Cleans up a bit and changes to compile for java 16 and spigot 1.17

pom.xml

@@ -14,8 +14,8 @@
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>16</maven.compiler.source>
+        <maven.compiler.target>16</maven.compiler.target>
 	</properties>
 
 	<repositories>
@@ -33,7 +33,7 @@
 		<dependency>
 			<groupId>org.spigotmc</groupId>
 			<artifactId>spigot-api</artifactId>
-			<version>1.16.5-R0.1-SNAPSHOT</version>
+			<version>1.17.1-R0.1-SNAPSHOT</version>
 		</dependency>
 		<dependency>
 			<groupId>net.milkbowl.vault</groupId>
@@ -48,8 +48,8 @@
         </dependency>
         <dependency>
             <groupId>com.github.seeseemelk</groupId>
-            <artifactId>MockBukkit-v1.16</artifactId>
-            <version>0.24.0</version>
+            <artifactId>MockBukkit-v1.17</artifactId>
+            <version>1.7.0</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -58,6 +58,12 @@
             <version>19.0.0</version>
             <scope>compile</scope>
         </dependency>
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>4.13.1</version>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
 
 	<build>