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When program execution enters a {{try}} block that has a {{finally}} block, the {{finally}} block always executes, regardless of whether the {{try}} block (or any associated {{catch}} blocks) execute to completion. Statements that cause the {{finally}} block to terminate abruptly also cause the {{try}} block to terminate abruptly, and consequently mask any exception thrown from the {{try}} or {{catch}} blocks \[[JLS 205, Section 14.20.2, Execution of try-catch-finally|http://java.sun.com/docs/books/jls/third_edition/html/statements.html#14.20.2]\]. |
Never use return, break, continue or throw statements within a finally block.
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class TryFinally {
private static boolean doLogic() {
try {
throw new IllegalStateException();
} finally {
System.out.println("Caught Exception");
}
// Any return statements must go here; applicable only when exception is thrown conditionally
}
public static void main(String[] args) {
doLogic();
}
}
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In If this example had a return statement outside the finally block, the compiler reports would report an error because the return statement is would be unreachable due to the unconditional throwing of IllegalStateException. If the exception were thrown conditionally, the return statement could be used without compilation error.
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