This bug was originally found in developers' comments for 4651460.
 (JDC bug database)
--------------------------------------------------------------
  java.util.zip and winzip32.exe can NOT operate zip-files including
  Japanese Path well. so-called garbled characters!! (UTF-8 vs MS932)
  Please resolve this too!!
-----
  This is a kind of internationalization bug, too.
  Because most ZIP application encode/decode file entries in platform's
  native encoding, Java ZIP application isn't compatible with them.
  I recommend to add a charset parameter to ZIP-related methods.
-----
  And the bug is still in the newest JDK1.4.
  We hope this problem can be resolved sooner.
--------------------------------------------------------------

Java2's java.util.zip cannot get files properly from a zipfile which is
made with Winzip which is commonly-used zip/unzip software when Japanese
name is included in the zipfile.
This is very inconvenient for Japanese developers and users.