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In multithreaded code, it is often common to use a single, master
thread that drives the actions the other threads take. This master
thread may send messages, often by placing them on a queue, that are
then processed by the other threads. But if the master thread throws an
exception, the remaining threads may continue to run, awaiting more
input to the queue, causing the program to freeze. In this installment
of Diagnosing Java Code, full-time Java developer and part-time
exterminator Eric Allen discusses detecting, fixing, and avoiding this
bug pattern.
Writing code with multiple threads can be quite advantageous to programmers. Multiple threads can make the programming (and the program) go much faster, and the code can use resources much more effectively. However, as with most things in life, there are drawbacks. Because multithreaded code is inherently non-deterministic, the potential for errors is much greater. What's more, the errors that do occur will be much harder to replicate and, therefore, tougher to pin down. more...
Writing code with multiple threads can be quite advantageous to programmers. Multiple threads can make the programming (and the program) go much faster, and the code can use resources much more effectively. However, as with most things in life, there are drawbacks. Because multithreaded code is inherently non-deterministic, the potential for errors is much greater. What's more, the errors that do occur will be much harder to replicate and, therefore, tougher to pin down. more...
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