Java 7 prevents FTP transfers on Windows Vista and 7 if firewall is on. Any ideas?

Question

Java 7 prevents FTP transfers on Windows Vista and 7.

In FTP, before a file is transferred a PORT or a PASV command must be sent. As soon as one of the commands is

Answer 1

Actually TFTP under JDK7 on windows 7 also have the same problem, the MS hotfix does resolve FTP issue, but still not works for TFTP. Seems Oracle should report the same problem to MS and get another hotfix to resolve TFTP issue as well.

Answer 2

I've submitted a bug report to Oracle, see bugs.sun.com/bugdatabase/view_bug.do?bug_id=7077696

They've marked the priority as low, which makes me think that they don't quite understand the magnitude of the problem, i.e. that FTP is broken on Java/Windows. I forgot to state that explicitly in the bug report. If anyone else feels like it should have a higher priority please add a comment to the Oracle bug report.

I just noticed that you can also 'vote' for the bug, so please give it a vote if you agree it's significant.

Answer 3

We tested the Windows hotfix http://support.microsoft.com/kb/2754804 and confirmed that it did resolve the problem.