What are possible reasons for java.io.IOException: “The filename, directory name, or volume label syntax is incorrect”

Question

I am trying to copy a file using the following code:

File targetFile = new File(targetPath + File.separator + filename);
...
targetFile.createNewFile();
file         


        

Answer 1

This can occur when filename has timestamp with colons, eg. myfile_HH:mm:ss.csv Removing colons fixed the issue.