diff --git a/.gitignore b/.gitignore
index 5ff6309..1ae1cc7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,33 +4,11 @@ target/
 !**/src/test/**/target/
 
 ### IntelliJ IDEA ###
-.idea/modules.xml
-.idea/jarRepositories.xml
-.idea/compiler.xml
-.idea/libraries/
+.idea/
 *.iws
 *.iml
 *.ipr
 
-### Eclipse ###
-.apt_generated
-.classpath
-.factorypath
-.project
-.settings
-.springBeans
-.sts4-cache
-
-### NetBeans ###
-/nbproject/private/
-/nbbuild/
-/dist/
-/nbdist/
-/.nb-gradle/
-build/
-!**/src/main/**/build/
-!**/src/test/**/build/
-
 ### VS Code ###
 .vscode/
 
diff --git a/.idea/.gitignore b/.idea/.gitignore
deleted file mode 100644
index 13566b8..0000000
--- a/.idea/.gitignore
+++ /dev/null
@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Editor-based HTTP Client requests
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
deleted file mode 100644
index 4da12c0..0000000
--- a/.idea/encodings.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="Encoding">
-    <file url="file://$PROJECT_DIR$/rpcnis-core/src/main/java" charset="UTF-8" />
-    <file url="file://$PROJECT_DIR$/rpcnis-core/src/main/resources" charset="UTF-8" />
-    <file url="file://$PROJECT_DIR$/rpcnis-serializer/src/main/java" charset="UTF-8" />
-    <file url="file://$PROJECT_DIR$/rpcnis-serializer/src/main/resources" charset="UTF-8" />
-    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
-    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
deleted file mode 100644
index 0fe7302..0000000
--- a/.idea/misc.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="DiscordProjectSettings">
-    <option name="show" value="ASK" />
-    <option name="description" value="" />
-  </component>
-  <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="MavenProjectsManager">
-    <option name="originalFiles">
-      <list>
-        <option value="$PROJECT_DIR$/pom.xml" />
-        <option value="$PROJECT_DIR$/rpcnis-serializer/pom.xml" />
-      </list>
-    </option>
-  </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_20" default="true" project-jdk-name="openjdk-20" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
deleted file mode 100644
index 94a25f7..0000000
--- a/.idea/vcs.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
-  </component>
-</project>
\ No newline at end of file
diff --git a/rpcnis-core/pom.xml b/rpcnis-core/pom.xml
index 659e3ac..7d66b05 100644
--- a/rpcnis-core/pom.xml
+++ b/rpcnis-core/pom.xml
@@ -9,8 +9,9 @@
     <version>1.0-SNAPSHOT</version>
 
     <properties>
-        <maven.compiler.source>20</maven.compiler.source>
-        <maven.compiler.target>20</maven.compiler.target>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <maven.plugin.validation>verbose</maven.plugin.validation>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
@@ -22,12 +23,6 @@
             <version>5.10.0</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.junit.platform</groupId>
-            <artifactId>junit-platform-runner</artifactId>
-            <version>1.10.0</version>
-            <scope>test</scope>
-        </dependency>
 
         <dependency>
             <groupId>com.npcnis</groupId>
@@ -41,31 +36,9 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.22.0</version>
-                <dependencies>
-                    <dependency>
-                        <groupId>org.junit.platform</groupId>
-                        <artifactId>junit-platform-surefire-provider</artifactId>
-                        <version>1.2.0</version>
-                    </dependency>
-                </dependencies>
-                <configuration>
-                    <additionalClasspathElements>
-                        <additionalClasspathElement>src/test/java/</additionalClasspathElement>
-                    </additionalClasspathElements>
-                </configuration>
+                <version>3.1.2</version>
             </plugin>
         </plugins>
     </build>
 
-    <reporting>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-report-plugin</artifactId>
-                <version>2.22.0</version>
-            </plugin>
-        </plugins>
-    </reporting>
-
 </project>
\ No newline at end of file
diff --git a/rpcnis-core/src/main/java/com/npcnis/core/Penis.java b/rpcnis-core/src/main/java/com/npcnis/core/Penis.java
new file mode 100644
index 0000000..0605d47
--- /dev/null
+++ b/rpcnis-core/src/main/java/com/npcnis/core/Penis.java
@@ -0,0 +1,8 @@
+package com.npcnis.core;
+
+public class Penis {
+
+    public static void main(String[] args) {
+        System.out.println("Test");
+    }
+}
diff --git a/rpcnis-core/src/test/java/com/npcnis/cor/PenisTest.java b/rpcnis-core/src/test/java/com/npcnis/cor/PenisTest.java
new file mode 100644
index 0000000..d1731ed
--- /dev/null
+++ b/rpcnis-core/src/test/java/com/npcnis/cor/PenisTest.java
@@ -0,0 +1,14 @@
+package com.npcnis.cor;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class PenisTest {
+
+    @Test
+    public void testPenis() {
+        assertTrue(true);
+    }
+
+}
diff --git a/rpcnis-core/src/test/java/tests/PenisTest.java b/rpcnis-core/src/test/java/tests/PenisTest.java
deleted file mode 100644
index dbf2c69..0000000
--- a/rpcnis-core/src/test/java/tests/PenisTest.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package tests;
-
-import junit.framework.TestCase;
-import org.junit.Test;
-
-public class PenisTest extends TestCase {
-
-    @Test
-    public void testPenis() {
-        assertTrue(true);
-    }
-
-}