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Posted to issues@commons.apache.org by "Michael Ernst (JIRA)" <ji...@apache.org> on 2017/09/07 18:40:00 UTC
[jira] [Commented] (IO-547) Nullpointer Exception in
FileSystemUtils.freeSpaceWindows
[ https://issues.apache.org/jira/browse/IO-547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16157413#comment-16157413 ]
Michael Ernst commented on IO-547:
----------------------------------
I agree with you that IllegalArgumentException is appropriate. The documentation of freeSpaceWindows says that the `path` parameter should be a (Windows) path, and if it's not then the arguments were illegal.
IOException would also be OK according to the Javadoc.
> Nullpointer Exception in FileSystemUtils.freeSpaceWindows
> ----------------------------------------------------------
>
> Key: IO-547
> URL: https://issues.apache.org/jira/browse/IO-547
> Project: Commons IO
> Issue Type: Bug
> Affects Versions: 2.5
> Environment: Windows OS
> Reporter: Nikhil Shinde
> Priority: Minor
> Labels: beginner
>
> In FileSystemutils.freeSpaceWindows(String path,long timeout) , path cannot be null. In this function for following assignment
> path = FilenameUtils.normalize(path,bool), path is assigned null value when
> (1) path argument is null.
> (2) path argument is illegal/invalid path as per windows system.
> {code:java}
> public class FileSystemutilTest {
> public static void main(String args[]){
> FileSystemUtils fsuobj = new FileSystemUtils();
> String path = ":\\Users\\nikhil\\Desktop\\tests"; /* Invalid path, causes Nullpointer Exception*/
> try {
> long space = fsuobj.freeSpace(path);
> } catch (IOException e) {
> e.printStackTrace();
> }
> }
> }
> {code}
> For above test case, as path is illegal for windows system, Nullpointer exception occurs. A check for validity of path as per windows file system, will resolve this bug.
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