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  1. Commons Net
  2. NET-193

FTP throw NullPointerException when enountering 02-29-2008 (leap year bug)

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.4
    • Fix Version/s: 1.5, 2.0
    • Component/s: None
    • Labels:
      None
    • Environment:

      Ant 1.7
      commons-net-1.4.1
      java 1.6.0_01
      Windows 2003 (build machine)
      Windows 2003 FTP server

      Description

      ant FTP task blowing up when parsing directories containing ANY items dated (created/modified) February 29 2008.

      There may be a workaround using defaultDateFormatConfig or recentDateFormatConfig - but I didn't find it (actually by messing with some of the ftp attributes my build finally stopped throwing NullPointerExceptions, but refused to list or get any files!! Always came back with 0 files found)

      Not sure the date format used by Windows FTP server - One thing I am sure of: tasks that once worked stopped working on Friday - it took all weekend and most of today to figure it out. By updating files and folders, magically ftp task begins working agains and I slowly begin regain my sanity

      Here's the exception:
      D:\builds\build.xml:23: java.lang.NullPointerException
      at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:115)
      at org.apache.tools.ant.Task.perform(Task.java:348)
      at org.apache.tools.ant.Target.execute(Target.java:357)
      at org.apache.tools.ant.Target.performTasks(Target.java:385)
      at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
      at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
      at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
      at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
      at org.apache.tools.ant.Main.runBuild(Main.java:698)
      at org.apache.tools.ant.Main.startAnt(Main.java:199)
      at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
      at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
      Caused by: java.lang.NullPointerException
      at org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.scandir(FTP.java:374)
      at org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.accountForIncludedDir(FTP.java:459)
      at org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.scandir(FTP.java:383)
      at org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.checkIncludePatterns(FTP.java:270)
      at org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.scan(FTP.java:233)
      at org.apache.tools.ant.taskdefs.optional.net.FTP.transferFiles(FTP.java:1570)
      at org.apache.tools.ant.taskdefs.optional.net.FTP.transferFiles(FTP.java:1683)
      at org.apache.tools.ant.taskdefs.optional.net.FTP.execute(FTP.java:2373)
      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:597)
      at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
      ... 11 more
      — Nested Exception —
      java.lang.NullPointerException
      at org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.scandir(FTP.java:374)
      at org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.accountForIncludedDir(FTP.java:459)
      at org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.scandir(FTP.java:383)
      at org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.checkIncludePatterns(FTP.java:270)
      at org.apache.tools.ant.taskdefs.optional.net.FTP$FTPDirectoryScanner.scan(FTP.java:233)
      at org.apache.tools.ant.taskdefs.optional.net.FTP.transferFiles(FTP.java:1570)
      at org.apache.tools.ant.taskdefs.optional.net.FTP.transferFiles(FTP.java:1683)
      at org.apache.tools.ant.taskdefs.optional.net.FTP.execute(FTP.java:2373)
      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
      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:105)
      at org.apache.tools.ant.Task.perform(Task.java:348)
      at org.apache.tools.ant.Target.execute(Target.java:357)
      at org.apache.tools.ant.Target.performTasks(Target.java:385)
      at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
      at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
      at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
      at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
      at org.apache.tools.ant.Main.runBuild(Main.java:698)
      at org.apache.tools.ant.Main.startAnt(Main.java:199)
      at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
      at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)

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              • Assignee:
                Unassigned
                Reporter:
                jburtram j burtram
              • Votes:
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                Dates

                • Created:
                  Updated:
                  Resolved: