chore[field]: field visibility

net/src/main/java/com/zfoo/net/task/TaskBus.java

@@ -44,7 +44,7 @@ public final class TaskBus {
 
     // EN: The size of the thread pool can also be specified through the provider thread configuration
     // CN: 线程池的大小，也可以通过provider thread配置指定
-    public static final int EXECUTOR_SIZE;
+    private static final int EXECUTOR_SIZE;
 
     /**
      * EN: Use different thread pools to achieve isolation between thread pools without affecting each other

net/src/test/java/com/zfoo/net/router/SignalBridgeTest.java

@@ -27,7 +27,7 @@ import java.util.concurrent.CountDownLatch;
 @Ignore
 public class SignalBridgeTest {
 
-    private final int executorSize = EventBus.EXECUTORS_SIZE;
+    private final int executorSize = Runtime.getRuntime().availableProcessors() * 2;
     private final int count = 100_0000;
     private final int totalIndex = 10;