Fixed issues with gradle uplift and added some additional javadoc

build.gradle

@@ -7,6 +7,30 @@ plugins {
     id 'io.github.gradle-nexus.publish-plugin' version '2.0.0'
 }
 
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2025 Ziver Koc
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
 // Load custom properties
 if (project.hasProperty('customProperties')) {
     project.logger.info("Loading custom properties from: ${project.property('customProperties')}")
@@ -47,8 +71,8 @@ dependencies {
 
 group = 'se.koc'
 version = project.hasProperty('releaseVersion') ? releaseVersion : '1.0.0-SNAPSHOT'
-sourceCompatibility = 1.8
-targetCompatibility = 1.8
+sourceCompatibility = 11
+targetCompatibility = 11
 compileJava.options.encoding = 'UTF-8'
 
 java {
@@ -56,14 +80,6 @@ java {
     withJavadocJar()
 }
 
-publishing {
-    publications {
-        maven(MavenPublication) {
-            from(components.java)
-        }
-    }
-}
-
 sourceSets {
     main {
         java {
@@ -80,3 +96,7 @@ sourceSets {
         }
     }
 }
+
+tasks.named('sourcesJar') {
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+}

build_publish.gradle

@@ -38,7 +38,7 @@ nexusPublishing {
 
 publishing {
     publications {
-        mavenJava(MavenPublication) {
+        maven(MavenPublication) {
             from components.java
 
             pom {
@@ -72,7 +72,7 @@ publishing {
 
 signing {
     required { hasProperty("signing.secretKeyRingFile") }
-    sign publishing.publications.mavenJava
+    sign publishing.publications.maven
 }
 
 // Generate version.txt
@@ -92,17 +92,3 @@ Build-time: ${java.time.LocalDateTime.now()}
 }
 
 sourceSets.main.output.dir genOutputDir, builtBy: generateVersionTxt
-
-// Generate additional Jars
-
-task javadocJar(type: Jar) {
-    from javadoc
-}
-
-task sourcesJar(type: Jar) {
-    from sourceSets.main.allSource
-}
-
-artifacts {
-    archives javadocJar, sourcesJar
-}

src/zutil/chart/LineAxis.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -28,7 +28,7 @@ import java.awt.*;
 import java.awt.geom.Line2D;
 
 /**
- *
+ * Class represent a single axis in a graph
  */
 public abstract class LineAxis extends AbstractChart{
 

src/zutil/converter/Converter.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -411,18 +411,18 @@ public class Converter {
             return null;
         try {
             if (     c == String.class) 	return (T) data;
-            else if (c == Integer.class) 	return (T) new Integer(data);
-            else if (c == int.class) 		return (T) new Integer(data);
-            else if (c == Long.class) 		return (T) new Long(data);
-            else if (c == long.class) 		return (T) new Long(data);
-            else if (c == Float.class) 		return (T) new Float(data);
-            else if (c == float.class) 		return (T) new Float(data);
-            else if (c == Double.class) 	return (T) new Double(data);
-            else if (c == double.class) 	return (T) new Double(data);
+            else if (c == Integer.class) 	return (T) Integer.valueOf(data);
+            else if (c == int.class) 		return (T) Integer.valueOf(data);
+            else if (c == Long.class) 		return (T) Long.valueOf(data);
+            else if (c == long.class) 		return (T) Long.valueOf(data);
+            else if (c == Float.class) 		return (T) Float.valueOf(data);
+            else if (c == float.class) 		return (T) Float.valueOf(data);
+            else if (c == Double.class) 	return (T) Double.valueOf(data);
+            else if (c == double.class) 	return (T) Double.valueOf(data);
             else if (c == Boolean.class) 	return (T) Boolean.valueOf(data);
             else if (c == boolean.class) 	return (T) Boolean.valueOf(data);
-            else if (c == Byte.class) 		return (T) new Byte(data);
-            else if (c == byte.class) 		return (T) new Byte(data);
+            else if (c == Byte.class) 		return (T) Byte.valueOf(data);
+            else if (c == byte.class) 		return (T) Byte.valueOf(data);
             else if (byte[].class.isAssignableFrom(c))
                                             return (T) Base64Decoder.decode(data);
         } catch (Exception e) {

src/zutil/db/DBQueue.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -45,8 +45,9 @@ import java.util.Queue;
  * 		`data` BINARY NOT NULL
  * 	);
  * 	</PRE>
- * @author Ziver
  *
+ * @author Ziver
+ * @param <E> The type of the elements in the queue.
  */
 public class DBQueue<E> implements Queue<E>{
     private DBConnection db;

src/zutil/db/bean/DBBeanObjectDSO.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -35,15 +35,17 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
- * A intermediate class for loading Objects of generic Classes.
+ * An intermediate class for loading Objects of generic Classes.
  * The extending class must set the "superBean" parameter to true in {@link DBBean.DBTable}.
  * The Object that is stored must use Configurator to define what fields that should be stored.
- *
+ * <p>
  * This class needs two fields in DB:
  * <ul>
  *     <li>String type: defining the class name</li>
  *     <li>Text config: the object configuration is stored as JSON</li>
  * </ul>
+ *
+ * @param <T> The type of the Object to be stored.
  */
 public abstract class DBBeanObjectDSO<T> extends DBBean {
     private static final Logger logger = LogUtil.getLogger();

src/zutil/db/handler/ListSQLResult.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -38,6 +38,7 @@ import java.util.List;
  * The handler will add the first column of every row to a list.
  *
  * @author Ziver
+ * @param <T> The type that the query will return.
  */
 public class ListSQLResult<T> implements SQLResultHandler<List<T>> {
 

src/zutil/db/handler/SimpleSQLResult.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -34,6 +34,7 @@ import java.sql.Statement;
  * Returns the first column of the first row from the query
  *
  * @author Ziver
+ * @param <T> THe type that the query will return.
  */
 public class SimpleSQLResult<T> implements SQLResultHandler<T> {
     /**

src/zutil/io/MultiPrintStream.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -34,8 +34,9 @@ import java.lang.reflect.Modifier;
 import java.util.*;
 
 /**
+ * This class can print strings to multiple PrintStreams
+ *
  * @author Ziver
- * this class can print strings to multiple PrintStreams
  */
 public class MultiPrintStream extends PrintStream {
     //the print streams that will print

src/zutil/net/FTPClient.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -168,9 +168,10 @@ public class FTPClient extends Thread{
     /**
      * Returns a LinkedList with names of all the files in the directory
      *
-     * @deprecated
-     * @return List with filenames
+     * @deprecated THe function is incomplete and does not properly parse filenames
+     * @return List with filenames as Strings
      */
+    @Deprecated
     public String[] getFileList(String path) throws IOException{
         BufferedInputStream data_in = getDataInputStream();
         sendCommand("NLST " +path);
@@ -185,9 +186,10 @@ public class FTPClient extends Thread{
     /**
      * Returns information about a file or directory
      *
-     * @deprecated
+     * @deprecated THe function is incomplete and does not properly parse filenames
      * @return a List of Strings with information
      */
+    @Deprecated
     public String getFileInfo(String path) throws IOException{
         Pattern regex = Pattern.compile("\\s+");
 

src/zutil/net/acme/AcmeChallengeFactory.java

@@ -1,9 +1,36 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2025 Ziver Koc
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
 package zutil.net.acme;
 
 import org.shredzone.acme4j.Authorization;
 import org.shredzone.acme4j.challenge.Challenge;
 import org.shredzone.acme4j.exception.AcmeException;
 
+/**
+ * Interface for handling challenge requests flow.
+ */
 public interface AcmeChallengeFactory {
 
     /**

src/zutil/net/dns/packet/DnsConstants.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -25,7 +25,7 @@
 package zutil.net.dns.packet;
 
 /**
- *
+ * A data class containing DNS constants.
  */
 public final class DnsConstants {
 

src/zutil/net/dns/packet/DnsPacketHeader.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -27,6 +27,8 @@ package zutil.net.dns.packet;
 import zutil.parser.binary.BinaryStruct;
 
 /**
+ * Class that implements a DNS packet header.
+ *
  * @see <a href="http://tools.ietf.org/html/rfc1035">DNS Spec (rfc1035)</a>
  * @author Ziver
  */

src/zutil/net/dns/packet/DnsPacketQuestion.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -27,6 +27,8 @@ package zutil.net.dns.packet;
 import zutil.parser.binary.BinaryStruct;
 
 /**
+ * A Class implementing the DSN question packet.
+ *
  * @see <a href="http://tools.ietf.org/html/rfc1035">DNS Spec (rfc1035)</a>
  * @author Ziver
  */

src/zutil/net/dns/packet/DnsPacketResource.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -28,6 +28,8 @@ import zutil.parser.binary.BinaryStruct;
 
 
 /**
+ * A Class implementing the DNS resource packet.
+ *
  * @see <a href="http://tools.ietf.org/html/rfc1035">DNS Spec (rfc1035)</a>
  * @author Ziver
  */

src/zutil/net/http/HttpServer.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -258,12 +258,12 @@ public class HttpServer extends ThreadedTCPNetworkServer{
                 } else {
                     synchronized (sessions) {
                         session = new ConcurrentHashMap<>();
-                        session.put(SESSION_KEY_ID, "" + nextSessionId);
+                        String newSessionId = generateSessionId();
+                        session.put(SESSION_KEY_ID, newSessionId);
                         session.put(SESSION_KEY_TTL, new Timer(SESSION_TTL).start());
 
-                        sessions.put("" + nextSessionId, session);
-                        out.setCookie(SESSION_KEY_ID, "" + nextSessionId);
-                        ++nextSessionId;
+                        sessions.put(newSessionId, session);
+                        out.setCookie(SESSION_KEY_ID, newSessionId);
                     }
                 }
 
@@ -319,6 +319,9 @@ public class HttpServer extends ThreadedTCPNetworkServer{
         }
     }
 
+    private String generateSessionId() {
+        return "" + nextSessionId++;
+    }
 
     protected static void logRequest(HttpHeader header,
                                    Map<String,Object> session,

src/zutil/net/mqtt/packet/MqttPacketHeader.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -31,7 +31,7 @@ import java.io.InputStream;
 import java.io.OutputStream;
 
 /**
- *
+ * The Class implements a MQTT generic header.
  */
 public class MqttPacketHeader implements BinaryStruct {
 

src/zutil/parser/BEncodedParser.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -70,7 +70,7 @@ public class BEncodedParser {
                     throw new ParseException("Corrupt bEncoding", index.i);
                 tmp = data.substring(index.i, end);
                 index.i += tmp.length() + 1;
-                return new DataNode(new Long(tmp));
+                return new DataNode(Long.valueOf(tmp));
             /*
              * Lists are prefixed with a l and terminated by an e. The list
              * should contain a series of bEncoded elements. For example, the

src/zutil/plugin/PluginManager.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -52,6 +52,7 @@ import java.util.logging.Logger;
  * </pre>
  *
  * @author Ziver
+ * @param <T> The class of the plugin interface that the plugins fulfills.
  */
 public class PluginManager<T> implements Iterable<PluginData>{
     private static Logger log = LogUtil.getLogger();

src/zutil/struct/CircularBuffer.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -30,9 +30,10 @@ import java.util.NoSuchElementException;
 
 /**
  * This class is a first in first out circular buffer with a fixed size.
- * If the size is exceed then the oldest item will be removed.
+ * If the size is exceeded then the oldest item will be removed.
  *
- * Created by Ziver on 2015-09-22.
+ * @author Ziver
+ * @param <T> The type of value that the buffer will hold.
  */
 public class CircularBuffer<T> implements Iterable<T>{
 

src/zutil/struct/MultiIterator.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -34,6 +34,8 @@ import java.util.Queue;
  * This class will start by iterating through the first Iterator until the
  * end of it has been reach and then the next iterator will be used until
  * all iterators no longer has any items.
+ *
+ * @param <T> The type of items that the iterator will iterate over.
  */
 public class MultiIterator<T> implements Iterator<T> {
     private Queue<Iterator<T>> queue = new LinkedList<>();

src/zutil/struct/TimedHashSet.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -32,6 +32,8 @@ import java.util.Map;
 
 /**
  * This is a timed HashSet. Each entry has a limited time to live.
+ *
+ * @param <T> The type of data that shall be stored.
  */
 public class TimedHashSet<T> {
 

src/zutil/ui/Console.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -45,7 +45,7 @@ import java.io.PrintStream;
  *
  */
 public class Console{
-    public static String DEFAULT_ICON = "zutil/data/JavaConsole.png";
+    public static String DEFAULT_ICON = "zutil/data/console_icon.png";
     // UI things
     private JFrame frame;
     private JTextPane console;

src/zutil/ui/conf/Configurator.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -51,10 +51,8 @@ import java.util.logging.Logger;
  * The configured object will automatically be registered as a listener if it also implements
  * these interfaces.
  *
- * <p>
- * Supported field types: String, int, boolean, enum
- * <p>
- * Created by Ziver
+ * @author Ziver
+ * @param <T> Represents the type of the field that will be configured, Currently supported fields are: String, int, boolean, enum
  */
 public class Configurator<T> {
     private static final Logger logger = LogUtil.getLogger();

src/zutil/ui/wizard/Wizard.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -48,10 +48,8 @@ import java.util.ResourceBundle;
 public class Wizard implements ActionListener{
     public static final boolean DEBUG = false;
 
-    /** Some defoult backgrounds for the sidebar */
-    public static final String BACKGROUND_1 = "zutil/data/wizard1.jpg";
-    public static final String BACKGROUND_2 = "zutil/data/wizard2.jpg";
-    public static final String BACKGROUND_3 = "zutil/data/wizard3.png";
+    /** Some default backgrounds for the sidebar */
+    public static final String DEFAULT_BACKGROUND = "zutil/data/wizard_background.jpg";
 
     /** An list with all the previous pages and the current at the beginning */
     private HistoryList<WizardPage> pages;
@@ -62,7 +60,7 @@ public class Wizard implements ActionListener{
     /** This is the user listener that handles all the values after the wizard */
     private WizardListener listener;
 
-    /** This is the old validation fail, this is needed for reseting purposes */
+    /** This is the old validation fail, this is needed for resting purposes */
     private ValidationFail oldFail;
 
 
@@ -74,7 +72,7 @@ public class Wizard implements ActionListener{
      * Creates a new Wizard
      */
     public Wizard(WizardListener listener, WizardPage start) {
-        this(listener, start, BACKGROUND_1);
+        this(listener, start, DEFAULT_BACKGROUND);
     }
 
     /**

test/zutil/MimeTypeUtilTest.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2020 Ziver Koc
+ * Copyright (c) 2020-2025 Ziver Koc
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -32,9 +32,9 @@ public class MimeTypeUtilTest {
 
     @Test
     public void getMimeByExtension() {
-        assertEquals("image/jpeg", MimeTypeUtil.getMimeByExtension("jpg").toString());
-        assertEquals("image/png", MimeTypeUtil.getMimeByExtension("png").toString());
-        assertEquals("video/mp4", MimeTypeUtil.getMimeByExtension("mp4").toString());
-        assertEquals("video/x-matroska", MimeTypeUtil.getMimeByExtension("mkv").toString());
+        assertEquals("image/jpeg", "" + MimeTypeUtil.getMimeByExtension("jpg"));
+        assertEquals("image/png", "" + MimeTypeUtil.getMimeByExtension("png"));
+        assertEquals("video/mp4", "" + MimeTypeUtil.getMimeByExtension("mp4"));
+        assertEquals("video/x-matroska", "" + MimeTypeUtil.getMimeByExtension("mkv"));
     }
 }