Convert to maven

.gitignore

@@ -0,0 +1,8 @@
+### IntelliJ specific files
+
+*.iml
+.idea/
+
+### Maven
+
+target/

pom.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.redstoner</groupId>
+    <artifactId>ChestAPI</artifactId>
+    <version>0.1</version>
+
+    <packaging>jar</packaging>
+
+    <properties>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+    </properties>
+
+    <repositories>
+        <repository>
+            <id>spigot-repo</id>
+            <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <!--Spigot API-->
+        <dependency>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot-api</artifactId>
+            <version>1.12.2-R0.1-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+        <!--Bukkit API-->
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>bukkit</artifactId>
+            <version>1.12.2-R0.1-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+
+</project>

src/main/java/de/pepich/chestapi/ClickableInventory.java

@@ -1,9 +1,5 @@
 package de.pepich.chestapi;
 
-import java.util.HashMap;
-
-import javax.annotation.Nullable;
-
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
@@ -16,6 +12,8 @@ import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.InventoryHolder;
 import org.bukkit.inventory.ItemStack;
 
+import java.util.HashMap;
+
 public class ClickableInventory implements Listener
 {
 	private int open = 0;
@@ -32,7 +30,7 @@ public class ClickableInventory implements Listener
 	/** Creates a new ClickableInventory with the given name.</br>
 	 * The ClickableInventory will be created with a DefaultSize as specified by {@link DefaultSize#DYNAMIC_AUTO(int, int) DYNAMIC_AUTO(9, 54)}.
 	 * 
-	 * @param name The name to be displayed. */
+	 * @param title The name to be displayed. */
 	public ClickableInventory(final String title)
 	{
 		this(title, DefaultSize.DYNAMIC_AUTO(9, 54));
@@ -40,7 +38,7 @@ public class ClickableInventory implements Listener
 	
 	/** Creates a new ClickableInventory with the given name and the specified DefaultSize.
 	 * 
-	 * @param name The name to be displayed.
+	 * @param title The name to be displayed.
 	 * @param size The DefaultSize for the inventory to be used. */
 	public ClickableInventory(final String title, final DefaultSize size)
 	{
@@ -135,7 +133,7 @@ public class ClickableInventory implements Listener
 	 * @param item An ItemStack that will be displayed. Set to null if you want to assign functionality to an empty slot.
 	 * @param handler A CallbackHandler which will be notified on click. When the handler is null then the handler will be removed, but the item will still be assigned.
 	 * @throws IllegalArgumentException when the location does not exist or when one of -1 or 0 are specified and the inventory is already full. */
-	public void set(int slot, @Nullable final ItemStack item, @Nullable final CallbackHandler handler)
+	public void set(int slot, final ItemStack item, final CallbackHandler handler)
 	{
 		if (slot > inventory.getSize())
 			resize(slot);