Extractor of non-fatal Throwables. Will not match fatal errors likeVirtualMachineError (for example,OutOfMemoryError andStackOverflowError, subclasses ofVirtualMachineError),ThreadDeath,LinkageError,InterruptedException,ControlThrowable.

Note thatscala.util.control.ControlThrowable, an internal Throwable, is not matched byNonFatal (and would therefore be thrown).

For example, all harmless Throwables can be caught by:

try {  // dangerous stuff} catch {  case NonFatal(e) => log.error(e, "Something not that bad.") // or  case e if NonFatal(e) => log.error(e, "Something not that bad.")}