What happens if I do not close BufferedReader in java? (Stream type reading in multi-threaded program)

Question

I have a multi-threaded program, in which I open a BufferedReader to read content from FIFO(named Pipe) file. As I want to implement stream type of solution to read text from FIFO file continuously, I have created a BufferedReader outside of thread task run, and want to keep that open forever as long as application is running.(No close() on bufferedReader) With the limited(let say 10) threads in ThreadPool will keep look for text in FIFO file and process that text for further. As I am using FIFO it will never reach END OF FILE.

By doing this, For a smaller input file it reads successfully, for a large input file it throws Stream closed IOexception(sporadically). It close automatically, I do not have close() statement. I have a code in place to acquire and close the semaphore lock at the place where i use br.readLine() to handle race condition issue

java.io.IOException: Stream closed
    at java.io.BufferedReader.ensureOpen(BufferedReader.java:122) ~[?:1.8.0_152]
    at java.io.BufferedReader.readLine(BufferedReader.java:317) ~[?:1.8.0_152]
    at java.io.BufferedReader.readLine(BufferedReader.java:389) ~[?:1.8.0_152]

Question:

1. For this solution I do not want to close the BufferedReader. What are the consequences?
2. Can I have a bufferedReader which never be closed? if so what steps I should consider in code.

Answer 1

BufferedReader is not a thread-safe class, so, we can get an uncountable number of various error on attempt to use the same object of that class from different threads.