BufferedReader br1 = null;
try (BufferedReader br2 = new BufferedReader(new FileReader("src/sample.txt"))) {
br2.lines().forEach(line -> System.out.println(line));
br1 = br2; // Resource leak: 'br1' is never closedJava(536871799)
}
// try블록 종료 시 Stream은 이미 닫혀있기 때문에 'java.io.IOException: Stream closed' 발생.
System.out.println(br1.ready());
