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Handler tables are lists of tuples (try-start, try-end,
handler-start, exception-type). When an instruction throws, the first
handler in the list that covers the instruction and matches the type
is executed. For nested handlers, it is the job of the compiler to
add them to the handler table in the correct order.
When inlining a method, the handlers of the callee are prepended to
the list of handlers in the callsite method. This ensures that the
callee's handlers are tested first if an exception is thrown in the
inlined code.
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