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Posted to issues@commons.apache.org by "Jason (JIRA)" <ji...@apache.org> on 2012/09/18 01:59:07 UTC
[jira] [Updated] (VFS-437) Program crashes when StackOverFlow
Exception happens from pulling a softlinked directory that link to the
directory that has the same name one level above
[ https://issues.apache.org/jira/browse/VFS-437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jason updated VFS-437:
----------------------
Description:
With the setting below, StackOverFlow exceptions occur and server crashes
set the builder.setUserDirlsRoot (opt, true)
Attept to pull with:
ftp://root:password@ip:/Vol1
Vol directory has the following info
lrwxrwxrwx 1 root root 5 Oct 5 2007 Vol1 -> /Vol1
When it tries to look for the parent of the Vol1, it goes back to the same Vol1, which causes a infinite loop that eventually creates stackoverflow exception.
Exception is shown below
java.lang.StackOverflowError
at org.apache.commons.net.ftp.FTPFile.isDirectory(FTPFile.java:116)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:334)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
was:
With the setting below, StackOverFlow exceptions occur and server crashes
Attept to pull with:
ftp://root:password@ip:/Vol1
Vol directory has the following info
lrwxrwxrwx 1 root root 5 Oct 5 2007 Vol1 -> /Vol1
set the builder.setUserDirlsRoot (opt, true)
When it tries to look for the parent of the Vol1, it goes back to the same Vol1, which causes a infinite loop that eventually creates stackoverflow exception.
Exception is shown below
java.lang.StackOverflowError
at org.apache.commons.net.ftp.FTPFile.isDirectory(FTPFile.java:116)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:334)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
> Program crashes when StackOverFlow Exception happens from pulling a softlinked directory that link to the directory that has the same name one level above
> -----------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: VFS-437
> URL: https://issues.apache.org/jira/browse/VFS-437
> Project: Commons VFS
> Issue Type: Bug
> Affects Versions: 2.0
> Environment: java version "1.7.0_02"
> Java(TM) SE Runtime Environment (build 1.7.0_02-b13)
> Java HotSpot(TM) 64-Bit Server VM (build 22.0-b10, mixed mode)
> Linux version 2.6.18-238.el5 (mockbuild@builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Thu Jan 13 15:51:15 EST 2011
> Reporter: Jason
> Priority: Blocker
> Fix For: 2.1
>
>
> With the setting below, StackOverFlow exceptions occur and server crashes
> set the builder.setUserDirlsRoot (opt, true)
> Attept to pull with:
> ftp://root:password@ip:/Vol1
> Vol directory has the following info
> lrwxrwxrwx 1 root root 5 Oct 5 2007 Vol1 -> /Vol1
> When it tries to look for the parent of the Vol1, it goes back to the same Vol1, which causes a infinite loop that eventually creates stackoverflow exception.
> Exception is shown below
> java.lang.StackOverflowError
> at org.apache.commons.net.ftp.FTPFile.isDirectory(FTPFile.java:116)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:334)
> at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
> at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
> at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
> at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
> at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
> at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
> at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
> at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
> at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
> at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
> at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
> at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:496)
> at org.apache.commons.vfs2.provider.ftp.FtpFileObject.doGetType(FtpFileObject.java:344)
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