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

Do you check that the targetPath is a directory, or just that something exists with that name? (I know you say the user can copy it from the operating system, but maybe they're typing something else).

Does targetPath end with a File.separator already?

(It would help if you could log and tell us what the value of targetPath and filename are on a failing case)