08 Jun '13, 1am
The Pain of Broken Subprocess Management on JDK
Did you launch a process that writes a gigabyte of data to its output stream and then terminates? Well, friend, I sure hope you have a gigabyte of memory, because the JDK is going to read that sucker in and there's nothing you can do about it. And let's hope there's not more than 2GB of data, since this code basically just grows a byte, which in Java can only grow to 2GB. If there's more than 2GB of data on that stream, this logic errors out and the data is lost forever. Oh, and by the way...if you happened to be devlishly clever and managed to dig down to the real FileChannel attached to the child process, all the data from that stream has suddenly disappeared, and the channel itself is closed, even if you never got a chance to read from it. Thanks for the help, JDK.