[COMPRESS-366] TarArchiveEntry: getDirectoryEntries not working

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.12
• Fix Version/s: 1.13
• Component/s: Archivers

Environment

Eclipse 4.6, Linux 64 Bit

• Assignee: Unassigned
• Reporter: Casi Colada
• Created: 04/Oct/16 15:52
• Updated: 07/Oct/16 15:56
• Resolved: 07/Oct/16 15:56

Description

TarArchiveEntry.getDirectoryEntries() always returns an empty array. This is because entry.getFile() returns null for a directory entry.

Let folder.tar be a Tar Archive which contains a folder, and that folder contains a file. Consider the following snippet:

---

import java.io.FileInputStream;
import org.apache.commons.compress.archivers.tar.*;

public class GetDirectoryEntriesBug {
public static void main(String[] args) throws Exception {
TarArchiveInputStream tais = new TarArchiveInputStream(new FileInputStream("folder.tar"));
for(TarArchiveEntry entry; (entry = tais.getNextTarEntry()) != null; )

{ System.out.println("Name: " + entry.getName() + ", isDirectory: " + entry.isDirectory() + ", getDirectoryEntries().length: " + entry.getDirectoryEntries().length); }

tais.close();
}
}

---

Output:
Name: folder/file, isDirectory: false, getDirectoryEntries().length: 0
Name: folder/, isDirectory: true, getDirectoryEntries().length: 0

I expected that, for "folder/", getDirectoryEntries() will not return an empty array.