[
https://issues.apache.org/jira/browse/NET-301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12792758#action_12792758
]
Adam Scott commented on NET-301:
--------------------------------
IS THIS gonna be resolved?? what is the status?
> NullPointerException in method SocketClient.getLocalAddress()
> -------------------------------------------------------------
>
> Key: NET-301
> URL: https://issues.apache.org/jira/browse/NET-301
> Project: Commons Net
> Issue Type: Bug
> Affects Versions: 2.0
> Environment: Sun SPARC Ultra-5, Solaris 8
> java version "1.3.1_10"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_10-b03)
> Java HotSpot(TM) Client VM (build 1.3.1_10-b03, mixed mode)
> Reporter: Hector
> Original Estimate: 360h
> Remaining Estimate: 360h
>
> Hello,
> I'm new with Java (well, I have develop some programs, but not so
> hard....until now) and I'm trying to create an applet which can open an ftp
> connection from the client side to the server one, and download several files
> (I don't know if it's the best way to do what I want, but as far as I have
> read in internet, this is the most common and easy method used by many
> people).
> The problem is about the FTPClient class:
> I am able to connect, logon, set transfer mode, change the working directory,
> list the names of the directory...but when I try to perform a simple call to
> the "retrieveFile (remote, local)" method, I'm getting a
> NullPointerException (the call to that method is done after clicking on a
> download button):
> Exception in thread "AWT-EventQueue-2" java.lang.NullPointerException
> at
> org.apache.commons.net.SocketClient.getLocalAddress(SocketClient.java:441)
> at
> org.apache.commons.net.ftp.FTPClient._openDataConnection_(FTPClient.java:447)
> at
> org.apache.commons.net.ftp.FTPClient.retrieveFile(FTPClient.java:1257)
> at Applet1.jButton1_actionPerformed(Applet1.java:229)
> at Applet1.access$100(Applet1.java:21)
> at Applet1$3.actionPerformed(Applet1.java:95)
> at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
> at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
> at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
> at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
> at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown
> Source)
> at java.awt.Component.processMouseEvent(Unknown Source)
> at javax.swing.JComponent.processMouseEvent(Unknown Source)
> at java.awt.Component.processEvent(Unknown Source)
> at java.awt.Container.processEvent(Unknown Source)
> at java.awt.Component.dispatchEventImpl(Unknown Source)
> at java.awt.Container.dispatchEventImpl(Unknown Source)
> at java.awt.Component.dispatchEvent(Unknown Source)
> at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
> at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
> at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
> at java.awt.Container.dispatchEventImpl(Unknown Source)
> at java.awt.Component.dispatchEvent(Unknown Source)
> at java.awt.EventQueue.dispatchEvent(Unknown Source)
> at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
> at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
> at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
> at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> at java.awt.EventDispatchThread.run(Unknown Source)
> And the code is very simple:
> String reply;
> boolean success;
> String path = new String ("PATH_TO_REMOTE_FILE");
>
> try
> {
> fich_local = new File (jTextField1.getText () + "/Local_file.txt");
> local_file = new FileOutputStream (fich_local);
> String remote_file = new String (path + "/Remote_file.txt");
> ftp.connect("SERVER");
> reply = ftp.getReplyString();
> System.out.println(reply);
> ftp.login("USER","PASS");
> reply = ftp.getReplyString();
> System.out.println(reply);
> ftp.setFileType(FTP.ASCII_FILE_TYPE);
> reply = ftp.getReplyString();
> System.out.println(reply);
> ftp.changeWorkingDirectory(path);
> reply = ftp.getReplyString();
> System.out.println(reply);
> reply = ftp.printWorkingDirectory();
> System.out.println(reply);
> success = ftp.retrieveFile(remote_file, local_file);
> System.out.println("Status: " + success + " -- Remote File: " + remote_file +
> " -- Local File: " + fich_local.getAbsolutePath ());
> }
> catch (FileNotFoundException fnfe)
> {
> fnfe.printStackTrace ();
> }
> catch (IOException ioe)
> {
> ioe.printStackTrace ();
> }
> catch (Exception e)
> {
> e.printStackTrace ();
> }
> The remote server, directory and file whithin is included the
> "Remote_file.txt" exists, and the print line shows all this info if I catch
> the "NullPointerException" (also shows a "false" when calling to the success
> variable).
> I have googled a lot (and still googling), but found almost nothing useful
> and I would appreciate a lot any help (also if you need additional info,
> please let me know).
> Thanks in advance
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
