嗨，我使用以下代码

public class Readfiles {

    FileInputStream fr;

    public void readAll(){

    try {
        fr = new FileInputStream(new File("books/Artificial intelligence.txt"));

    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        System.out.println("File Not Found");
        e.printStackTrace();
    }
     CharsetDecoder decoder = Charset.forName("UTF-8").newDecoder();
     decoder.onMalformedInput(CodingErrorAction.IGNORE);

    InputStreamReader reader = new InputStreamReader(fr, decoder);
    BufferedReader br = new BufferedReader(reader);

        try {
            int i = 0;

             for(String newLine; (newLine = br.readLine()) != null; )
                {

                newLine = br.readLine();

                i++;

                System.out.println(newLine);    
            }
            br.close();
            System.out.println(i);

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

}
要读取这个txt文件，它大约有420.000行长：artificial intelligence.txt
但是我上面的代码没有正确读取它中间缺少大约一半的行，并且似乎从任何地方开始（每个都是随机开始的）下面是sysout的可能结果之一：
仅第一行：

# @Margaret H. Szymanski,Paul M. Aoki,Rebecca E. Grinter,Amy Hurst,James D. Thornton,Allison Woodruff

# cComputer Supported Cooperative Work

# %5488

# %87739

# %257074

# %818174

# !

# *Unpacking Tasks: The Fusion of New Technology with Instructional Work.

# t2008

# index831790

# %174882

# !

所以问题是为什么？
i的打印输出总是209647。