add test

hutool-core/src/test/java/cn/hutool/core/thread/ExecutorBuilderTest.java

@@ -0,0 +1,26 @@
+package cn.hutool.core.thread;
+
+import cn.hutool.core.lang.Console;
+import org.junit.Ignore;
+import org.junit.Test;
+
+import java.util.concurrent.ThreadPoolExecutor;
+
+public class ExecutorBuilderTest {
+
+	@Test
+	@Ignore
+	public void CallerRunsPolicyTest(){
+		// https://gitee.com/dromara/hutool/pulls/660
+		final ThreadPoolExecutor executor = ExecutorBuilder.create().setCorePoolSize(1).setMaxPoolSize(1).setHandler(RejectPolicy.BLOCK.getValue()).build();
+		executor.execute(()-> Console.log("### 1"));
+		executor.execute(()-> Console.log("### 2"));
+
+		executor.shutdown();
+		executor.execute(()-> Console.log("### 3"));
+		executor.execute(()-> Console.log("### 4"));
+		executor.execute(()-> Console.log("### 5"));
+		executor.execute(()-> Console.log("### 6"));
+		ThreadUtil.sleep(3000);
+	}
+}