Some bug fixes

src/de/anura/core/API/Core.java

@@ -126,7 +126,7 @@ public class Core {
             Player p = (Player) P;
             if (!Core.cachedPlayerLanguage.containsKey(p)) {
                 ResultSet rs = Core.getMySql().querySelect("SELECT lang FROM players WHERE uuid = '" + p.getUniqueId().toString() + "'");
-                if (!rs.next()) {
+                if (rs == null || !rs.next()) {
                     //This is a weird bug
                     Core.cachedPlayerLanguage.put(p, "de");
                     return "de";

src/de/anura/core/API/Errors.java

@@ -4,12 +4,14 @@ import java.sql.ResultSet;
 import java.util.AbstractMap;
 import java.util.Map.Entry;
 import java.util.UUID;
+import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 
 public class Errors {
 
     /**
      * Reports an exception to the database
+     *
      * @param exc A Throwable to get the error data from
      * @param info Some additional info
      */
@@ -19,6 +21,7 @@ public class Errors {
             exc.printStackTrace();
             return;
         }
+        Bukkit.getScheduler().runTaskAsynchronously(Core.getMainClass(), () -> {
             try {
                 String message = exc.getLocalizedMessage();
                 String name = exc.getClass().toString();
@@ -43,10 +46,12 @@ public class Errors {
                 System.err.println("FATAL ERROR: Error handler generated an exception!! (" + ex.getLocalizedMessage() + ")");
                 ex.printStackTrace();
             }
+        });
     }
 
     /**
      * Reports an exception to the database
+     *
      * @param exc A Throwable to get the error from
      */
     public static void reportException(Throwable exc) {
@@ -55,9 +60,11 @@ public class Errors {
 
     /**
      * Method to report a bug
+     *
      * @param P The reporter
      * @param msg A message from the reporter
-     * @param data An array of error entries generated by {@link make(String, Object)}
+     * @param data An array of error entries generated by
+     * {@link make(String, Object)}
      */
     public static void bugReport(Player P, String msg, Entry<String, Object>... data) {
         UUID uuid = P.getUniqueId();
@@ -70,6 +77,7 @@ public class Errors {
 
     /**
      * Generates an error entry
+     *
      * @param key The key for this object
      * @param value Any object to use as value
      * @return The error entry to give to

src/de/anura/core/Setup.java

@@ -132,7 +132,7 @@ public class Setup {
                     Data.sittingPlayer.put(p, a);
                 }
             }, 600, 600);
-            Bukkit.getScheduler().runTaskTimerAsynchronously(Core.getMainClass(), AnuraCore.signs::updateServerSigns, 20 * 5, 20 * 5);
+            Bukkit.getScheduler().scheduleSyncRepeatingTask(Core.getMainClass(), AnuraCore.signs::updateServerSigns, 20 * 5, 20 * 5);
             Bukkit.getScheduler().scheduleSyncRepeatingTask(Core.getMainClass(), new VillagerTask(), 20, 20);
         } catch (Throwable e) {
             Errors.reportException(e);

src/de/anura/core/Signs.java

@@ -24,8 +24,7 @@ public class Signs implements PluginMessageListener {
                 return;
             }
             ResultSet rs = Core.getMySql().querySelect("SELECT DISTINCT value FROM coreWarpSigns WHERE type = 'server' AND server = '" + Core.getMainClass().getConfig().getString("server-name") + "'");
-            rs.last();
-            if (rs.getRow() == 0) {
+            if (rs == null || !rs.first()) {
                 return;
             }
             rs.beforeFirst();
@@ -105,7 +104,8 @@ public class Signs implements PluginMessageListener {
 
             DataInputStream in = new DataInputStream(new ByteArrayInputStream(message));
             String subchannel = in.readUTF();
-            if (subchannel.equals("PlayerCount")) {
+            switch (subchannel) {
+                case "PlayerCount":
                     String server = in.readUTF();
                     int playercount = in.readInt();
                     String sqlQ = "SELECT X,Y,Z,world FROM coreWarpSigns WHERE server = '" + Core.getMainClass().getConfig().getString("server-name") + "' AND type = 'server' AND value = '" + server + "'";
@@ -113,8 +113,7 @@ public class Signs implements PluginMessageListener {
                     rs.last();
                     if (rs.getRow() == 0) {
                         return;
-                }
-                rs.beforeFirst();
+                    }   rs.beforeFirst();
                     while (rs.next()) {
                         Boolean remove = false;
                         World w = Bukkit.getWorld(rs.getString("world"));
@@ -157,10 +156,11 @@ public class Signs implements PluginMessageListener {
                             }
                             s.update();
                         }
-                }
-            } else if (subchannel.equals("updatePermissions")) {
+                    }   break;
+                case "updatePermissions":
                     AnuraCore.perms.reload();
                     AnuraCore.perms.updateAllPlayers();
+                    break;
             }
         } catch (Throwable e) {
             Errors.reportException(e);

src/de/anura/core/commands/TeamCommands.java

@@ -180,10 +180,15 @@ public class TeamCommands implements CommandExecutor {
                 if (args.length != 1) {
                     return false;
                 }
+                try {
                     if (Float.parseFloat(args[0]) >= 10 || Float.parseFloat(args[0]) < 0) {
                         Core.statusMsg(P, "flyspeed_wrong_number", false);
                         return true;
                     }
+                } catch (NumberFormatException ex) {
+                    Core.statusMsg(P, "flyspeed_wrong_number", false);
+                    return true;
+                }
                 P.setFlySpeed(Float.parseFloat(args[0]) / 10);
                 Tools.sendStatusMsg(P, Core.getl("flyspeed_set_1", P) + " " + args[0] + Core.getl("flyspeed_set_2", P), true);
                 return true;