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https://issues.apache.org/jira/browse/NET-61?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12476936
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Shashi Anand B commented on NET-61:
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Hi, the fixed version seems to be on JDK 1.5. Is the fix available for JDK 1.4?
When I use the fixed version with JDK 1.4, I get the following error:
org/apache/commons/net/ftp/FTPConnectionClosedException (Unsupported
major.minor version 49.0) java.lang.UnsupportedClassVersionError
java.lang.ClassLoader:defineClass0:-2 java.lang.ClassLoader:defineClass:539
java.security.SecureClassLoader:defineClass:123
java.net.URLClassLoader:defineClass:251
java.net.URLClassLoader:access$100:55
java.net.URLClassLoader$1:run:194
java.security.AccessController:doPrivileged:-2
java.net.URLClassLoader:findClass:187
java.lang.ClassLoader:loadClass:289
sun.misc.Launcher$AppClassLoader:loadClass:274
java.lang.ClassLoader:loadClass:235
java.lang.ClassLoader:loadClassInternal:302
> [net] FTPClient.listFiles() hangs on Red Hat Linux
> --------------------------------------------------
>
> Key: NET-61
> URL: https://issues.apache.org/jira/browse/NET-61
> Project: Commons Net
> Issue Type: Bug
> Affects Versions: 1.4
> Environment: Operating System: Linux
> Platform: PC
> Reporter: George Van Treeck
> Priority: Blocker
> Fix For: 2.0
>
>
> A Java app that uses FTPClient to download a file from a website to Windows
> XP
> works properly. But, when the same app runs on Linux to download the same
> file
> from the same website, it hangs at listFiles().
> Using Java 1.5.0_03 on both the Windows XP and Linux. The version of Linux
> used is Fedor Red Hat Linux Core 3 with all the latest updates. The following
> segment of code from the program demonstrates the problem:
> FTPClient ftp = new FTPClient();
> ftp.connect(host);
> reply = ftp.getReplyCode();
> if (!FTPReply.isPositiveCompletion(reply)) {
> final String ftpStatus = ftp.getReplyString();
> ftp.disconnect();
> throw new IOException(
> "FTP server refused connection. Status: " +
> ftpStatus);
> }
> ftp.login(user, password);
> reply = ftp.getReplyCode();
> if (!FTPReply.isPositiveCompletion(reply)) {
> final String ftpStatus = ftp.getReplyString();
> ftp.disconnect();
> throw new IOException(
> "FTP server refused username/password. Status: " +
> ftpStatus);
> }
> String[] list = ftp.listNames();
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