Some light cleaning

pom.xml

@@ -29,10 +29,10 @@
         <plugins>
             <plugin>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>2.3.2</version>
+                <version>3.8.1</version>
                 <configuration>
-                    <source>1.7</source>
+                    <source>1.8</source>
-                    <target>1.7</target>
+                    <target>1.8</target>
                 </configuration>
             </plugin>
         </plugins>
@@ -53,7 +53,7 @@
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot-api</artifactId>
-            <version>1.14.1-R0.1-SNAPSHOT</version>
+            <version>1.13.1-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>

src/main/java/com/drtshock/playervaults/commands/ConvertCommand.java

@@ -62,9 +62,7 @@ public class ConvertCommand implements CommandExecutor {
                 } else {
                     // Fork into background
                     sender.sendMessage(Lang.TITLE + Lang.CONVERT_BACKGROUND.toString());
-                    PlayerVaults.getInstance().getServer().getScheduler().runTaskLaterAsynchronously(PlayerVaults.getInstance(), new Runnable() {
+                    PlayerVaults.getInstance().getServer().getScheduler().runTaskLaterAsynchronously(PlayerVaults.getInstance(), () -> {
-                        @Override
-                        public void run() {
                         int converted = 0;
                         VaultOperations.setLocked(true);
                         for (Converter converter : applicableConverters) {
@@ -74,7 +72,6 @@ public class ConvertCommand implements CommandExecutor {
                         }
                         VaultOperations.setLocked(false);
                         sender.sendMessage(Lang.TITLE + Lang.CONVERT_COMPLETE.toString().replace("%converted", converted + ""));
-                        }
                     }, 5);
                 }
             }

src/main/java/com/drtshock/playervaults/vaultmanagement/Serialization.java

@@ -127,7 +127,7 @@ public class Serialization {
                 entry.setValue(serialize((ConfigurationSerializable) entry.getValue()));
             } else if (entry.getValue() instanceof Iterable<?>) {
                 List<Object> newList = new ArrayList<>();
-                for (Object object : ((Iterable) entry.getValue())) {
+                for (Object object : ((Iterable<?>) entry.getValue())) {
                     if (object instanceof ConfigurationSerializable) {
                         object = serialize((ConfigurationSerializable) object);
                     }
@@ -167,7 +167,7 @@ public class Serialization {
             if (object instanceof Map) {
                 object = deserialize((Map<String, Object>) object);
             } else if (object instanceof List) {
-                object = convertIterable((Iterable) object);
+                object = convertIterable((Iterable<?>) object);
             } else if (object instanceof Number) {
                 object = convertNumber((Number) object);
             }

src/main/java/com/drtshock/playervaults/vaultmanagement/UUIDVaultManager.java

@@ -79,7 +79,7 @@ public class UUIDVaultManager {
             }
         }
         List<String> list = Serialization.toString(inventory);
-        String[] ser = list.toArray(new String[list.size()]);
+        String[] ser = list.toArray(new String[0]);
         for (int x = 0; x < ser.length; x++) {
             if (!ser[x].equalsIgnoreCase("null")) {
                 yaml.set("vault" + number + "." + x, ser[x]);

src/main/java/com/drtshock/playervaults/vaultmanagement/VaultHolder.java

@@ -27,7 +27,7 @@ import org.bukkit.inventory.InventoryHolder;
 public class VaultHolder implements InventoryHolder {
 
     private Inventory inventory;
-    private int vaultNumber = 0;
+    private int vaultNumber;
 
     /**
      * Creates a new vault holder

src/main/java/com/drtshock/playervaults/vaultmanagement/VaultManager.java

@@ -220,7 +220,7 @@ public class VaultManager {
         for (String s : file.getKeys(false)) {
             try {
                 // vault%
-                int number = Integer.valueOf(s.substring(4));
+                int number = Integer.parseInt(s.substring(4));
                 vaults.add(number);
             } catch (NumberFormatException e) {
                 // silent
@@ -285,7 +285,6 @@ public class VaultManager {
         YamlConfiguration config = this.loadPlayerVaultFile(holder, false);
         if (config != null) {
             this.cachedVaultFiles.put(holder, config);
-        } else {
         }
     }