Try-with-resources: Must I throw or catch the close() method's exceptions? [duplicate]

Answer 1

Quote from Java Language Specification ($14.20.3.2):

14.20.3.2 Extended try-with-resources

A try-with-resources statement with at least one catch clause and/or a finally clause is called an extended try-with-resources statement. The meaning of an extended try-with-resources statement:

    try ResourceSpecification
        Block
    Catches_opt
    Finally_opt

is given by the following translation to a basic try-with-resources statement (§14.20.3.1) nested inside a try-catch or try-finally or try-catch-finally statement:

    try {
        try ResourceSpecification
            Block
    }
    Catches_opt
    Finally_opt

The effect of the translation is to put the ResourceSpecification "inside" the try statement. This allows a catch clause of an extended try-with-resources statement to catch an exception due to the automatic initialization or closing of any resource.

So, basically, wrapper is already implemented