DEC-17006 fix: 【S3插件】配置输入不存在的路径也可以连接成功

src/main/java/com/fanruan/fs/s3/repository/core/S3ResourceRepository.java

@@ -210,7 +210,8 @@ public class S3ResourceRepository extends BaseResourceRepository {
 
     @Override
     public boolean isDirectory(String path) {
-        if (path.endsWith(DELIMITER)) {
+
+        if (path.endsWith(DELIMITER) && exist(path)) {
             return true;
         }
         ObjectListing listing = s3.listObjects(bucket, path);