L created VFS-558:
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Summary: java.lang.UnsupportedOperationException in FtpFileObject
Key: VFS-558
URL: https://issues.apache.org/jira/browse/VFS-558
Project: Commons VFS
Issue Type: Bug
Affects Versions: 2.0
Reporter: L
I am getting the following exception in my code:
java.lang.UnsupportedOperationException
at java.util.Collections$UnmodifiableMap.remove(Collections.java:1345)
at
org.apache.commons.vfs2.provider.ftp.FtpFileObject.onChildrenChanged(FtpFileObject.java:271)
at
org.apache.commons.vfs2.provider.AbstractFileObject.childrenChanged(AbstractFileObject.java:240)
at
org.apache.commons.vfs2.provider.AbstractFileObject.notifyParent(AbstractFileObject.java:1931)
at
org.apache.commons.vfs2.provider.AbstractFileObject.handleCreate(AbstractFileObject.java:1577)
at
org.apache.commons.vfs2.provider.AbstractFileObject.moveTo(AbstractFileObject.java:1866)
at
org.apache.commons.vfs2.impl.DecoratedFileObject.moveTo(DecoratedFileObject.java:241)
at
org.apache.commons.vfs2.cache.OnCallRefreshFileObject.moveTo(OnCallRefreshFileObject.java:184)
...
I guess it is caused by the fact that children field is set to
EMPTY_FTP_FILE_MAP at the moment onChildrenChanged() is invoked.
I also do not like line 1866 in AbstractFileObject.java. To me it looks like it
might be the real cause of the problem:
FileObjectUtils.getAbstractFileObject(destFile).handleCreate(getType());
Must it not be destFile.getType()?
But even if I am right about AbstractFileObject.java:1866,
FtpFileObject.onChildrenChanged() must be corrected as well.
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