Usman Ashraf Bajwah created VFS-842:
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Summary: CopyFrom method doesn't update File Size after replacing
file
Key: VFS-842
URL: https://issues.apache.org/jira/browse/VFS-842
Project: Commons VFS
Issue Type: Bug
Affects Versions: 2.9.0
Reporter: Usman Ashraf Bajwah
Consider the scenario where we have two folders source and destination both
have file with same name use copyFrom method file will be copied (replaced) in
the destination folder alright but size of the file WILL NOT BE UPDATED IF THE
SIZE OF DESTINATION FILE BEFORE COPY WAS GREATER THAN THE SIZE OF SOURCE FILE.
In order to produce this issue. Use following code. and also take 2 image files
in two different folders. Also make sure the destination folder contains image
with higher size.
{color:#7f0055}public{color}{color:#000000}
{color}{color:#7f0055}static{color}{color:#000000}
{color}{color:#7f0055}void{color}{color:#000000} main(String[]
{color}{color:#6a3e3e}args{color}{color:#000000})
{color}{color:#7f0055}throws{color}{color:#000000} FileSystemException,
UnsupportedEncodingException {{color}
{color:#7f0055}try{color}{color:#000000} {{color}
{color:#000000} String {color}{color:#6a3e3e}source{color}{color:#000000} =
{color}{color:#2a00ff}"C:\\SourceFolder\\Usman.jpg"{color}{color:#000000};{color}
{color:#000000} String {color}{color:#6a3e3e}destination{color}{color:#000000}
=
{color}{color:#2a00ff}"C:\\TargetFolder\\Usman.jpg"{color}{color:#000000};{color}
{color:#000000} FileSystemManager
{color}{color:#6a3e3e}fsManager{color}{color:#000000} =
VFS.{color}{color:#000000}getManager{color}{color:#000000}();{color}
{color:#000000} FileObject
{color}{color:#6a3e3e}fileToCopy{color}{color:#000000} =
{color}{color:#6a3e3e}fsManager{color}{color:#000000}.resolveFile({color}{color:#6a3e3e}source{color}{color:#000000});{color}
{color:#000000} FileObject
{color}{color:#6a3e3e}destinationFilePath{color}{color:#000000} =
{color}{color:#6a3e3e}fsManager{color}{color:#000000}.resolveFile({color}{color:#6a3e3e}destination{color}{color:#000000});{color}
{color:#000000}
System.{color}{color:#0000c0}out{color}{color:#000000}.println({color}{color:#2a00ff}"Source
File Size:
"{color}{color:#000000}+{color}{color:#6a3e3e}fileToCopy{color}{color:#000000}.getContent().getSize());{color}
{color:#000000}
System.{color}{color:#0000c0}out{color}{color:#000000}.println({color}{color:#2a00ff}"Destination
File Size Before Copy:
"{color}{color:#000000}+{color}{color:#6a3e3e}destinationFilePath{color}{color:#000000}.getContent().getSize());{color}
{color:#6a3e3e}destinationFilePath{color}{color:#000000}.copyFrom({color}{color:#6a3e3e}fileToCopy{color}{color:#000000},
Selectors.{color}{color:#0000c0}SELECT_ALL{color}{color:#000000});{color}
{color:#000000}
System.{color}{color:#0000c0}out{color}{color:#000000}.println({color}{color:#2a00ff}"Destination
File Size After Copy:
"{color}{color:#000000}+{color}{color:#6a3e3e}destinationFilePath{color}{color:#000000}.getContent().getSize());{color}
{color:#000000} }{color}{color:#7f0055}catch{color}{color:#000000}(Exception
{color}{color:#6a3e3e}ex{color}{color:#000000}) {{color}
{color:#6a3e3e}ex{color}{color:#000000}.printStackTrace();{color}
{color:#000000} } {color}
{color:#000000} }{color}
{color:#000000}The output it shows : {color}
{color:#000000}Source File Size: 17259{color}
{color:#000000}Destination File Size Before Copy: 110696{color}
{color:#000000}Destination File Size After Copy: 110696{color}
{color:#000000}I have verified the file is successfully copied but on File
explorer the old size is showing. It seems there is some issue while we write
the content of the file. Please let me know if you need any information{color}
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