What happens if exceptions occur in the catch and finally blocks during the execution of the try statement?

When exceptions occur in catch and finally blocks during the execution of a try statement, the behavior depends on the order of exception occurrence:

• If an exception occurs in the try block, and another exception occurs in the catch block while handling the first, the new exception from catch replaces the original.
• If an exception occurs in the finally block, it replaces any previously thrown exception from try or catch, and this exception is propagated.

This means that the exception from finally has priority and can 'swallow' previous exceptions, making debugging more complex. Therefore, it is recommended to avoid throwing exceptions in finally or to handle them carefully.

Example:

try {
    throw new Exception("Exception from try");
} catch (Exception e) {
    throw new Exception("Exception from catch");
} finally {
    throw new Exception("Exception from finally");
}

In this case, the exception from finally will be propagated.