Fix crash on macos

src/main/java/me/cortex/voxy/client/config/VoxyConfig.java

@@ -28,7 +28,7 @@ public class VoxyConfig implements OptionStorage<VoxyConfig> {
     public boolean enableRendering = true;
     public boolean ingestEnabled = true;
     public int sectionRenderDistance = 16;
-    public int serviceThreads = (int) Math.max(CpuLayout.CORES.length/1.5, 1);
+    public int serviceThreads = (int) Math.max(CpuLayout.getCoreCount()/1.5, 1);
     public float subDivisionSize = 64;
     public boolean renderVanillaFog = false;
     public boolean useEnvironmentalFog = false;

src/main/java/me/cortex/voxy/common/thread/ServiceThreadPool.java

@@ -29,7 +29,7 @@ public class ServiceThreadPool {
     }
 
     public ServiceThreadPool(int threadCount, int priority) {
-        if (CpuLayout.CORES.length-2 < threadCount) {
+        if (CpuLayout.getCoreCount()-2 < threadCount) {
             Logger.warn("The thread count over core count -2, performance degradation possible");
         }
 
@@ -38,7 +38,7 @@ public class ServiceThreadPool {
         for (int i = 0; i < threadCount; i++) {
             int threadId = i;
             var worker = new Thread(this.threadGroup, ()->{
-                if (CpuLayout.CORES.length>3) {
+                if (CpuLayout.CORES!=null && CpuLayout.CORES.length>3) {
                     //Set worker affinity if possible
                     CpuLayout.setThreadAffinity(CpuLayout.CORES[2 + (threadId % (CpuLayout.CORES.length - 2))]);
                 }

src/main/java/me/cortex/voxy/common/util/cpu/CpuLayout.java

@@ -156,4 +156,12 @@ public class CpuLayout {
             Thread.sleep(100);
         }
     }
+
+    public static int getCoreCount() {
+        if (CORES==null) {
+            return Runtime.getRuntime().availableProcessors();
+        } else {
+            return CORES.length;
+        }
+    }
 }