Are resources closed before or after the finally?

Question

In Java 7's try-with-resources, I don't know which order the finally block and the auto-closing happens. What's the order?

BaseResource b = new BaseResource(); // not auto-closeable; must be stop'ed try(AdvancedResource a = new AdvancedResource(b)) {  } finally {     b.stop(); // will this happen before or after a.close()? } 

Answer 1

The resource gets closed before catch or finally blocks. See this tutorial.

A try-with-resources statement can have catch and finally blocks just like an ordinary try statement. In a try-with-resources statement, any catch or finally block is run after the resources declared have been closed.

To evaluate this is a sample code:

class ClosableDummy implements Closeable {     public void close() {         System.out.println("closing");     } }  public class ClosableDemo {     public static void main(String[] args) {         try (ClosableDummy closableDummy = new ClosableDummy()) {             System.out.println("try exit");             throw new Exception();         } catch (Exception ex) {             System.out.println("catch");         } finally {             System.out.println("finally");         }       } } 

Output:

try exit closing catch finally