Commons-IO 2.4 發布

Commons-io 2.4 發布了，Commons項目中用來處理IO的一些工具類包，

//直接將IO流轉成字符串
 InputStream in = new URL( "http://jakarta.apache.org" ).openStream();
 try {
   System.out.println( IOUtils.toString( in ) );
 } finally {
   IOUtils.closeQuietly(in);
 }
//讀取文本文件的所有行
 File file = new File("/commons/io/project.properties");
 List lines = FileUtils.readLines(file, "UTF-8");
//路徑處理
 String filename = "C:/commons/io/../lang/project.xml";
 String normalized = FilenameUtils.normalize(filename);
 // result is "C:/commons/lang/project.xml"
//獲取目錄空間
 long freeSpace = FileSystemUtils.freeSpace("C:/"); 
//打印文件的所有行
 LineIterator it = FileUtils.lineIterator(file, "UTF-8");
 try {
   while (it.hasNext()) {
     String line = it.nextLine();
     /// do something with line
   }
 } finally {
   LineIterator.closeQuietly(iterator);
 }

New features:
o IO-269:  Tailer locks file from deletion/rename on Windows. Thanks to sebb.
o IO-333:  Export OSGi packages at version 1.x in addition to 2.x. Thanks to fmeschbe.
o IO-320:  Add XmlStreamReader support for UTF-32. Thanks to ggregory.
o IO-331:  BOMInputStream wrongly detects UTF-32LE_BOM files as UTF-16LE_BOM files in method getBOM(). Thanks to ggregory.
o IO-327:  Add byteCountToDisplaySize(BigInteger). Thanks to ggregory.
o IO-326:  Add new FileUtils.sizeOf[Directory] APIs to return BigInteger. Thanks to ggregory, kinow.
o IO-325:  Add IOUtils.toByteArray methods to work with URL and URI. Thanks to raviprak.
o IO-324:  Add missing Charset sister APIs to method that take a String charset name. Thanks to raviprak.

Fixed Bugs:
o IO-336:  Yottabyte (YB) incorrectly defined in FileUtils. Thanks to rleavelle.
o IO-279:  Tailer erroneously considers file as new. Thanks to Sergio Bossa, Chris Baron.
o IO-335:  Tailer#readLines - incorrect CR handling.
o IO-334:  FileUtils.toURLs throws NPE for null parameter; document the behavior.
o IO-332:  Improve tailer's reading performance. Thanks to liangly.
o IO-279:  Improve Tailer performance with buffered reads (see IO-332).
o IO-329:  FileUtils.writeLines uses unbuffered IO. Thanks to tivv.
o IO-319:  FileUtils.sizeOfDirectory follows symbolic links. Thanks to raviprak.