Add new getters and exception. Format some code

pom.xml

@@ -5,12 +5,16 @@
 
 	<groupId>me.unei</groupId>
 	<artifactId>uneiconfiguration-api</artifactId>
-	<version>1.4</version>
+	<version>1.5</version>
 
 	<name>UneiConfigurationAPI</name>
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+
+		<maven.compiler.source>1.8</maven.compiler.source>
+		<maven.compiler.target>1.8</maven.compiler.target>
 
 		<manifest.built-by>UneiTeam</manifest.built-by>
 
@@ -36,7 +40,7 @@
 	<scm>
 		<url>https://github.com/Unei/UneiConfigurationAPI</url>
 		<connection>scm:git:git://github.com:Unei/UneiConfigurationAPI.git</connection>
-		<developerConnection>scm:git:git@github.com:Unei/UneiConfigurationAPI.git</developerConnection>
+		<developerConnection>scm:git:git@gitlab.com:unei/UneiConfigurationAPI.git</developerConnection>
 	</scm>
 
 	<issueManagement>
@@ -75,21 +79,13 @@
 			</resource>
 		</resources>
 		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>3.8.0</version>
-				<configuration>
-					<source>1.8</source>
-					<target>1.8</target>
-				</configuration>
-			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-javadoc-plugin</artifactId>
 				<version>3.0.1</version>
 				<configuration>
 					<archive>
+						<compress>true</compress>
 						<manifestEntries>
 							<Built-By>${manifest.built-by}</Built-By>
 						</manifestEntries>
@@ -123,12 +119,33 @@
 				</executions>
 			</plugin>
 
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-install-plugin</artifactId>
+				<version>3.0.0-M1</version>
+				<configuration>
+					<createChecksum>true</createChecksum>
+				</configuration>
+			</plugin>
+
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-jar-plugin</artifactId>
+				<version>3.2.0</version>
+				<configuration>
+					<archive>
+						<compress>true</compress>
+					</archive>
+				</configuration>
+			</plugin>
+
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-source-plugin</artifactId>
 				<version>3.0.1</version>
 				<configuration>
 					<archive>
+						<compress>true</compress>
 						<manifestEntries>
 							<Built-By>${manifest.built-by}</Built-By>
 						</manifestEntries>

src/main/java/me/unei/configuration/UneiConfiguration.java

@@ -4,40 +4,37 @@
 import me.unei.configuration.plugin.IBasicPlugin;
 import me.unei.configuration.plugin.IUpdater;
 
-public abstract class UneiConfiguration implements IBasicPlugin
-{
+public abstract class UneiConfiguration implements IBasicPlugin {
 	private static final StaticInstance<UneiConfiguration> Instance = new StaticInstance<>();
 	public static final StaticInstanceExposer<UneiConfiguration> INSTANCE = new StaticInstanceExposer<>(Instance, false);
-
-	static
-	{
+
+	static {
 		try {
 			Instance.setConstructor(Class.forName("me.unei.configuration.plugin.UneiConfiguration"), "getInstance");
 		} catch (ClassNotFoundException e) {
 			;
 		}
 	}
-	
+
 	protected final void setInstance() {
 		if (Instance.isEmpty()) {
 			Instance.set(this);
 		}
 	}
-	
+
 	protected static final StaticInstance<UneiConfiguration> getStaticHolder() {
 		return Instance;
 	}
-	
+
 	/**
 	 * Gets  an instance of the running UneiConfiguration plugin.
 	 * 
 	 * @return Returns an instance of a UneiConfiguration.
 	 */
-	public static UneiConfiguration getInstance()
-	{
+	public static UneiConfiguration getInstance() {
 		return INSTANCE.get();
 	}
-	
+
 	/**
 	 * Sends the given name at BStats.
 	 * <p>
@@ -48,25 +45,24 @@ public static UneiConfiguration getInstance()
 	 * @param name The name of the plugin depending on UneiConfiguration.
 	 */
 	public abstract void registerMyNameInBStats(String name);
-	
+
 	/**
 	 * Try to load the UneiConfiguration implementation forcefully (useful when using it in stand-alone mode).
 	 * 
 	 * @return Returns this API instance if loaded successfully.
 	 */
-	public static UneiConfiguration tryInstanciate()
-	{
+	public static UneiConfiguration tryInstanciate() {
 		Instance.callBuilder();
 		return getInstance();
 	}
-	
+
 	/**
 	 * Gets the UneiConfiguration updater interface.
 	 * 
 	 * @return Returns the Updater.
 	 */
 	public abstract IUpdater getUpdater();
-	
+
 	/**
 	 * Synchronously check for a new version of UneiConfiguration.
 	 * <p>
@@ -78,7 +74,7 @@ public static UneiConfiguration tryInstanciate()
 	 *  {@link IUpdater.Result#FAILED} if the updater was unable to check for a newer version.
 	 */
 	public abstract IUpdater.Result checkVersion();
-	
+
 	/**
 	 * Asynchronously check for a new version of UneiConfiguration.
 	 * <p>