diff --git a/hutool-core/src/main/java/cn/hutool/core/io/FileTypeUtil.java b/hutool-core/src/main/java/cn/hutool/core/io/FileTypeUtil.java
index f7eaf8774..5d8faf9b4 100644
--- a/hutool-core/src/main/java/cn/hutool/core/io/FileTypeUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/io/FileTypeUtil.java
@@ -1,5 +1,7 @@
 package cn.hutool.core.io;
 
+import cn.hutool.core.lang.Console;
+import cn.hutool.core.map.MapUtil;
 import cn.hutool.core.util.HexUtil;
 import cn.hutool.core.util.StrUtil;
 
@@ -50,9 +52,11 @@ public class FileTypeUtil {
 	 * @return 文件类型，未找到为{@code null}
 	 */
 	public static String getType(String fileStreamHexHead) {
-		for (Entry<String, String> fileTypeEntry : FILE_TYPE_MAP.entrySet()) {
-			if (StrUtil.startWithIgnoreCase(fileStreamHexHead, fileTypeEntry.getKey())) {
-				return fileTypeEntry.getValue();
+		if(MapUtil.isNotEmpty(FILE_TYPE_MAP)){
+			for (final Entry<String, String> fileTypeEntry : FILE_TYPE_MAP.entrySet()) {
+				if (StrUtil.startWithIgnoreCase(fileStreamHexHead, fileTypeEntry.getKey())) {
+					return fileTypeEntry.getValue();
+				}
 			}
 		}
 		byte[] bytes = (HexUtil.decodeHex(fileStreamHexHead));
diff --git a/hutool-core/src/test/java/cn/hutool/core/io/FileTypeUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/io/FileTypeUtilTest.java
index bd2dc1a3e..03b82e6d9 100755
--- a/hutool-core/src/test/java/cn/hutool/core/io/FileTypeUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/io/FileTypeUtilTest.java
@@ -5,9 +5,7 @@ import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
 
-import java.io.BufferedInputStream;
-import java.io.File;
-import java.io.IOException;
+import java.io.*;
 
 /**
  * 文件类型判断单元测试
@@ -92,4 +90,10 @@ public class FileTypeUtilTest {
 		Assert.assertEquals("txt", type);
 	}
 
+	@Test
+	@Ignore
+	public void issue3024Test() {
+		String x = FileTypeUtil.getType(FileUtil.getInputStream("d:/test/TEST_WPS_DOC.doc"),true);
+		System.out.println(x);
+	}
 }