diff --git a/hutool-core/src/test/java/cn/hutool/core/util/StrUtilJmh.java b/hutool-core/src/test/java/cn/hutool/core/util/StrUtilJmh.java
deleted file mode 100644
index 3c4ef5b06..000000000
--- a/hutool-core/src/test/java/cn/hutool/core/util/StrUtilJmh.java
+++ /dev/null
@@ -1,74 +0,0 @@
-package cn.hutool.core.util;
-
-import cn.hutool.core.collection.CollUtil;
-import lombok.Data;
-import org.openjdk.jmh.annotations.Benchmark;
-import org.openjdk.jmh.annotations.BenchmarkMode;
-import org.openjdk.jmh.annotations.Fork;
-import org.openjdk.jmh.annotations.Measurement;
-import org.openjdk.jmh.annotations.Mode;
-import org.openjdk.jmh.annotations.OutputTimeUnit;
-import org.openjdk.jmh.annotations.Scope;
-import org.openjdk.jmh.annotations.State;
-import org.openjdk.jmh.annotations.Threads;
-import org.openjdk.jmh.annotations.Warmup;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.concurrent.TimeUnit;
-
-@BenchmarkMode(Mode.AverageTime)//每次执行平均花费时间
-@Warmup(iterations = 5) //预热5次调用
-@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) // 执行5此，每次1秒
-@Threads(1) //单线程
-@Fork(1) //
-@OutputTimeUnit(TimeUnit.NANOSECONDS) // 单位：纳秒
-@State(Scope.Benchmark) // 共享域
-public class StrUtilJmh {
-
-	@Benchmark
-	public void joinJmh() {
-		CollUtil.join(initSize(20), ",", (org)-> String.valueOf(org.getProvinceId()));
-	}
-
-	@Benchmark
-	public void joinJmh2() {
-		final List<Org> orgs = initSize(20);
-		final StringBuilder sb = new StringBuilder();
-		final int size = orgs.size();
-		boolean isFirst = true;
-		for(int i = 0; i < size; i++){
-			if (isFirst) {
-				isFirst = false;
-			} else {
-				sb.append(",");
-			}
-			sb.append(orgs.get(i).getProvinceId());
-		}
-		sb.toString();
-	}
-
-	/**
-	 * 来自：ibeetl
-	 * 模拟测试数据,建议使用较大size以验证效果
-	 * @param size 数量
-	 * @return 对象List
-	 */
-	public static List<Org> initSize(int size){
-		Org org = new Org();
-		org.setProvinceId(21);
-		org.setName("北京");
-		ArrayList<Org> list = new ArrayList<>();
-		for(int i=0;i<size;i++){
-			list.add(org);
-		}
-		return list;
-	}
-
-	@Data
-	public static class Org {
-		private Integer id;
-		private Integer provinceId;
-		private String name;
-	}
-}