ftp task hangs with ant

Question

I'm trying to pull out the file through ftp within ant, it get hung with after printing "getting files", so I enabled debug in ant and my output is

[root@LODIVM11SE001 net]# ant -d -f ftp_t.xml
Apache Ant version 1.6.5 compiled on June 2 2005
Buildfile: ftp_t.xml
Adding reference: ant.PropertyHelper
Detected Java version: 1.5 in: /root/jdk1.6.0_10/jre
Detected OS: Linux
Adding reference: ant.ComponentHelper
Setting ro project property: ant.version -> Apache Ant version 1.6.5 compiled on June 2 2005
Setting ro project property: ant.file -> /Test_Framework/tasks/net/ftp_t.xml
Adding reference: ant.projectHelper
Adding reference: ant.parsing.context
Adding reference: ant.targets
parsing buildfile /Test_Framework/tasks/net/ftp_t.xml with URI = file:///Test_Framework/tasks/net/ftp_t.xml
Setting ro project property: ant.project.name -> FTP simple interface - ftp.xml
Adding reference: FTP simple interface - ftp.xml
Setting ro project property: ant.file.FTP simple interface - ftp.xml -> /Test_Framework/tasks/net/ftp_t.xml
Project base dir set to: /Test_Framework/tasks/net
 +Target:
 +Target: ftpget
Setting project property: ftpServerName -> xxxxx
Setting project property: ftpUser -> xxxxx
Setting project property: ftpPassword -> xxxx
Setting project property: ftpRemoteDir -> /test
Setting project property: ftpRemoteFile -> ReadMe.txt
Setting project property: ftpLocalDir -> /local/test
Attempting to create object of type org.apache.tools.ant.helper.DefaultExecutor
Adding reference: ant.executor
Build sequence for target(s) `ftpget' is [ftpget]
Complete build sequence is [ftpget, ]

ftpget:
     [echo] FTP getting 'ReadMe.txt' from '/test' to '/local/test'
      [ftp] Opening FTP connection to xxxxx
      [ftp] connected
      [ftp] logging in to FTP server
      [ftp] login succeeded
      [ftp] changing the remote directory
      [ftp] getting files
Could not load a dependent class (com/sun/media/jai/codec/FileSeekableStream) for type image
Could not load a dependent class (com/jcraft/jsch/UserInfo) for type sshexec
Could not load a dependent class (com/jcraft/jsch/UserInfo) for type scp
Could not load a dependent class (jdepend/xmlui/JDepend) for type jdepend
Could not load a dependent class (junit/framework/Test) for type junit
fileset: Setup scanner in dir /local/test with patternSet{ includes: [ReadMe.txt] excludes: [] }

My code

            <echo message="FTP getting '${ftpRemoteFile}' from '${ftpRemoteDir}' to '${ftpLocalDir}'"/>
            <ftp action="get"
                    server="${ftpServerName}"
                    userid="${ftpUser}"
                    password="${ftpPassword}"
                    verbose="true"
                    remotedir="${ftpRemoteDir}"
                    skipFailedTransfers="true">
                    <fileset dir="${ftpLocalDir}">
                            <include name="${ftpRemoteFile}"/>
                    </fileset>
            </ftp>

Note: Normal ftp is working fine. I'm using Linux 64bit, ant 1.6.5 and java 1.6.10

Answer 1

Ant FTP task has require dependencies, Libraries that must be on classpath for it to function properly. See link below,

http://ant.apache.org/manual/install.html#commons-net

To use the FTP task, you need jakarta-oro 2.0.8 or later, and commons-net

Answer 2

Looks like everything works fine until you actually try and retrieve the data. FTP uses two channels; one for control and one for data. This works out fine until a firewall denies the data connection. Passive mode attempts to work around this. Does your FTP library work have a 'passive mode', or 'PASV' option?