Use FileWriter to write the messages.

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

@@ -503,6 +503,7 @@ public class AuthMe extends JavaPlugin {
 
         // Disabled correctly
         ConsoleLogger.info("AuthMe " + this.getDescription().getVersion() + " disabled!");
+        ConsoleLogger.close();
     }
 
     // Stop/unload the server/plugin as defined in the configuration

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

@@ -6,9 +6,8 @@ import fr.xephi.authme.settings.properties.SecuritySettings;
 import fr.xephi.authme.util.StringUtils;
 
 import java.io.File;
+import java.io.FileWriter;
 import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.StandardOpenOption;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.Date;
@@ -25,6 +24,7 @@ public final class ConsoleLogger {
     private static boolean enableDebug = false;
     private static boolean useLogging = false;
     private static File logFile;
+    private static FileWriter fileWriter;
 
     private ConsoleLogger() {
     }
@@ -40,6 +40,16 @@ public final class ConsoleLogger {
     public static void setLoggingOptions(NewSetting settings) {
         ConsoleLogger.useLogging = settings.getProperty(SecuritySettings.USE_LOGGING);
         ConsoleLogger.enableDebug = !settings.getProperty(SecuritySettings.REMOVE_SPAM_FROM_CONSOLE);
+        if (useLogging) {
+            if (fileWriter == null) {
+                try {
+                    fileWriter = new FileWriter(logFile, true);
+                } catch (IOException ignored) {
+                }
+            }
+        } else {
+            close();
+        }
     }
 
     /**
@@ -49,6 +59,10 @@ public final class ConsoleLogger {
      */
     public static void info(String message) {
         logger.info(message);
+        if (useLogging) {
+            writeLog(message);
+        }
+
     }
 
     public static void debug(String message) {
@@ -83,9 +97,11 @@ public final class ConsoleLogger {
             dateTime = DATE_FORMAT.format(new Date());
         }
         try {
-            Files.write(logFile.toPath(), (dateTime + ": " + message + NEW_LINE).getBytes(),
+            fileWriter.write(dateTime);
-                StandardOpenOption.APPEND,
+            fileWriter.write(": ");
-                StandardOpenOption.CREATE);
+            fileWriter.write(message);
+            fileWriter.write(NEW_LINE);
+            fileWriter.flush();
         } catch (IOException ignored) {
         }
     }
@@ -105,10 +121,21 @@ public final class ConsoleLogger {
      * Logs a Throwable with the provided message and saves the stack trace to the log file.
      *
      * @param message The message to accompany the exception
-     * @param th The Throwable to log
+     * @param th      The Throwable to log
      */
     public static void logException(String message, Throwable th) {
         showError(message + " " + StringUtils.formatException(th));
         writeStackTrace(th);
     }
+
+    public static void close() {
+        if (fileWriter != null) {
+            try {
+                fileWriter.flush();
+                fileWriter.close();
+                fileWriter = null;
+            } catch (IOException ignored) {
+            }
+        }
+    }
 }

src/main/java/fr/xephi/authme/command/executable/authme/ReloadCommand.java

@@ -35,12 +35,12 @@ public class ReloadCommand implements ExecutableCommand {
     public void executeCommand(CommandSender sender, List<String> arguments, CommandService commandService) {
         try {
             settings.reload();
+            ConsoleLogger.setLoggingOptions(settings);
             // We do not change database type for consistency issues, but we'll output a note in the logs
             if (!settings.getProperty(DatabaseSettings.BACKEND).equals(dataSource.getType())) {
                 ConsoleLogger.info("Note: cannot change database type during /authme reload");
                 sender.sendMessage("Note: cannot change database type during /authme reload");
             }
-            ConsoleLogger.setLoggingOptions(settings);
             initializer.performReloadOnServices();
             commandService.send(sender, MessageKey.CONFIG_RELOAD_SUCCESS);
         } catch (Exception e) {