS);
                 } else {
-                    ConsoleLogger.showError("Could not save email for player '" + player + "'");
+                    ConsoleLogger.warning("Could not save email for player '" + player + "'");
                     service.send(player, MessageKey.ERROR);
                 }
             }

src/main/java/fr/xephi/authme/process/login/AsynchronousLogin.java

@@ -204,7 +204,7 @@ public class AsynchronousLogin implements AsynchronousProcess {
                 }
             }
         } else {
-            ConsoleLogger.showError("Player " + name + " wasn't online during login process, aborted... ");
+            ConsoleLogger.warning("Player " + name + " wasn't online during login process, aborted... ");
         }
     }
 

src/main/java/fr/xephi/authme/security/crypts/BCRYPT.java

@@ -38,7 +38,7 @@ public class BCRYPT implements EncryptionMethod {
         try {
             return hash.getHash().length() > 3 && BCryptService.checkpw(password, hash.getHash());
         } catch (IllegalArgumentException e) {
-            ConsoleLogger.showError("Bcrypt checkpw() returned " + StringUtils.formatException(e));
+            ConsoleLogger.warning("Bcrypt checkpw() returned " + StringUtils.formatException(e));
         }
         return false;
     }

src/main/java/fr/xephi/authme/security/crypts/CryptPBKDF2Django.java

@@ -32,7 +32,7 @@ public class CryptPBKDF2Django extends HexSaltedMethod {
         try {
             iterations = Integer.parseInt(line[1]);
         } catch (NumberFormatException e) {
-            ConsoleLogger.showError("Could not read number of rounds for CryptPBKDF2Django:"
+            ConsoleLogger.warning("Could not read number of rounds for CryptPBKDF2Django:"
                 + StringUtils.formatException(e));
             return false;
         }

src/main/java/fr/xephi/authme/security/crypts/IPB4.java

@@ -36,7 +36,7 @@ public class IPB4 implements EncryptionMethod {
         try {
             return hash.getHash().length() > 3 && BCryptService.checkpw(password, hash.getHash());
         } catch (IllegalArgumentException e) {
-            ConsoleLogger.showError("Bcrypt checkpw() returned " + StringUtils.formatException(e));
+            ConsoleLogger.warning("Bcrypt checkpw() returned " + StringUtils.formatException(e));
         }
         return false;
     }

src/main/java/fr/xephi/authme/security/crypts/XFBCRYPT.java

@@ -31,7 +31,7 @@ public class XFBCRYPT implements EncryptionMethod {
         try {
             return hash.getHash().length() > 3 && BCryptService.checkpw(password, hash.getHash());
         } catch (IllegalArgumentException e) {
-            ConsoleLogger.showError("XfBCrypt checkpw() returned " + StringUtils.formatException(e));
+            ConsoleLogger.warning("XfBCrypt checkpw() returned " + StringUtils.formatException(e));
         }
         return false;
     }

src/main/java/fr/xephi/authme/settings/propertymap/Node.java

@@ -77,7 +77,7 @@ final class Node {
         }
 
         if (commonNode == null) {
-            ConsoleLogger.showError("Could not find common node for '" + fullPath1 + "' at index " + commonCount);
+            ConsoleLogger.warning("Could not find common node for '" + fullPath1 + "' at index " + commonCount);
             return fullPath1.compareTo(fullPath2); // fallback
         } else if (commonCount >= path1.length || commonCount >= path2.length) {
             return Integer.compare(path1.length, path2.length);

src/main/java/fr/xephi/authme/task/PurgeService.java

@@ -76,7 +76,7 @@ public class PurgeService implements Reloadable {
         if (!settings.getProperty(PurgeSettings.USE_AUTO_PURGE)) {
             return;
         } else if (daysBeforePurge <= 0) {
-            ConsoleLogger.showError("Did not run auto purge: configured days before purging must be positive");
+            ConsoleLogger.warning("Did not run auto purge: configured days before purging must be positive");
             return;
         }
 

src/main/java/fr/xephi/authme/util/BukkitService.java

@@ -190,7 +190,7 @@ public class BukkitService {
                 return Arrays.asList((Player[]) obj);
             } else {
                 String type = (obj == null) ? "null" : obj.getClass().getName();
-                ConsoleLogger.showError("Unknown list of online players of type " + type);
+                ConsoleLogger.warning("Unknown list of online players of type " + type);
             }
         } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
             ConsoleLogger.logException("Could not retrieve list of online players:", e);
@@ -230,7 +230,7 @@ public class BukkitService {
             Method method = Bukkit.class.getDeclaredMethod("getOnlinePlayers");
             return method.getReturnType() == Collection.class;
         } catch (NoSuchMethodException e) {
-            ConsoleLogger.showError("Error verifying if getOnlinePlayers is a collection! Method doesn't exist");
+            ConsoleLogger.warning("Error verifying if getOnlinePlayers is a collection! Method doesn't exist");
         }
         return false;
     }

src/main/java/fr/xephi/authme/util/FileUtils.java

@@ -30,7 +30,7 @@ public class FileUtils {
         if (destinationFile.exists()) {
             return true;
         } else if (!destinationFile.getParentFile().exists() && !destinationFile.getParentFile().mkdirs()) {
-            ConsoleLogger.showError("Cannot create parent directories for '" + destinationFile + "'");
+            ConsoleLogger.warning("Cannot create parent directories for '" + destinationFile + "'");
             return false;
         }
 
@@ -38,7 +38,7 @@ public class FileUtils {
         final String normalizedPath = resourcePath.replace("\\", "/");
         try (InputStream is = AuthMe.class.getClassLoader().getResourceAsStream(normalizedPath)) {
             if (is == null) {
-                ConsoleLogger.showError(format("Cannot copy resource '%s' to file '%s': cannot load resource",
+                ConsoleLogger.warning(format("Cannot copy resource '%s' to file '%s': cannot load resource",
                     resourcePath, destinationFile.getPath()));
             } else {
                 Files.copy(is, destinationFile.toPath());

src/main/java/fr/xephi/authme/util/GeoLiteAPI.java

@@ -65,7 +65,7 @@ public class GeoLiteAPI {
                 }
             } else {
                 if (!dataFile.delete()) {
-                    ConsoleLogger.showError("Failed to delete GeoLiteAPI database");
+                    ConsoleLogger.warning("Failed to delete GeoLiteAPI database");
                 }
             }
         }

src/main/java/fr/xephi/authme/util/MigrationService.java

@@ -34,14 +34,14 @@ public final class MigrationService {
     public static void changePlainTextToSha256(NewSetting settings, DataSource dataSource,
                                                SHA256 authmeSha256) {
         if (HashAlgorithm.PLAINTEXT == settings.getProperty(SecuritySettings.PASSWORD_HASH)) {
-            ConsoleLogger.showError("Your HashAlgorithm has been detected as plaintext and is now deprecated;"
+            ConsoleLogger.warning("Your HashAlgorithm has been detected as plaintext and is now deprecated;"
                 + " it will be changed and hashed now to the AuthMe default hashing method");
-            ConsoleLogger.showError("Don't stop your server; wait for the conversion to have been completed!");
+            ConsoleLogger.warning("Don't stop your server; wait for the conversion to have been completed!");
             List<PlayerAuth> allAuths = dataSource.getAllAuths();
             for (PlayerAuth auth : allAuths) {
                 String hash = auth.getPassword().getHash();
                 if (hash.startsWith("$SHA$")) {
-                    ConsoleLogger.showError("Skipping conversion for " + auth.getNickname() + "; detected SHA hash");
+                    ConsoleLogger.warning("Skipping conversion for " + auth.getNickname() + "; detected SHA hash");
                 } else {
                     HashedPassword hashedPassword = authmeSha256.computeHash(hash, auth.getNickname());
                     auth.setPassword(hashedPassword);
@@ -63,7 +63,7 @@ public final class MigrationService {
      */
     public static DataSource convertFlatfileToSqlite(NewSetting settings, DataSource dataSource) {
         if (DataSourceType.FILE == settings.getProperty(DatabaseSettings.BACKEND)) {
-            ConsoleLogger.showError("FlatFile backend has been detected and is now deprecated; it will be changed "
+            ConsoleLogger.warning("FlatFile backend has been detected and is now deprecated; it will be changed "
                 + "to SQLite... Connection will be impossible until conversion is done!");
             FlatFile flatFile = (FlatFile) dataSource;
             try {

src/main/java/fr/xephi/authme/util/Utils.java

@@ -51,7 +51,7 @@ public final class Utils {
         try {
             return Pattern.compile(pattern);
         } catch (Exception e) {
-            ConsoleLogger.showError("Failed to compile pattern '" + pattern + "' - defaulting to allowing everything");
+            ConsoleLogger.warning("Failed to compile pattern '" + pattern + "' - defaulting to allowing everything");
             return Pattern.compile(".*?");
         }
     }