ZipFileSystem is a file system provider that treats the contents of a zip or

JAR file as a java.nio.file.FileSystem.

The factory methods defined by the java.nio.file.FileSystems class can be

used to create a FileSystem, eg:

// use file type detection

Path jarfile = Paths.get("foo.jar");

FileSystem fs = FileSystems.newFileSystem(jarfile, null);

-or

// locate file system by the legacy JAR URL syntax

Map<String,?> env = Collections.emptyMap();

URI uri = URI.create("jar:file:/mydir/foo.jar");

FileSystem fs = FileSystems.newFileSystem(uri, env);

Once a FileSystem is created then classes in the java.nio.file package

can be used to access files in the zip/JAR file, eg:

Path mf = fs.getPath("/META-INF/MANIFEST.MF");

InputStream in = mf.newInputStream();

See Demo.java for more interesting usages.