如果大小超过~10MB，则无法读取整个文本文件

I am trying to read a text file line by line with Java and searching for special lines with regex. The problem is my file is around 28MB. There are 198546 lines in it, but after around 110000 lines, my script doesn't search and finish the script without any exception. I think this is relates to the I am trying to read a text file line by line wi