избавляемся от странного кода

core/src/main/java/mc/core/network/NetInputStream.java

@@ -2,10 +2,11 @@ package mc.core.network;
 
 import lombok.Getter;
 import lombok.Setter;
+import org.jetbrains.annotations.NotNull;
 
-import java.io.IOException;
 import java.io.InputStream;
 import java.util.UUID;
+import java.util.concurrent.atomic.AtomicInteger;
 
 public abstract class NetInputStream extends InputStream {
     @Getter
@@ -23,7 +24,7 @@ public abstract class NetInputStream extends InputStream {
     public abstract short readShort();
     public abstract int readInt();
     public abstract int readVarInt();
-    public abstract int readVarInt(int[] countReadBytes);
+    public abstract int readVarInt(AtomicInteger countReadBytes);
     public abstract long readLong();
     public abstract float readFloat();
     public abstract double readDouble();
@@ -33,22 +34,22 @@ public abstract class NetInputStream extends InputStream {
     public abstract void skipBytes(int count);
 
     @Override
-    public int read() throws IOException {
+    public int read() {
         return readByte();
     }
 
     @Override
-    public int read(byte[] b) throws IOException {
+    public int read(@NotNull byte[] b) {
         return readBytes(b);
     }
 
     @Override
-    public int read(byte[] b, int off, int len) throws IOException {
+    public int read(@NotNull byte[] b, int off, int len) {
         return readBytes(b, off, len);
     }
 
     @Override
-    public long skip(long n) throws IOException {
+    public long skip(long n) {
         skipBytes((int) n);
         return n;
     }