The javadoc says: Wherever possible, the methods in this class do not flush or close the stream. This is to avoid making non-portable assumptions about the streams’ origin and further use. Thus the caller is still responsible for closing streams after use.
The code should look like this regarding to the javadoc of closeQuietly(): BufferedWriter bw = null; try { bw = new BufferedWriter(new FileWriter(“test.txt”)); bw.write(“test”); bw.flush(); // you can omit this if you don’t care about errors while flushing bw.close(); // you can omit this if you don’t care about errors while closing } catch (IOException … Read more
import org.apache.commons.io.FileUtils; FileUtils.cleanDirectory(directory); There is this method available in the same file. This will also recursively deletes all sub-folders and files under them. Docs: org.apache.commons.io.FileUtils.cleanDirectory