Updated access modifiers, fixed all warnings.

pom.xml

@@ -11,6 +11,8 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>1.7</maven.compiler.source>
+        <maven.compiler.target>1.7</maven.compiler.target>
     </properties>
 
     <!-- License -->

src/de/craftinc/gates/Gate.java

@@ -29,18 +29,23 @@ import java.util.*;
 
 public class Gate implements ConfigurationSerializable {
     protected Location location; /* saving both location and gateBlockLocations is redundant but makes it easy to allow players to reshape gates */
-    protected Set<Location> gateBlockLocations = new HashSet<Location>(); /* Locations of the blocks inside the gate */
+    private Set<Location> gateBlockLocations = new HashSet<>(); /* Locations of the blocks inside the gate */
-    protected Set<Block> gateFrameBlocks = new HashSet<Block>();
+
+    private Set<Block> gateFrameBlocks = new HashSet<>();
 
     protected Location exit;
 
-    protected boolean isHidden = false;
+    private boolean isHidden = false;
-    protected boolean isOpen = false;
+    private boolean isOpen = false;
 
-    protected boolean allowsVehicles = true;
+    private boolean allowsVehicles = true;
 
     protected String id;
 
+    public static String getGateBlocksKey() {
+        return gateBlocksKey;
+    }
+
     /**
      * You should never create two gates with the same 'id'. Also see 'setId(String id)'.
      *
@@ -77,12 +82,11 @@ public class Gate implements ConfigurationSerializable {
             findPortalBlocks();
             validate();
         } else {
-            this.gateBlockLocations = new HashSet<Location>();
+            this.gateBlockLocations = new HashSet<>();
-            this.gateFrameBlocks = new HashSet<Block>();
+            this.gateFrameBlocks = new HashSet<>();
         }
     }
 
-
     /**
      * @return This method might return a 'null' value.
      */
@@ -90,7 +94,6 @@ public class Gate implements ConfigurationSerializable {
         return exit;
     }
 
-
     /**
      * @param exit Supplying 'null' is permitted.
      * @throws Exception An exception will be thrown if 'null' data is supplied and this gate is open. Note that the
@@ -102,7 +105,6 @@ public class Gate implements ConfigurationSerializable {
         validate();
     }
 
-
     /**
      * @return This method will never return 'null'.
      */
@@ -110,7 +112,6 @@ public class Gate implements ConfigurationSerializable {
         return id;
     }
 
-
     /**
      * Every gate should have an unique 'id'. You should therefore check if another gate with the same 'id' exists.
      * Note that this method will not check if another gate with the same 'id' exists!
@@ -125,23 +126,19 @@ public class Gate implements ConfigurationSerializable {
         this.id = id.toLowerCase();
     }
 
-
     public boolean isHidden() {
         return isHidden;
     }
 
-
     public void setHidden(boolean isHidden) throws Exception {
         this.isHidden = isHidden;
         this.validate();
     }
 
-
     public boolean isOpen() {
         return isOpen;
     }
 
-
     public void setOpen(boolean isOpen) throws Exception {
         if (isOpen && !this.isOpen) {
             findPortalBlocks();
@@ -151,17 +148,14 @@ public class Gate implements ConfigurationSerializable {
         validate();
     }
 
-
     public void setAllowsVehicles(boolean allowsVehicles) {
         this.allowsVehicles = allowsVehicles;
     }
 
-
     public boolean getAllowsVehicles() {
         return this.allowsVehicles;
     }
 
-
     /**
      * @return Will never return 'null' but might return an empty Set.
      */
@@ -169,7 +163,6 @@ public class Gate implements ConfigurationSerializable {
         return gateBlockLocations;
     }
 
-
     /**
      * @return Will never return 'null' but might return an empty Set.
      */
@@ -177,9 +170,8 @@ public class Gate implements ConfigurationSerializable {
         return gateFrameBlocks;
     }
 
-
+    private void findPortalBlocks() {
-    protected void findPortalBlocks() {
+        gateBlockLocations = new HashSet<>();
-        gateBlockLocations = new HashSet<Location>();
         Set<Block> gateBlocks = FloodUtil.getGatePortalBlocks(location.getBlock());
 
         if (gateBlocks != null) {
@@ -191,35 +183,34 @@ public class Gate implements ConfigurationSerializable {
         gateFrameBlocks = FloodUtil.getFrame(gateBlocks);
     }
 
-
     /**
      * Checks if values attributes do add up; will close gate on wrong values.
      */
-    public void validate() throws Exception {
+    void validate() throws Exception {
         if (!isOpen) {
             return;
         }
 
         if (location == null) {
             isOpen = false;
-            this.gateBlockLocations = new HashSet<Location>();
+            this.gateBlockLocations = new HashSet<>();
-            this.gateFrameBlocks = new HashSet<Block>();
+            this.gateFrameBlocks = new HashSet<>();
 
             throw new Exception("Gate got closed. It has no location.");
         }
 
         if (exit == null) {
             isOpen = false;
-            this.gateBlockLocations = new HashSet<Location>();
+            this.gateBlockLocations = new HashSet<>();
-            this.gateFrameBlocks = new HashSet<Block>();
+            this.gateFrameBlocks = new HashSet<>();
 
             throw new Exception("Gate got closed. It has no exit.");
         }
 
         if (gateBlockLocations.size() == 0) {
             isOpen = false;
-            this.gateBlockLocations = new HashSet<Location>();
+            this.gateBlockLocations = new HashSet<>();
-            this.gateFrameBlocks = new HashSet<Block>();
+            this.gateFrameBlocks = new HashSet<>();
 
             throw new Exception("Gate got closed. The frame is missing or broken. (no gate blocks)");
         }
@@ -230,8 +221,8 @@ public class Gate implements ConfigurationSerializable {
 
                 if (b.getType() == Material.AIR) {
                     isOpen = false;
-                    this.gateBlockLocations = new HashSet<Location>();
+                    this.gateBlockLocations = new HashSet<>();
-                    this.gateFrameBlocks = new HashSet<Block>();
+                    this.gateFrameBlocks = new HashSet<>();
 
                     throw new Exception("Gate got closed. The frame is missing or broken. (missing frame block(s))");
                 }
@@ -243,17 +234,17 @@ public class Gate implements ConfigurationSerializable {
     /*
      * INTERFACE: ConfigurationSerializable
      */
-    static protected String idKey = "id";
+    static private String idKey = "id";
-    static protected String locationKey = "location";
+    static private String locationKey = "location";
-    static protected String gateBlocksKey = "gateBlocks";
+    static private String gateBlocksKey = "gateBlocks";
-    static protected String exitKey = "exit";
+    static private String exitKey = "exit";
-    static protected String isHiddenKey = "hidden";
+    static private String isHiddenKey = "hidden";
-    static protected String isOpenKey = "open";
+    static private String isOpenKey = "open";
-    static protected String locationYawKey = "locationYaw";
+    static private String locationYawKey = "locationYaw";
-    static protected String locationPitchKey = "locationPitch";
+    static private String locationPitchKey = "locationPitch";
-    static protected String exitYawKey = "exitYaw";
+    static private String exitYawKey = "exitYaw";
-    static protected String exitPitchKey = "exitPitch";
+    static private String exitPitchKey = "exitPitch";
-    static protected String allowsVehiclesKey = "allowsVehiclesKey";
+    static private String allowsVehiclesKey = "allowsVehiclesKey";
 
 
     @SuppressWarnings("unchecked")
@@ -281,7 +272,7 @@ public class Gate implements ConfigurationSerializable {
                 allowsVehicles = (Boolean) map.get(allowsVehiclesKey);
             }
 
-            gateBlockLocations = new HashSet<Location>();
+            gateBlockLocations = new HashSet<>();
             List<Map<String, Object>> serializedGateBlocks = (List<Map<String, Object>>) map.get(gateBlocksKey);
 
             for (Map<String, Object> sgb : serializedGateBlocks) {
@@ -305,7 +296,7 @@ public class Gate implements ConfigurationSerializable {
 
 
     public Map<String, Object> serialize() {
-        Map<String, Object> retVal = new HashMap<String, Object>();
+        Map<String, Object> retVal = new HashMap<>();
 
         retVal.put(idKey, id);
         retVal.put(locationKey, LocationUtil.serializeLocation(location));
@@ -324,7 +315,7 @@ public class Gate implements ConfigurationSerializable {
             retVal.put(locationYawKey, location.getYaw());
         }
 
-        List<Map<String, Object>> serializedGateBlocks = new ArrayList<Map<String, Object>>();
+        List<Map<String, Object>> serializedGateBlocks = new ArrayList<>();
 
         for (Location l : gateBlockLocations) {
             serializedGateBlocks.add(LocationUtil.serializeLocation(l));

src/de/craftinc/gates/GateChangeListener.java

@@ -20,11 +20,11 @@ package de.craftinc.gates;
 import java.util.Map;
 
 public interface GateChangeListener {
-    public static final String newGate = "GateChangeListener-newGate"; // value will be null
+    String newGate = "GateChangeListener-newGate"; // value will be null
-    public static final String removedGate = "GateChangeListener-removedGate"; // value will be null
+    String removedGate = "GateChangeListener-removedGate"; // value will be null
-    public static final String changedID = "GateChangeListener-changedID"; // value will be the old ID
+    String changedID = "GateChangeListener-changedID"; // value will be the old ID
-    public static final String changedLocation = "GateChangeListener-changedLocation"; // value will the old location
+    String changedLocation = "GateChangeListener-changedLocation"; // value will the old location
-    public static final String changedExit = "GateChangeListener-changedExit"; // value will be the old exit
+    String changedExit = "GateChangeListener-changedExit"; // value will be the old exit
 
-    public void gateChangedHandler(final Gate g, final Map<String, Object> changeSet);
+    void gateChangedHandler(final Gate g, final Map<String, Object> changeSet);
 }

src/de/craftinc/gates/GatesManager.java

@@ -36,47 +36,30 @@ import de.craftinc.gates.util.SimpleLocation;
 
 
 public class GatesManager {
-    protected File gatesConfigFile;
-    protected FileConfiguration gatesConfig;
-    protected static final String gatesPath = "gates"; // path to gates inside the yaml file
-    protected static final String storageVersionPath = "version";
-    protected static final int storageVersion = 2;
-
-    protected int chunkRadius;
-
-    protected Map<String, Gate> gatesById;
-    protected Map<SimpleChunk, Set<Gate>> gatesByChunk;
-    protected Map<SimpleLocation, Gate> gatesByLocation;
-    protected Map<SimpleLocation, Gate> gatesByFrameLocation;
-
     protected List<Gate> gates;
 
-    protected boolean storageFileIsInvalid = false;
+    private static final String gatesPath = "gates"; // path to gates inside the yaml file
-
+    private static final String storageVersionPath = "version";
-    protected Set<GateChangeListener> changeListeners = new HashSet<GateChangeListener>();
+    private static final int storageVersion = 2;
-
-
-    public void addGateChangeListener(GateChangeListener listener) {
-        this.changeListeners.add(listener);
-    }
-
-
-    public void removeGateChangeListener(GateChangeListener listener) {
-        this.changeListeners.remove(listener);
-    }
 
+    private File gatesConfigFile;
+    private FileConfiguration gatesConfig;
+    private int chunkRadius;
+    private Map<String, Gate> gatesById;
+    private Map<SimpleChunk, Set<Gate>> gatesByChunk;
+    private Map<SimpleLocation, Gate> gatesByLocation;
+    private Map<SimpleLocation, Gate> gatesByFrameLocation;
+    private boolean storageFileIsInvalid = false;
 
     public Gate getGateWithId(final String id) {
         return gatesById.get(id.toLowerCase());
     }
 
-
     public Set<Gate> getNearbyGates(final Chunk chunk) {
         SimpleChunk simpleChunk = new SimpleChunk(chunk);
         return gatesByChunk.get(simpleChunk);
     }
 
-
     /**
      * Returns the closest gate.
      *
@@ -138,7 +121,7 @@ public class GatesManager {
 
 
     @SuppressWarnings("unchecked")
-    public boolean loadGatesFromDisk() {
+    boolean loadGatesFromDisk() {
         this.gatesConfigFile = new File(Plugin.getPlugin().getDataFolder(), "gates.yml");
 
         if (!this.gatesConfigFile.exists()) {
@@ -168,7 +151,7 @@ public class GatesManager {
         this.gates = (List<Gate>) gatesConfig.getList(gatesPath);
 
         if (this.gates == null) {
-            this.gates = new ArrayList<Gate>();
+            this.gates = new ArrayList<>();
         }
 
         for (Object o : this.gates) {
@@ -220,8 +203,7 @@ public class GatesManager {
         return true;
     }
 
-
+    private int getChunkRadius() {
-    protected int getChunkRadius() {
         if (this.chunkRadius == 0) {
             this.chunkRadius = Plugin.getPlugin().getConfig().getInt(ConfigurationUtil.confPlayerGateBlockUpdateRadiusKey);
             this.chunkRadius = this.chunkRadius >> 4;
@@ -230,97 +212,80 @@ public class GatesManager {
         return this.chunkRadius;
     }
 
-
+    private void fillGatesById() {
-    protected void fillGatesById() {
+        gatesById = new HashMap<>((int) (gates.size() * 1.25));
-        gatesById = new HashMap<String, Gate>((int) (gates.size() * 1.25));
 
         for (Gate g : gates) {
             this.addGateWithId(g);
         }
     }
 
-
+    private void fillGatesByChunk() {
-    protected void fillGatesByChunk() {
+        HashSet<SimpleChunk> chunksUsedByGates = new HashSet<>();
-        HashSet<SimpleChunk> chunksUsedByGates = new HashSet<SimpleChunk>();
 
         for (Gate g : gates) {
-
             if (g.getLocation() != null) {
-
                 Chunk c = g.getLocation().getChunk();
 
                 int x = c.getX();
                 int z = c.getZ();
 
                 for (int i = x - getChunkRadius(); i < x + getChunkRadius(); i++) {
-
                     for (int j = z - getChunkRadius(); j < z + getChunkRadius(); j++) {
-
                         chunksUsedByGates.add(new SimpleChunk(i, j, c.getWorld()));
                     }
                 }
             }
         }
 
-        gatesByChunk = new HashMap<SimpleChunk, Set<Gate>>((int) (chunksUsedByGates.size() * 1.25));
+        gatesByChunk = new HashMap<>((int) (chunksUsedByGates.size() * 1.25));
 
         for (Gate g : gates) {
             this.addGateByChunk(g);
         }
     }
 
-
+    private void fillGatesByLocation() {
-    protected void fillGatesByLocation() {
+        Set<Location> gateBlocks = new HashSet<>();
-        Set<Location> gateBlocks = new HashSet<Location>();
 
         for (Gate g : gates) {
-
             for (Location l : g.getGateBlockLocations()) {
                 gateBlocks.add(l);
-
+                Location headLocation = l.clone().add(0, 1, 0);
-                Location headLocation = new Location(l.getWorld(),
-                        l.getX(),
-                        l.getY() + 1,
-                        l.getZ());
-
                 gateBlocks.add(headLocation);
             }
         }
 
-        gatesByLocation = new HashMap<SimpleLocation, Gate>((int) (gateBlocks.size() * 1.25));
+        gatesByLocation = new HashMap<>((int) (gateBlocks.size() * 1.25));
 
         for (Gate g : gates) {
             this.addGateByLocations(g);
         }
     }
 
-
+    private void fillGatesByFrameLocation() {
-    protected void fillGatesByFrameLocation() {
         int numFrameBlocks = 0;
 
         for (Gate g : gates) {
-            numFrameBlocks += g.gateFrameBlocks.size();
+            numFrameBlocks += g.getGateFrameBlocks().size();
         }
 
-        gatesByFrameLocation = new HashMap<SimpleLocation, Gate>((int) (numFrameBlocks * 1.25));
+        gatesByFrameLocation = new HashMap<>((int) (numFrameBlocks * 1.25));
 
         for (Gate g : gates) {
             this.addGateByFrameLocations(g);
         }
     }
 
-
+    private void removeGateById(final String id) {
-    protected void removeGateById(final String id) {
         gatesById.remove(id);
     }
 
-
+    private void addGateWithId(final Gate g) {
-    protected void addGateWithId(final Gate g) {
         gatesById.put(g.getId(), g);
     }
 
-
+    private void removeGateByLocation(final Set<Location> gateBlocks) {
-    protected void removeGateByLocation(final Set<Location> gateBlocks) {
         if (gateBlocks != null) {
 
             for (Location l : gateBlocks) {
@@ -334,8 +299,7 @@ public class GatesManager {
         }
     }
 
-
+    private void removeGateByFrameLocation(final Set<Block> gateFrameBlocks) {
-    protected void removeGateByFrameLocation(final Set<Block> gateFrameBlocks) {
         if (gateFrameBlocks != null) {
 
             for (Block block : gateFrameBlocks) {
@@ -345,8 +309,7 @@ public class GatesManager {
         }
     }
 
-
+    private void addGateByLocations(final Gate g) {
-    protected void addGateByLocations(final Gate g) {
         for (Location l : g.getGateBlockLocations()) {
 
             SimpleLocation sl = new SimpleLocation(l);
@@ -357,16 +320,14 @@ public class GatesManager {
         }
     }
 
-
+    private void addGateByFrameLocations(final Gate g) {
-    protected void addGateByFrameLocations(final Gate g) {
         for (Block block : g.getGateFrameBlocks()) {
             SimpleLocation sl = new SimpleLocation(block.getLocation());
             gatesByFrameLocation.put(sl, g);
         }
     }
 
-
+    private void removeGateFromChunk(final Gate g, final Location l) {
-    protected void removeGateFromChunk(final Gate g, final Location l) {
         if (l != null) {
 
             Chunk c = l.getChunk();
@@ -389,8 +350,7 @@ public class GatesManager {
         }
     }
 
-
+    private void addGateByChunk(final Gate g) {
-    protected void addGateByChunk(final Gate g) {
         Location gateLocation = g.getLocation();
 
         if (gateLocation != null) {
@@ -418,8 +378,7 @@ public class GatesManager {
         }
     }
 
-
+    void storeInvalidGate(Map<String, Object> map) {
-    public void storeInvalidGate(Map<String, Object> map) {
         File invalidGatesFile = new File(Plugin.getPlugin().getDataFolder(), "invalid_gates.yml");
         Boolean invalidGatesFileExists = invalidGatesFile.exists();
 
@@ -473,13 +432,6 @@ public class GatesManager {
     public void handleGateIdChange(final Gate g, final String oldId) {
         this.removeGateById(oldId);
         this.addGateWithId(g);
-
-        Map<String, Object> changeSet = new HashMap<String, Object>();
-        changeSet.put(GateChangeListener.changedID, oldId);
-
-        for (GateChangeListener l : this.changeListeners) {
-            l.gateChangedHandler(g, changeSet);
-        }
     }
 
 
@@ -495,25 +447,11 @@ public class GatesManager {
 
         this.removeGateByFrameLocation(oldGateFrameBlocks);
         this.addGateByFrameLocations(g);
-
-        Map<String, Object> changeSet = new HashMap<String, Object>();
-        changeSet.put(GateChangeListener.changedLocation, oldLocation);
-
-        for (GateChangeListener l : this.changeListeners) {
-            l.gateChangedHandler(g, changeSet);
-        }
     }
 
 
     public void handleGateExitChange(final Gate g, final Location oldExit) {
         // nothing to do
-
-        Map<String, Object> changeSet = new HashMap<String, Object>();
-        changeSet.put(GateChangeListener.changedExit, oldExit);
-
-        for (GateChangeListener l : this.changeListeners) {
-            l.gateChangedHandler(g, changeSet);
-        }
     }
 
 
@@ -524,14 +462,6 @@ public class GatesManager {
         this.addGateByLocations(g);
         this.addGateWithId(g);
         this.addGateByFrameLocations(g);
-
-
-        Map<String, Object> changeSet = new HashMap<String, Object>();
-        changeSet.put(GateChangeListener.newGate, null);
-
-        for (GateChangeListener l : this.changeListeners) {
-            l.gateChangedHandler(g, changeSet);
-        }
     }
 
 
@@ -542,13 +472,6 @@ public class GatesManager {
         this.removeGateFromChunk(g, g.getLocation());
         this.removeGateByLocation(g.getGateBlockLocations());
         this.removeGateByFrameLocation(g.getGateFrameBlocks());
-
-        Map<String, Object> changeSet = new HashMap<String, Object>();
-        changeSet.put(GateChangeListener.removedGate, null);
-
-        for (GateChangeListener l : this.changeListeners) {
-            l.gateChangedHandler(g, changeSet);
-        }
     }
 
 

src/de/craftinc/gates/Plugin.java

@@ -46,16 +46,16 @@ public class Plugin extends JavaPlugin {
     private static Plugin instance;
     private static Permission permission;
 
-    protected String baseCommand;
+    private String baseCommand;
-    protected List<BaseCommand> commands = new ArrayList<BaseCommand>();
+    protected List<BaseCommand> commands = new ArrayList<>();
-    protected GatesManager gatesManager = new GatesManager();
+    private GatesManager gatesManager = new GatesManager();
 
-    protected PlayerMoveListener moveListener = new PlayerMoveListener();
+    private PlayerMoveListener moveListener = new PlayerMoveListener();
-    protected PlayerTeleportListener teleportListener = new PlayerTeleportListener();
+    private PlayerTeleportListener teleportListener = new PlayerTeleportListener();
-    protected PlayerRespawnListener respawnListener = new PlayerRespawnListener();
+    private PlayerRespawnListener respawnListener = new PlayerRespawnListener();
-    protected PlayerChangedWorldListener worldChangeListener = new PlayerChangedWorldListener();
+    private PlayerChangedWorldListener worldChangeListener = new PlayerChangedWorldListener();
-    protected PlayerJoinListener joinListener = new PlayerJoinListener();
+    private PlayerJoinListener joinListener = new PlayerJoinListener();
-    protected BlockBreakListener blockBreakListener = new BlockBreakListener();
+    private BlockBreakListener blockBreakListener = new BlockBreakListener();
 
 
     public Plugin() {
@@ -79,7 +79,7 @@ public class Plugin extends JavaPlugin {
     }
 
 
-    protected void setupPermissions() {
+    private void setupPermissions() {
         if (getServer().getPluginManager().getPlugin("Vault") == null) {
             return;
         }
@@ -154,7 +154,7 @@ public class Plugin extends JavaPlugin {
     }
 
 
-    protected void registerEventListeners() {
+    private void registerEventListeners() {
         PluginManager pm = this.getServer().getPluginManager();
 
         pm.registerEvents(this.moveListener, this);
@@ -187,13 +187,13 @@ public class Plugin extends JavaPlugin {
 
     @Override
     public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args) {
-        List<String> parameters = new ArrayList<String>(Arrays.asList(args));
+        List<String> parameters = new ArrayList<>(Arrays.asList(args));
         this.handleCommand(sender, parameters);
         return true;
     }
 
 
-    public void handleCommand(CommandSender sender, List<String> parameters) {
+    private void handleCommand(CommandSender sender, List<String> parameters) {
         if (parameters.size() == 0) {
             this.commands.get(0).execute(sender, parameters);
             return;
@@ -202,9 +202,9 @@ public class Plugin extends JavaPlugin {
         String commandName = parameters.get(0).toLowerCase();
         parameters.remove(0);
 
-        for (BaseCommand fcommand : this.commands) {
+        for (BaseCommand command : this.commands) {
-            if (fcommand.getAliases().contains(commandName)) {
+            if (command.getAliases().contains(commandName)) {
-                fcommand.execute(sender, parameters);
+                command.execute(sender, parameters);
                 return;
             }
         }
@@ -213,7 +213,6 @@ public class Plugin extends JavaPlugin {
                 ChatColor.GREEN + " Try " + "/" + getBaseCommand() + " help");
     }
 
-
     /*
      * Logging
      */

src/de/craftinc/gates/commands/BaseCommand.java

@@ -32,31 +32,29 @@ import de.craftinc.gates.util.TextUtil;
 
 public abstract class BaseCommand {
 
-    protected List<String> aliases = new ArrayList<String>();
+    protected List<String> aliases = new ArrayList<>();
-    protected List<String> requiredParameters = new ArrayList<String>();
+    protected List<String> requiredParameters = new ArrayList<>();
-    protected List<String> optionalParameters = new ArrayList<String>();
+    List<String> optionalParameters = new ArrayList<>();
 
     protected String helpDescription = "no description";
 
-    protected List<String> parameters;
+    List<String> parameters;
-    protected CommandSender sender;
+    CommandSender sender;
     protected Player player;
     protected Gate gate;
 
     protected boolean senderMustBePlayer = true;
-    protected boolean hasGateParam = true;
+    boolean hasGateParam = true;
 
     protected String requiredPermission;
     protected boolean needsPermissionAtCurrentLocation;
 
     protected boolean shouldPersistToDisk;
 
-
     public List<String> getAliases() {
         return aliases;
     }
 
-
     public void execute(CommandSender sender, List<String> parameters) {
         this.sender = sender;
         this.parameters = parameters;
@@ -81,23 +79,19 @@ public abstract class BaseCommand {
         return config.getBoolean(ConfigurationUtil.confSaveOnChangesKey);
     }
 
-
     abstract protected void perform();
 
-
     protected void sendMessage(String message) {
         sender.sendMessage(message);
     }
 
-
     protected void sendMessage(List<String> messages) {
         for (String message : messages) {
             this.sendMessage(message);
         }
     }
 
-
+    private boolean validateCall() {
-    protected boolean validateCall() {
         boolean allParametersThere = parameters.size() >= requiredParameters.size();
         boolean senderIsPlayer = this.sender instanceof Player;
         boolean hasGateParameter = false;
@@ -110,17 +104,23 @@ public abstract class BaseCommand {
         boolean valid;
 
         if (this.senderMustBePlayer && !senderIsPlayer) {
-            sendMessage(ChatColor.RED + "This command can only be used by ingame players.");
+            sendMessage(ChatColor.RED + "This command can only be used by in-game players.");
             valid = false;
         } else {
             if (!allParametersThere) {
-                sendMessage(ChatColor.RED + "Some parameters are missing! " + ChatColor.AQUA + "Usage: " + this.getUsageTemplate(true));
+                sendMessage(ChatColor.RED + "Some parameters are missing! " +
+                        ChatColor.AQUA + "Usage: " +
+                        this.getUsageTemplate()
+                );
                 valid = false;
             } else if ((!senderHasPermission && this.hasGateParam) ||
                     (!senderHasPermission) ||
                     (this.hasGateParam && !hasGateParameter)) {
 
-                sendMessage(ChatColor.RED + "You either provided a invalid gate or do not have permission to " + this.helpDescription.toLowerCase());
+                sendMessage(ChatColor.RED +
+                        "You either provided a invalid gate or do not have permission to " +
+                        this.helpDescription.toLowerCase()
+                );
                 valid = false;
             } else {
                 valid = true;
@@ -130,8 +130,7 @@ public abstract class BaseCommand {
         return valid;
     }
 
-
+    boolean setGateUsingParameter(String param) {
-    protected boolean setGateUsingParameter(String param) {
         GatesManager gateManager = Plugin.getPlugin().getGatesManager();
 
         if (!gateManager.gateExists(param)) {
@@ -142,11 +141,10 @@ public abstract class BaseCommand {
         }
     }
 
-
     /**
      * This will return false if a gate is required for this command but this.gate == null.
      */
-    protected boolean hasPermission() {
+    boolean hasPermission() {
         if (Plugin.getPermission() == null) { // fallback - use the standard bukkit permission system
             return this.sender.hasPermission(this.requiredPermission);
         }
@@ -160,32 +158,35 @@ public abstract class BaseCommand {
         Player p = (Player) this.sender;
         boolean hasPermission = false;
 
-        if (this.requiredPermission.equals(Plugin.permissionInfo)) {
+        switch (this.requiredPermission) {
+            case Plugin.permissionInfo:
 
                 if (this.hasGateParam) {
                     hasPermission = this.hasPermissionAtGateLocationAndExit(p);
                 } else {
-                hasPermission = Plugin.getPermission().has(p.getWorld(), p.getName(), this.requiredPermission);
+                    hasPermission = hasPermissionAtPlayerLocation(p);
                 }
-        } else if (this.requiredPermission.equals(Plugin.permissionUse)) {
+                break;
+            case Plugin.permissionUse:
                 hasPermission = this.hasPermissionAtGateLocationAndExit(p);
-        } else if (this.requiredPermission.equals(Plugin.permissionManage)) {
+                break;
+            case Plugin.permissionManage:
 
                 if (this.needsPermissionAtCurrentLocation && this.hasGateParam) {
-                boolean hasPersmissionAtCurrentLocation = Plugin.getPermission().has(p.getWorld(), p.getName(), this.requiredPermission);
+                    boolean hasPermissionAtCurrentLocation = hasPermissionAtPlayerLocation(p);
-                hasPermission = hasPersmissionAtCurrentLocation && this.hasPermissionAtGateLocationAndExit(p);
+                    hasPermission = hasPermissionAtCurrentLocation && this.hasPermissionAtGateLocationAndExit(p);
                 } else if (this.needsPermissionAtCurrentLocation) {
-                hasPermission = Plugin.getPermission().has(p.getWorld(), p.getName(), this.requiredPermission);
+                    hasPermission = hasPermissionAtPlayerLocation(p);
                 } else {
                     hasPermission = this.hasPermissionAtGateLocationAndExit(p);
                 }
+                break;
         }
 
         return hasPermission;
     }
 
-
+    private boolean hasPermissionAtGateLocationAndExit(Player p) {
-    protected boolean hasPermissionAtGateLocationAndExit(Player p) {
         if (this.gate == null || p == null) {
             return false;
         }
@@ -196,20 +197,21 @@ public abstract class BaseCommand {
         return permAtLocation & permAtExit;
     }
 
-
+    private boolean hasPermissionAtPlayerLocation(Player p) {
-    // -------------------------------------------- //
+        return Plugin.getPermission().has(p.getWorld(), p.getName(), this.requiredPermission);
-    // Help and usage description
-    // -------------------------------------------- //
-    protected String getUsageTemplate(boolean withColor, boolean withDescription) {
-        String ret = "";
-
-        if (withColor) {
-            ret += ChatColor.AQUA;
     }
 
+    /*
+        Help and usage description
+    */
+
+    String getUsageTemplate(boolean withDescription) {
+        String ret = "";
+
+        ret += ChatColor.AQUA;
         ret += "/" + Plugin.getPlugin().getBaseCommand() + " " + TextUtil.implode(this.getAliases(), ",") + " ";
 
-        List<String> parts = new ArrayList<String>();
+        List<String> parts = new ArrayList<>();
 
         for (String requiredParameter : this.requiredParameters) {
             parts.add("[" + requiredParameter + "]");
@@ -219,24 +221,19 @@ public abstract class BaseCommand {
             parts.add("*[" + optionalParameter + "]");
         }
 
-        if (withColor) {
-            ret += ChatColor.DARK_AQUA;
-        }
 
+        ret += ChatColor.DARK_AQUA;
         ret += TextUtil.implode(parts, " ");
 
         if (withDescription) {
             ret += " ";
-
-            if (withColor) {
             ret += ChatColor.YELLOW;
-            }
             ret += this.helpDescription;
         }
         return ret;
     }
 
-    protected String getUsageTemplate(boolean withColor) {
+    private String getUsageTemplate() {
-        return getUsageTemplate(withColor, false);
+        return getUsageTemplate(false);
     }
 }

src/de/craftinc/gates/commands/BaseLocationCommand.java

@@ -21,25 +21,21 @@ import org.bukkit.Material;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
 
-public abstract class BaseLocationCommand extends BaseCommand {
+abstract class BaseLocationCommand extends BaseCommand {
 
-    protected Location getValidPlayerLocation() {
+    Location getValidPlayerLocation() {
         // The player might stand in a half block or a sign or whatever
         // Therefore we load some extra locations and blocks
-        Block playerBlock = player.getLocation().getBlock();
+        Location location = player.getLocation().clone();
+        Block playerBlock = location.getBlock();
         Block upBlock = playerBlock.getRelative(BlockFace.UP);
 
         if (playerBlock.getType() == Material.AIR) {
-            return player.getLocation();
+            return location;
         } else if (upBlock.getType() == Material.AIR) {
-            return new Location(player.getLocation().getWorld(),
+            return location.add(0, 1, 0);
-                    player.getLocation().getX(),
+        } else {
-                    player.getLocation().getY() + 1,
-                    player.getLocation().getZ(),
-                    player.getLocation().getYaw(),
-                    player.getLocation().getPitch());
-        }
-
             return null;
         }
     }
+}

src/de/craftinc/gates/commands/CommandHelp.java

@@ -25,36 +25,36 @@ import java.util.List;
 
 public class CommandHelp extends BaseCommand {
 
-    public static List<List<String>> helpPages;
+    private static List<List<String>> helpPages;
 
     static {
         // sort the usage strings
-        List<String> allUsageStrings = new ArrayList<String>();
+        List<String> allUsageStrings = new ArrayList<>();
 
-        allUsageStrings.add(new CommandHelp().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandHelp().getUsageTemplate(true));
-        allUsageStrings.add(new CommandNew().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandNew().getUsageTemplate(true));
-        allUsageStrings.add(new CommandRemove().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandRemove().getUsageTemplate(true));
-        allUsageStrings.add(new CommandLocation().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandLocation().getUsageTemplate(true));
-        allUsageStrings.add(new CommandExit().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandExit().getUsageTemplate(true));
-        allUsageStrings.add(new CommandOpen().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandOpen().getUsageTemplate(true));
-        allUsageStrings.add(new CommandRename().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandRename().getUsageTemplate(true));
-        allUsageStrings.add(new CommandClose().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandClose().getUsageTemplate(true));
-        allUsageStrings.add(new CommandList().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandList().getUsageTemplate(true));
-        allUsageStrings.add(new CommandInfo().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandInfo().getUsageTemplate(true));
-        allUsageStrings.add(new CommandHide().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandHide().getUsageTemplate(true));
-        allUsageStrings.add(new CommandUnhide().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandUnhide().getUsageTemplate(true));
-        allUsageStrings.add(new CommandExitOpen().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandExitOpen().getUsageTemplate(true));
-        allUsageStrings.add(new CommandNearby().getUsageTemplate(true, true));
+        allUsageStrings.add(new CommandNearby().getUsageTemplate(true));
 
         Collections.sort(allUsageStrings);
 
 
         // put 5 commands on one page
-        helpPages = new ArrayList<List<String>>();
+        helpPages = new ArrayList<>();
 
         while (!allUsageStrings.isEmpty()) {
             int toIndex = allUsageStrings.size() >= 6 ? 5 : allUsageStrings.size();
-            List<String> currentHelpPage = new ArrayList<String>(allUsageStrings.subList(0, toIndex));
+            List<String> currentHelpPage = new ArrayList<>(allUsageStrings.subList(0, toIndex));
             helpPages.add(currentHelpPage);
 
             allUsageStrings.removeAll(currentHelpPage);
@@ -92,7 +92,7 @@ public class CommandHelp extends BaseCommand {
             page = 1;
         }
 
-        sendMessage(TextUtil.titleize("Craft Inc. Gates Help (" + page + "/" + helpPages.size() + ")"));
+        sendMessage(TextUtil.titleSize("Craft Inc. Gates Help (" + page + "/" + helpPages.size() + ")"));
 
         page -= 1;
         if (page < 0 || page >= helpPages.size()) {

src/de/craftinc/gates/commands/CommandInfo.java

@@ -50,7 +50,7 @@ public class CommandInfo extends BaseCommand {
                 return;
             }
 
-            sendMessage(TextUtil.titleize("Information about: '" + ChatColor.WHITE + gate.getId() + ChatColor.YELLOW + "'"));
+            sendMessage(TextUtil.titleSize("Information about: '" + ChatColor.WHITE + gate.getId() + ChatColor.YELLOW + "'"));
         } else {
             boolean senderIsPlayer = this.sender instanceof Player;
 
@@ -69,7 +69,7 @@ public class CommandInfo extends BaseCommand {
 
             Plugin.log(this.gate.toString());
 
-            sendMessage(TextUtil.titleize("Information about closest gate: '" + ChatColor.WHITE + gate.getId() + ChatColor.YELLOW + "'"));
+            sendMessage(TextUtil.titleSize("Information about closest gate: '" + ChatColor.WHITE + gate.getId() + ChatColor.YELLOW + "'"));
         }
 
         String openHiddenMessage = ChatColor.DARK_AQUA + "This gate is";

src/de/craftinc/gates/commands/CommandList.java

@@ -68,17 +68,17 @@ public class CommandList extends BaseCommand {
             return;
         }
 
-        String message = TextUtil.titleize("List of all gates (" + page + "/" + allPages.size() + ")") + "\n";
+        String message = TextUtil.titleSize("List of all gates (" + page + "/" + allPages.size() + ")") + "\n";
         message += allPages.get(page - 1);
 
         sendMessage(message);
     }
 
     private static List<String> linesOfGateIds(List<String> gates) {
-        List<String> lines = new ArrayList<String>();
+        List<String> lines = new ArrayList<>();
 
         int index = 0;
-        List<String> gateIdsForCurrentLine = new ArrayList<String>();
+        List<String> gateIdsForCurrentLine = new ArrayList<>();
         int numCharactersInCurrentLine = 0;
 
         while (index < gates.size()) {
@@ -86,7 +86,7 @@ public class CommandList extends BaseCommand {
             int gateIdLength = gateId.length() + 2; // actual length + comma + whitespace
 
             if (gateIdLength > charactersPerLine && numCharactersInCurrentLine == 0) { // special case: very long gate id
-                gateIdsForCurrentLine = new ArrayList<String>();
+                gateIdsForCurrentLine = new ArrayList<>();
                 numCharactersInCurrentLine = 0;
 
                 while ((gateId.length() + 2) > charactersPerLine) {
@@ -113,7 +113,7 @@ public class CommandList extends BaseCommand {
             } else {  // the current gate does not fit on the
                 lines.add(TextUtil.implode(gateIdsForCurrentLine, ", ") + ", ");
 
-                gateIdsForCurrentLine = new ArrayList<String>();
+                gateIdsForCurrentLine = new ArrayList<>();
                 numCharactersInCurrentLine = 0;
             }
         }
@@ -154,7 +154,7 @@ public class CommandList extends BaseCommand {
             Player p = (Player) this.sender;
 
             // create a copy since we cannot iterate over a collection while modifying it!
-            Collection<Gate> gatesCopy = new ArrayList<Gate>(gates);
+            Collection<Gate> gatesCopy = new ArrayList<>(gates);
 
             for (Gate gate : gatesCopy) {
                 if (gate.getLocation() != null) {
@@ -186,7 +186,7 @@ public class CommandList extends BaseCommand {
      */
     private static List<List<String>> gatesSortedByName(Collection<Gate> allGates) {
         // create the lists
-        List<List<String>> ids = new ArrayList<List<String>>();
+        List<List<String>> ids = new ArrayList<>();
 
         for (int i = 0; i < 28; i++) {
             ids.add(new ArrayList<String>());
@@ -232,7 +232,7 @@ public class CommandList extends BaseCommand {
         }
 
         List<List<String>> gatesSortedByName = gatesSortedByName(gates);
-        List<String> allPages = new ArrayList<String>();
+        List<String> allPages = new ArrayList<>();
         int linesLeftOnPage = linesPerPage - 1;
         String currentPageString = "";
 

src/de/craftinc/gates/commands/CommandLocation.java

@@ -61,7 +61,7 @@ public class CommandLocation extends BaseLocationCommand {
             sendMessage(ChatColor.GREEN + "The location of '" + gate.getId() + "' is now at your current location.");
         } catch (Exception e) {
             sendMessage(ChatColor.RED + "There seems to be no frame at your new location! The gate got closed!" + ChatColor.AQUA + " You should build a frame now and execute:");
-            sendMessage(new CommandOpen().getUsageTemplate(true, true));
+            sendMessage(new CommandOpen().getUsageTemplate(true));
         } finally {
             Plugin.getPlugin().getGatesManager().handleGateLocationChange(gate, oldLocation, oldGateBlockLocations, oldFrameBlocks);
             GateBlockChangeSender.updateGateBlocks(gate);

src/de/craftinc/gates/commands/CommandNearby.java

@@ -32,7 +32,7 @@ public class CommandNearby extends BaseLocationCommand {
         } else {
             GateBlockChangeSender.temporaryHighlightGatesFrames(player, nearbyGates);
 
-            ArrayList<String> gateNames = new ArrayList<String>();
+            ArrayList<String> gateNames = new ArrayList<>();
 
             for (Gate g : nearbyGates) {
                 gateNames.add(g.getId());

src/de/craftinc/gates/commands/CommandNew.java

@@ -62,7 +62,7 @@ public class CommandNew extends BaseLocationCommand {
             }
         } else {
             sendMessage(ChatColor.RED + "Your location is invalid!" + ChatColor.AQUA + "Go somewhere else and execute:");
-            sendMessage(new CommandLocation().getUsageTemplate(true, true));
+            sendMessage(new CommandLocation().getUsageTemplate(true));
         }
 
         gatesManager.handleNewGate(gate);

src/de/craftinc/gates/listeners/PlayerMoveListener.java

@@ -39,7 +39,7 @@ import org.bukkit.scheduler.BukkitScheduler;
 
 
 public class PlayerMoveListener implements Listener {
-    protected HashMap<String, Long> lastNoPermissionMessages = new HashMap<String, Long>();
+    private HashMap<String, Long> lastNoPermissionMessages = new HashMap<>();
 
     @EventHandler(priority = EventPriority.NORMAL)
     public void onPlayerMove(PlayerMoveEvent event) {
@@ -150,7 +150,7 @@ public class PlayerMoveListener implements Listener {
     }
 
 
-    protected boolean hasPermission(final Player player, final Gate gate) {
+    private boolean hasPermission(final Player player, final Gate gate) {
         if (Plugin.getPermission() == null) { // fallback: use the standard bukkit permission system
             return player.hasPermission(Plugin.permissionUse);
         } else {

src/de/craftinc/gates/persistence/LocationUtil.java

@@ -26,11 +26,11 @@ import de.craftinc.gates.Plugin;
 
 
 public class LocationUtil {
-    protected final static String worldKey = "world";
-    protected final static String xKey = "x";
-    protected final static String yKey = "y";
-    protected final static String zKey = "z";
 
+    private final static String worldKey = "world";
+    private final static String xKey = "x";
+    private final static String yKey = "y";
+    private final static String zKey = "z";
 
     protected static World getWorld(final String name) throws Exception {
         if (name == null) {
@@ -46,7 +46,6 @@ public class LocationUtil {
         return world;
     }
 
-
     /**
      * Serializes a location. Helps storing locations inside yaml files. NOTE: We do not care about yaw
      * and pitch for gate locations. So we won't serialize them.
@@ -59,7 +58,7 @@ public class LocationUtil {
             return null;
         }
 
-        Map<String, Object> serializedLocation = new HashMap<String, Object>();
+        Map<String, Object> serializedLocation = new HashMap<>();
 
         serializedLocation.put(worldKey, l.getWorld().getName());
         serializedLocation.put(xKey, l.getX());
@@ -69,7 +68,6 @@ public class LocationUtil {
         return serializedLocation;
     }
 
-
     /**
      * @param map A map generated with the 'serializeLocation' method. Supplying 'null' is ok.
      * @return A deserialized location. This method will return 'null' if 'map' is null!

src/de/craftinc/gates/persistence/MigrationUtil.java

@@ -28,6 +28,7 @@ import java.util.logging.Level;
 
 
 public class MigrationUtil {
+
     public static boolean performMigration(int storageVersion, int currentVersion, List<Gate> gates) {
         if (storageVersion == 0 && currentVersion >= 2) {
             removePortalBlocks(gates);
@@ -44,8 +45,7 @@ public class MigrationUtil {
         }
     }
 
-
+    private static void removePortalBlocks(List<Gate> gates) {
-    protected static void removePortalBlocks(List<Gate> gates) {
         for (Gate g : gates) {
 
             for (Location l : g.getGateBlockLocations()) {
@@ -58,10 +58,8 @@ public class MigrationUtil {
         }
     }
 
-
+    private static void updateAllowVehicles(List<Gate> gates) {
-    protected static void updateAllowVehicles(List<Gate> gates) {
         for (Gate g : gates) {
-
             g.setAllowsVehicles(true);
         }
     }

src/de/craftinc/gates/util/ConfigurationUtil.java

@@ -37,58 +37,82 @@ public class ConfigurationUtil {
     public static final String confGateMaterialKey = "gateMaterial";
 
 
-    public static GateMaterial getPortalMaterial() {
+    static GateMaterial getPortalMaterial() {
         String materialString = Plugin.getPlugin().getConfig().getString(confGateMaterialKey);
         GateMaterial material = new GateMaterial();
 
-        if (materialString.equals("sapling")) {
+        switch (materialString) {
+            case "sapling":
                 material.material = Material.SAPLING;
-        } else if (materialString.equals("water")) {
+                break;
+            case "water":
                 material.material = Material.STATIONARY_WATER;
-        } else if (materialString.equals("lava")) {
+                break;
+            case "lava":
                 material.material = Material.STATIONARY_LAVA;
-        } else if (materialString.equals("cobweb")) {
+                break;
+            case "cobweb":
                 material.material = Material.WEB;
-        } else if (materialString.equals("grass")) {
+                break;
+            case "grass":
                 material.material = Material.LONG_GRASS;
                 material.data = 1;
-        } else if (materialString.equals("dead bush")) {
+                break;
+            case "dead bush":
                 material.material = Material.DEAD_BUSH;
-        } else if (materialString.equals("dandelion")) {
+                break;
+            case "dandelion":
                 material.material = Material.YELLOW_FLOWER;
-        } else if (materialString.equals("poppy")) {
+                break;
+            case "poppy":
                 material.material = Material.RED_ROSE;
-        } else if (materialString.equals("brown mushroom")) {
+                break;
+            case "brown mushroom":
                 material.material = Material.BROWN_MUSHROOM;
-        } else if (materialString.equals("red mushroom")) {
+                break;
+            case "red mushroom":
                 material.material = Material.RED_MUSHROOM;
-        } else if (materialString.equals("torch")) {
+                break;
+            case "torch":
                 material.material = Material.TORCH;
-        } else if (materialString.equals("redstone torch (off)")) {
+                break;
+            case "redstone torch (off)":
                 material.material = Material.REDSTONE_TORCH_OFF;
-        } else if (materialString.equals("redstone torch (on)")) {
+                break;
+            case "redstone torch (on)":
                 material.material = Material.REDSTONE_TORCH_ON;
-        } else if (materialString.equals("fence")) {
+                break;
+            case "fence":
                 material.material = Material.FENCE;
-        } else if (materialString.equals("nether portal")) {
+                break;
+            case "nether portal":
                 material.material = Material.PORTAL;
-        } else if (materialString.equals("iron bars")) {
+                break;
+            case "iron bars":
                 material.material = Material.IRON_FENCE;
-        } else if (materialString.equals("glass pane")) {
+                break;
+            case "glass pane":
                 material.material = Material.THIN_GLASS;
-        } else if (materialString.equals("fence gate")) {
+                break;
+            case "fence gate":
                 material.material = Material.FENCE_GATE;
-        } else if (materialString.equals("nether brick fence")) {
+                break;
+            case "nether brick fence":
                 material.material = Material.NETHER_FENCE;
-        } else if (materialString.equals("nether wart")) {
+                break;
+            case "nether wart":
                 material.material = Material.NETHER_WARTS;
-        } else if (materialString.equals("end portal")) {
+                break;
+            case "end portal":
                 material.material = Material.ENDER_PORTAL;
-        } else if (materialString.equals("cobblestone wall")) {
+                break;
+            case "cobblestone wall":
                 material.material = Material.COBBLE_WALL;
-        } else { // fallback!
+                break;
+            default:  // fallback!
                 material.material = Material.PORTAL;
                 Plugin.log(Level.WARNING, "Gate material invalid! Please check and correct your configuration file!");
+                break;
         }
 
         return material;

src/de/craftinc/gates/util/FloodUtil.java

@@ -29,8 +29,8 @@ import de.craftinc.gates.Plugin;
 
 
 public class FloodUtil {
-    protected static final Set<BlockFace> exp1 = new HashSet<BlockFace>();
+    private static final Set<BlockFace> exp1 = new HashSet<>();
-    protected static final Set<BlockFace> exp2 = new HashSet<BlockFace>();
+    private static final Set<BlockFace> exp2 = new HashSet<>();
 
     static {
         exp1.add(BlockFace.UP);
@@ -53,7 +53,7 @@ public class FloodUtil {
      */
     public static Set<Block> getFrame(final Set<Block> blocks) {
         if (blocks == null || blocks.isEmpty()) {
-            return new HashSet<Block>();
+            return new HashSet<>();
         }
 
         // try to find gate's direction (north-south or east-west)
@@ -97,8 +97,8 @@ public class FloodUtil {
     }
 
 
-    protected static Set<Block> _getFrame(final Set<Block> blocks, final Set<BlockFace> searchDirections) {
+    private static Set<Block> _getFrame(final Set<Block> blocks, final Set<BlockFace> searchDirections) {
-        Set<Block> frameBlocks = new HashSet<Block>();
+        Set<Block> frameBlocks = new HashSet<>();
 
         for (Block b : blocks) {
 
@@ -126,7 +126,7 @@ public class FloodUtil {
             throw new IllegalArgumentException("'locations' must not be 'null'");
         }
 
-        Set<Block> blocks = new HashSet<Block>();
+        Set<Block> blocks = new HashSet<>();
 
         for (Location l : locations) {
             blocks.add(l.getBlock());
@@ -167,7 +167,7 @@ public class FloodUtil {
     }
 
 
-    protected static Set<Block> getAirFloodBlocks(final Block startBlock,
+    private static Set<Block> getAirFloodBlocks(final Block startBlock,
                                                   Set<Block> foundBlocks,
                                                   final Set<BlockFace> expandFaces,
                                                   int limit) {

src/de/craftinc/gates/util/GateBlockChangeSender.java

@@ -97,7 +97,7 @@ public class GateBlockChangeSender {
     }
 
 
-    protected static void dehighlightGatesFrames(final Player player, final Set<Gate> gates) {
+    private static void dehighlightGatesFrames(final Player player, final Set<Gate> gates) {
         for (Gate g : gates) {
             Set<Block> frameBlocks = g.getGateFrameBlocks();
 
@@ -108,7 +108,7 @@ public class GateBlockChangeSender {
     }
 
 
-    protected static void dehighlightGateFrame(final Player player, final Gate gate) {
+    private static void dehighlightGateFrame(final Player player, final Gate gate) {
         Set<Block> frameBlocks = gate.getGateFrameBlocks();
 
         for (Block b : frameBlocks) {
@@ -207,7 +207,7 @@ public class GateBlockChangeSender {
             return;
         }
 
-        ArrayList<Player> playersNearby = new ArrayList<Player>();
+        ArrayList<Player> playersNearby = new ArrayList<>();
 
         int searchRadius = Plugin.getPlugin().getConfig().getInt(confPlayerGateBlockUpdateRadiusKey);
 

src/de/craftinc/gates/util/TextUtil.java

@@ -21,7 +21,8 @@ import org.bukkit.ChatColor;
 import java.util.List;
 
 public class TextUtil {
-    public static String titleize(String str) {
+
+    public static String titleSize(String str) {
         String center = ".[ " + ChatColor.YELLOW + str + ChatColor.GOLD + " ].";
 
         if (center.length() >= 60) {
@@ -38,7 +39,7 @@ public class TextUtil {
     }
 
 
-    public static String repeat(String s, int times) {
+    private static String repeat(String s, int times) {
         if (times <= 0)
             return "";
 

src/de/craftinc/gates/util/VehicleCloner.java

@@ -21,6 +21,7 @@ import org.bukkit.entity.*;
 
 
 public class VehicleCloner {
+
     public static Vehicle clone(Vehicle parent, Location cloneLocation) {
         Vehicle clone = cloneLocation.getWorld().spawn(cloneLocation, parent.getClass());