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Considering this code, can I be absolutely sure that the finally block always executes, no matter what something() is?
try { something(); return success; } catch (Exception e) { return failure; } finally { System.out.println("I don't know if this will get printed out"); } 
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A finally block always executes, regardless of whether an exception is thrown. The following code example uses a try / catch block to catch an ArgumentOutOfRangeException.
A finally block will not execute due to other conditions like when JVM runs out of memory when our java process is killed forcefully from task manager or console when our machine shuts down due to power failure and deadlock condition in our try block.
Yes, the finally block will be executed even after a return statement in a method. The finally block will always execute even an exception occurred or not in Java.
The finally block follows a try block or a catch block. A finally block of code always executes, irrespective of occurrence of an Exception. You cannot skip the execution of the final block. Still if you want to do it forcefully when an exception occurred, the only way is to call the System.
Yes, finally will be called after the execution of the try or catch code blocks.
The only times finally won't be called are:
System.exit() Runtime.getRuntime().halt(exitStatus) try or catch blockkill -9 <pid> on UNIXfinally block is going to be executed by a daemon thread and all other non-daemon threads exit before finally is called
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