为什么我用java.util.zip.ZipFile打开一个空的ZIP文件会出现异常？

I want to open a ZIP-file, that have no entries with java.util.zip.ZipFile. But on the constructor I get the following exception: 'java.util.zip.ZipException: error in opening zip file'. How can I open the empty ZIP?I want to open a ZIP-file, that have no entries