What would be a

runCatching

-equivalent of the

try {} finally {}

code in Java? Is it what the

recover{}

function does?

For

Closeable

resources there is a

use

function. Otherwise it's ad-hoc, AFAIK.

The Kotlin equivalent of

try {} finally {}

in Java is

try {} finally {}

: •

runCatching

wraps the result in, well, a

Result

(which

try … finally

doesn't do, especially not in Java, where it's not even an expression). •

recover

is more like a

catch (Throwable t) { }

in Java, giving you the opportunity to do something with the exception and still give a

Result

back

@Joffrey how to use this

use

fun?

Example:

FileWriter("test.txt")
  .use { it.write("something") }

Even if the

write

fails, the

FileWriter

will be closed. Works with every

Closable

resource.

Thanks, Henning. In my project the code in

finally

block is not used on

Closable

. So, probably a mis-use of the

finally

in my cause

Not necessarily, it just means

use

is not applicable to your problem.