// use of TPath to get a TrueZip style Path.

import de.schlichtherle.truezip.nio.file.TPath;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
...
// Path path =  Paths.get( "archive.zip/entry" ); // wouldn't work
Path path = new TPath( "archive.zip/entry" ); // use this
InputStream in = Files.newInputStream( path );