New to Java

My java program needs to read data from a FIFO file and then block when the data ends and wait for more data.

I can achieve the desired effect with something like

while(true) {
    while(myReader.ready()) {
        ... read data here ....
    }
}

... but this eats the cpu. Is there a way to truly do a blocking read on the file while waiting for more data?

Thanks!