There was an Old Developer

There was an old developer who deadlocked a thread.
I don’t know why he deadlocked the thread
Perhaps his app is dead.

There was an old developer who trylocked a thread.
That hung and spun and caused overhead.
He trylocked the thread to avoid the deadlock
I don’t know why he deadlocked the thread
Perhaps his app is dead.

There was an old developer who blocked a thread,
How absurd! To block a thread,
He trylocked the thread to avoid the block,
That hung and spun and caused overhead.
He trylocked the thread to avoid the deadlock
I don’t know why he deadlocked the thread.
Perhaps his app is dead.