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Read text file from inside Java eclipse executable jar

I am trying to read a text file from inside of exectutable jar. I can read it from eclipse, but can not from executable jar.I googled, and found out I have to use getClass.getResource. But all google examples are not for Buffered Reader. My current codes are the following.

BufferedReader in = null;
try
{
File file = new File ("tfl.txt");
in = new BufferedReader(new InputStreamReader( new    
FileInputStream(file),"unicode"));
...
}

Try this

InputStream localInputStream = ClassLoader.getSystemClassLoader().getResourceAsStream("resource_name");
BufferedReader br = new BufferedReader(new InputStreamReader(localInputStream));

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