Getting “java.nio.file.AccessDeniedException” when trying to write to a folder

Question

For some reason I keep getting java.nio.file.AccessDeniedException every time I try to write to a folder on my computer using a java webapp on Tomcat. This fold

Answer 1

I was getting the same error when trying to copy a file. Closing a channel associated with the target file solved the problem.

Path destFile = Paths.get("dest file");
SeekableByteChannel destFileChannel = Files.newByteChannel(destFile);
//...
destFileChannel.close();  //removing this will throw java.nio.file.AccessDeniedException:
Files.copy(Paths.get("source file"), destFile);