java.nio.file

I have been trying to use the new globbing feature in JDK7, starting from the documentation and examples I can get globs such as "glob:*.dat" to work with the Files.walkFileTree(startingDir, finder); example but I have been unable to get the "**" syntax working. I would like to be able to create something like: matcher = FileSystems.getDefault().getPathMatcher("glob:" + "foo/**/bar/*.dat"); and would be grateful for a simple example. I am using Windows 7. UPDATE: @Oleg and @JBNizet make it clear that the "/" syntax is OS-independent. Note that the Javadocs suggest that OS-dependent syntax is

I'm unable to think of a realistic use case for the method java.io.File.exists() or its equivalent in Java 7 java.nio.file.Files.exists(Path) . It seems that isFile() or isDirectory() would be preferable in all cases (or canRead() , canWrite() , etc.). For example, in How do I check if a file exists in Java? , the accepted answer seems silly, as the second answer points out. Can anyone give an example where it's useful to know that a thing exists, without knowing whether the thing is a file or directory? EDIT: I understand what File.exists() does. My question is, when would that functionality

I wish to change the timestamp metadata on files in Java using the java.nio.Files class. I would like to change all 3 Linux/ext4 timestamps (last modified, access, and changed). I am able to change the first two timestamp fields as follows: Files.setLastModifiedTime(pathToMyFile, myCustomTime); Files.setAttribute(pathToMyFile, "basic:lastAccessTime", myCustomTime); However, I am unable modify the last Change: time on the file. Also, it is concerning that there is no change timestamp mentioned in the documentation . The closest available attribute is creationTime , which I tried without any

I was learning java nio package and I realized there are lots of methods already provided by File which nio.Files is providing again by using Path class. Like that few more I got. I am actually not getting what is the actual use of nio package. I am just very new to this package so may be my question is wrong but a little help can boost me to read further. The main difference between IO and NIO is that IO is blocking, while NIO is non-blocking. This article explains the differences in the packages and what blocking and non-blocking IO is. Java programming, I/O has until recently been carried

I want to watch a directory for file changes. And I used WatchService in java.nio. I can successfully listen for file created event. But I can't listen for file modify event. I checked official java tutorial , but still struggling. Here is the source code. import static java.nio.file.LinkOption.NOFOLLOW_LINKS; import static java.nio.file.StandardWatchEventKinds.ENTRY_CREATE; import static java.nio.file.StandardWatchEventKinds.OVERFLOW; import static java.nio.file.StandardWatchEventKinds.ENTRY_DELETE; import static java.nio.file.StandardWatchEventKinds.ENTRY_MODIFY; import java.io.File; import