I can't get the <cfftp action="existsFile" ...> to work for me.
I get an error trying to run it says:

DateTime - 06/08/2009 03:00:12 PM
Diagnostics - null null
The error occurred on line 82.
Template - /dynamic/ftp_download.cfm


The stack trace says:

StackTrace - java.lang.NullPointerException
    at  coldfusion.runtime.NeoPageContext.findAttribute(NeoPageContext.java:575)
    at  coldfusion.tagext.net.FtpTag.doInterfaceSetup(FtpTag.java:632)
    at  coldfusion.tagext.net.FtpTag.doStartTag(FtpTag.java:667)
    at  coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:2661)
    at  
cfftp_download2ecfm102608902.runPage(/webdev/source/abc/en/dynamic/ftp_download 
.cfm:82)
    at  coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:196)
    at  coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:370)
    at  coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65)
    at  coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:279)
    at  
coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:48)
    at  coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40)
    at  coldfusion.filter.PathFilter.invoke(PathFilter.java:86)
    at  coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:70)
    at  coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:74)
    at  
coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFil 
ter.java:28)
    at  coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
    at  coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:46)
    at  coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
    at  coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
    at  
coldfusion.filter.RequestThrottleFilter.invoke(RequestThrottleFilter.java:126)
    at  coldfusion.CfmServlet.service(CfmServlet.java:175)
    at  coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
    at  jrun.servlet.FilterChain.doFilter(FilterChain.java:86)
    at  
coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilt 
er.java:42)
    at  coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)
    at  jrun.servlet.FilterChain.doFilter(FilterChain.java:94)
    at  jrun.servlet.FilterChain.service(FilterChain.java:101)
    at  jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)
    at  jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
    at  
jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:286)
    at  
jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)
    at  
jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203)
    at  
jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:320 
)
    at  
jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)
    at  
jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:266)
    at  jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

 

The cfftp tag used is (with actual remotefile path modified for security 
reasons)...

<cfftp action="existsfile"
    username="anonym...@abc.ftptoday.com"
    password="webmas...@abc.com"
    server="proxy.abc.com"
    passive="yes"
    remotefile="updates/v1_9/win/patchfile/xyzpatch.exe"
    timeout="90">

I'm on Sun version of CF8.
I find NO examples in any Adobe docs!
I find no discussion of this in LiveDocs or here on this forum.
Is there a better way to do this? 

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