Java – Ant can’t find the JAR file? Trying to do an sshexec task

I'm trying to use the sshexec task for ANT on my OSX box, when I try to run it I get the error listed below. I've downloaded the jsch jar file from: http://www.jcraft.com/jsch/index.html version jsch-0.1.43.jar

I placed that file into /usr/share/ant/lib and still the error occurs. any ideas?

thanks

<target name="testme" depends="">
 <sshexec host="myhost1" username="${username}" command="ls -la" keyfile="${user.home}/.ssh/id_rsa" />
</target>

I get the following error:

BUILD FAILED
/Users/jim/Code/myapp/deploy.xml:16: Problem: failed to create task or type sshexec
Cause: the class org.apache.tools.ant.taskdefs.optional.ssh.SSHExec was not found.
        This looks like one of Ant's optional components.
Action: Check that the appropriate optional JAR exists in
        -/usr/share/ant/lib
        -/Users/jim/.ant/lib
        -a directory added on the command line with the -lib argument

Do not panic, this is a common problem.
The commonest cause is a missing JAR.

UPDATE::::
I installed a new version of ANT from apache and put it in /usr/local and moved the jsch file into /usr/local/ant/lib and it fixes the error, however now I have a new one when I run it with: ant -f deploy.xml restart

BUILD FAILED
    /Users/jim/Code/myapp/deploy.xml:20: java.lang.NoSuchMethodError: com.jcraft.jsch.ChannelExec.setExtOutputStream(Ljava/io/OutputStream;)V
        at org.apache.tools.ant.taskdefs.optional.ssh.SSHExec.executeCommand(SSHExec.java:265)
        at org.apache.tools.ant.taskdefs.optional.ssh.SSHExec.execute(SSHExec.java:194)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
        at org.apache.tools.ant.Task.perform(Task.java:348)
        at org.apache.tools.ant.Target.execute(Target.java:390)
        at org.apache.tools.ant.Target.performTasks(Target.java:411)
        at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1397)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1366)
        at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1249)
        at org.apache.tools.ant.Main.runBuild(Main.java:801)
        at org.apache.tools.ant.Main.startAnt(Main.java:218)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)

Here is my diagnostic information:

http://pastebin.org/877058