It finally compiles now

dependency-reduced-pom.xml

@@ -178,7 +178,7 @@
     <adventure-minimessage.version>4.1.0-SNAPSHOT</adventure-minimessage.version>
     <asm.version>9.0</asm.version>
     <build.number>unknown</build.number>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.target>17</maven.compiler.target>
     <bungeecord-chat.version>1.12-SNAPSHOT</bungeecord-chat.version>
     <spigot.version>[1.17,]</spigot.version>
     <protocollib.version>4.7.0</protocollib.version>
@@ -186,7 +186,7 @@
     <adventure-api.version>4.7.0</adventure-api.version>
     <paper-api.version>[1.16,]</paper-api.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.source>17</maven.compiler.source>
     <adventure-serializer.version>4.7.0</adventure-serializer.version>
   </properties>
 </project>

nms/v1_17_R1/pom.xml

@@ -15,8 +15,8 @@
     <version>1.0-SNAPSHOT</version>
 
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
         <spigot.version>1.17.1-R0.1-SNAPSHOT</spigot.version>

nms/v1_18_R1/pom.xml

@@ -14,8 +14,8 @@
     <version>1.0-SNAPSHOT</version>
 
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
         <spigot.version>1.18.1-R0.1-SNAPSHOT</spigot.version>
@@ -47,9 +47,15 @@
         <dependency>
             <groupId>it.unimi.dsi</groupId>
             <artifactId>fastutil</artifactId>
-            <version>8.5.6</version>
+            <version>8.5.8</version>
             <scope>compile</scope>
         </dependency>
+        <dependency>
+            <groupId>com.mojang</groupId>
+            <artifactId>datafixerupper</artifactId>
+            <version>4.1.27</version>
+            <scope>provided</scope>
+        </dependency>
     </dependencies>
 
     <build>

nms/v1_18_R2/pom.xml

@@ -14,8 +14,8 @@
     <version>1.0-SNAPSHOT</version>
 
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
         <spigot.version>1.18.2-R0.1-SNAPSHOT</spigot.version>

plugin/pom.xml

@@ -15,8 +15,8 @@
     <version>10.0.28-SNAPSHOT</version>
 
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
@@ -81,7 +81,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-shade-plugin</artifactId>
-                <version>3.2.4</version>
+                <version>3.3.0</version>
                 <executions>
                     <execution>
                         <phase>package</phase>
@@ -210,6 +210,23 @@
             <scope>compile</scope>
             <optional>true</optional>
         </dependency>
+        <dependency>
+            <groupId>com.mojang</groupId>
+            <artifactId>datafixerupper</artifactId>
+            <version>4.1.27</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+            <version>2.17.2</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.netty</groupId>
+            <artifactId>netty-all</artifactId>
+            <version>4.1.76.Final</version>
+        </dependency>
     </dependencies>
 
 </project>

pom.xml

@@ -18,8 +18,8 @@
         <build.number>unknown</build.number>
         <timestamp>${maven.build.timestamp}</timestamp>
         <maven.build.timestamp.format>dd/MM/yyyy HH:mm</maven.build.timestamp.format>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
         <lombok.version>1.18.22</lombok.version>

shared/pom.xml

@@ -14,8 +14,8 @@
     <version>1.0-SNAPSHOT</version>
 
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>