Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.java.programmer > #33740
| From | Sebastian <news@seyweiler.dyndns.org> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Java Checked Exception is BAD! |
| Date | 2016-02-10 02:37 +0100 |
| Organization | albasani.net |
| Message-ID | <n9e499$4m0$1@news.albasani.net> (permalink) |
| References | (12 earlier) <37622de9-e99f-4a19-a8e0-8e9199fb91ea@googlegroups.com> <n9c42m$npk$1@news.albasani.net> <575f130e-2444-4eb8-bf11-91f13e1fb44b@googlegroups.com> <n9coos$9ht$1@dont-email.me> <fda62272-314a-4f2d-bd67-42f4f17c31ba@googlegroups.com> |
Am 09.02.2016 16:57, schrieb boxzou@gmail.com: > On Tuesday, 9 February 2016 08:18:14 UTC-5, Eric Sosman wrote: >> On 2/9/2016 7:58 AM, b...@gmail.com wrote: >>> On Tuesday, 9 February 2016 02:22:14 UTC-5, Sebastian wrote: >>>> Am 09.02.2016 03:46, schrieb b...@gmail.com: >>>>> On Monday, 8 February 2016 17:23:45 UTC-5, Eric Sosman wrote: >>>>>> >>>>>> And he wrote >>>>>> >>>>>> "[...] javadoc can't list all the exceptions either [...]" >>>>>> >>>>>> which gets the same BIG DOWNVOTE from me, too. A programmer who won't >>>>>> document his code is doing no one any favors. >>>>>> >>>>> that's quite normal. You can only document a few exceptions. for example, JPA EntityManager.persist(object) can throw all kinds of exceptions, there is no way you can document all (db connection failure, constraint violation, object mismtach etc etc, I think EclipseLink have hundreds of exception codes, they didn't document them at the method or class level, but as a separate web page: https://wiki.eclipse.org/EclipseLink_Exception_Error_Reference_%28ELUG%29). There is another reason: you can plug in new database. JPA has no way to document the future new db exceptions. Nor should it. >>>>> >>>>> Another example is SSH library to execute commands on remote OS. can you document all the errors thrown back by all the linux/unix commands? >>>>> >>>> Isn't that where wrapping for once is useful? Like >>>> InvocationTargetException? >>> >>> wrapping obscures the exception. Do you know how to handle an InvocationTargetException other than log it? >> >> Logging is not handling. >> >> Logging is a useful adjunct to handling, in that it exposes some >> information for post-event analysis: debugging, health monitoring, and >> all the rest. >> >> Your boss says "Perform this task," but you're unable. Logging is >> writing "I can't" on a sticky note your boss doesn't see. He will be >> unhappy if that's all you do, because you didn't "handle" his task: >> You "dropped" it. >> >> Question: What does the catch block do beyond emitting a log entry? >> Throw a new exception? Re-throw the original? Close a few streams? >> Mark a cache entry as "stale?" Abandon the current operation and move >> on to the next? Some combination of these and other actions? >> >> *That's* handling. >> > Your handling is not handling at all. Those are cleanup, which should be done in a finally block. > Closing streams would typically happen in a finally block. But all the rest of Eric's examples seem to me perfectly reasonable things one might do in a catch block. -- Sebastian
Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-04 07:18 -0800
Re: Java Checked Exception is BAD! Eric Douglas <e.d.programmer@gmail.com> - 2016-02-04 08:15 -0800
Re: Java Checked Exception is BAD! Silvio <silvio@internet.com> - 2016-02-04 17:57 +0100
Re: Java Checked Exception is BAD! Eric Douglas <e.d.programmer@gmail.com> - 2016-02-04 10:09 -0800
Re: Java Checked Exception is BAD! Silvio <silvio@internet.com> - 2016-02-04 21:01 +0100
Re: Java Checked Exception is BAD! Eric Douglas <e.d.programmer@gmail.com> - 2016-02-04 12:14 -0800
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-04 15:16 -0500
Re: Java Checked Exception is BAD! Silvio <silvio@internet.com> - 2016-02-04 21:37 +0100
Re: Java Checked Exception is BAD! Eric Douglas <e.d.programmer@gmail.com> - 2016-02-04 13:08 -0800
Re: Java Checked Exception is BAD! 4ndre4 <4ndre4@4ndre4.com.invalid> - 2016-02-04 21:16 +0000
Re: Java Checked Exception is BAD! Eric Douglas <e.d.programmer@gmail.com> - 2016-02-04 13:28 -0800
Re: Java Checked Exception is BAD! Martin Gregorie <martin@address-in-sig.invalid> - 2016-02-04 23:11 +0000
Re: Java Checked Exception is BAD! a.laforgia@gmail.com - 2016-02-05 04:21 -0800
Re: Java Checked Exception is BAD! Martin Gregorie <martin@address-in-sig.invalid> - 2016-02-05 13:07 +0000
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-04 18:04 -0500
Re: Java Checked Exception is BAD! Gene Wirchenko <genew@telus.net> - 2016-02-05 11:40 -0800
Re: Java Checked Exception is BAD! Sebastian <news@seyweiler.dyndns.org> - 2016-02-04 23:22 +0100
Re: Java Checked Exception is BAD! ruben <ceo@iran.gov> - 2016-02-15 11:45 +0000
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-04 11:57 -0800
Re: Java Checked Exception is BAD! Silvio <silvio@internet.com> - 2016-02-04 21:07 +0100
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-04 11:10 -0800
Re: Java Checked Exception is BAD! Eric Douglas <e.d.programmer@gmail.com> - 2016-02-04 11:28 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-04 11:33 -0800
Re: Java Checked Exception is BAD! 4ndre4 <4ndre4@4ndre4.com.invalid> - 2016-02-04 21:08 +0000
Re: Java Checked Exception is BAD! Lew <lewbloch@gmail.com> - 2016-02-04 16:09 -0800
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-04 12:00 -0500
Re: Java Checked Exception is BAD! Marcel Mueller <news.5.maazl@spamgourmet.org> - 2016-02-04 19:28 +0100
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-04 11:15 -0800
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-04 14:51 -0500
Re: Java Checked Exception is BAD! 4ndre4 <4ndre4@4ndre4.com.invalid> - 2016-02-04 21:07 +0000
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-04 14:36 -0800
Re: Java Checked Exception is BAD! a.laforgia@gmail.com - 2016-02-05 05:28 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-04 15:31 -0800
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-05 08:20 -0500
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-05 08:25 -0800
Re: Java Checked Exception is BAD! Eric Douglas <e.d.programmer@gmail.com> - 2016-02-05 08:47 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-05 16:09 -0800
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-06 08:38 -0500
Re: Java Checked Exception is BAD! Martin Gregorie <martin@address-in-sig.invalid> - 2016-02-06 14:13 +0000
Re: Java Checked Exception is BAD! Silvio <silvio@internet.com> - 2016-02-06 15:23 +0100
Re: Java Checked Exception is BAD! Sebastian <news@seyweiler.dyndns.org> - 2016-02-07 14:49 +0100
Re: Java Checked Exceptions Robert Klemme <shortcutter@googlemail.com> - 2016-02-07 21:55 +0100
Re: Java Checked Exceptions boxzou@gmail.com - 2016-02-07 14:39 -0800
Re: Java Checked Exceptions Robert Klemme <shortcutter@googlemail.com> - 2016-02-08 13:30 +0100
Re: Java Checked Exceptions boxzou@gmail.com - 2016-02-08 06:14 -0800
Re: Java Checked Exceptions Robert Klemme <shortcutter@googlemail.com> - 2016-02-08 20:55 +0100
Re: Java Checked Exceptions Lew <lewbloch@gmail.com> - 2016-02-08 16:06 -0800
Re: Java Checked Exceptions boxzou@gmail.com - 2016-02-08 18:38 -0800
Re: Java Checked Exceptions Martin Gregorie <martin@address-in-sig.invalid> - 2016-02-09 12:15 +0000
Re: Java Checked Exceptions boxzou@gmail.com - 2016-02-09 04:59 -0800
Re: Java Checked Exceptions Lew <lewbloch@gmail.com> - 2016-02-10 12:13 -0800
Re: Java Checked Exceptions boxzou@gmail.com - 2016-02-10 19:00 -0800
Re: Java Checked Exceptions Martin Gregorie <martin@address-in-sig.invalid> - 2016-02-11 12:18 +0000
Re: Java Checked Exceptions leif.roar@dimnakorr.com - 2016-02-11 04:43 -0600
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-07 14:34 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-07 14:11 -0800
Re: Java Checked Exception is BAD! Martin Gregorie <martin@address-in-sig.invalid> - 2016-02-07 23:19 +0000
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-07 15:42 -0800
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-06 09:43 -0500
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-07 14:14 -0800
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-08 09:22 -0500
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-08 11:01 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-08 11:08 -0800
Re: Java Checked Exception is BAD! Sebastian <news@seyweiler.dyndns.org> - 2016-02-08 22:02 +0100
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-07 14:09 -0800
Re: Java Checked Exception is BAD! Martin Gregorie <martin@address-in-sig.invalid> - 2016-02-07 23:29 +0000
Re: Java Checked Exception is BAD! Sebastian <news@seyweiler.dyndns.org> - 2016-02-08 21:49 +0100
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-08 17:23 -0500
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-08 18:46 -0800
Re: Java Checked Exception is BAD! Sebastian <news@seyweiler.dyndns.org> - 2016-02-09 08:21 +0100
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-09 04:58 -0800
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-09 08:17 -0500
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-09 07:57 -0800
Re: Java Checked Exception is BAD! Sebastian <news@seyweiler.dyndns.org> - 2016-02-10 02:37 +0100
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-10 18:58 -0800
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-11 08:13 -0500
Re: Java Checked Exception is BAD! Lew <lewbloch@gmail.com> - 2016-02-11 14:02 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-11 16:41 -0800
Re: Java Checked Exception is BAD! Sebastian <news@seyweiler.dyndns.org> - 2016-02-10 02:31 +0100
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-10 18:47 -0800
Re: Java Checked Exception is BAD! Martin Gregorie <martin@address-in-sig.invalid> - 2016-02-09 12:26 +0000
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-09 04:57 -0800
Re: Java Checked Exception is BAD! Martin Gregorie <martin@address-in-sig.invalid> - 2016-02-09 18:27 +0000
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-07 20:19 -0800
Re: Java Checked Exception is BAD! Robert Klemme <shortcutter@googlemail.com> - 2016-02-06 16:01 +0100
Re: Java Checked Exception is BAD! 4ndre4 <4ndre4@4ndre4.com.invalid> - 2016-02-06 15:10 +0000
Re: Java Checked Exception is BAD! Kevin McMurtrie <mcmurtrie@pixelmemory.us> - 2016-02-06 17:59 -0800
Re: Java Checked Exception is BAD! 4ndre4 <4ndre4@4ndre4.com.invalid> - 2016-02-07 09:34 +0000
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-07 14:23 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-07 20:52 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-07 21:13 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-07 14:19 -0800
Re: Java Checked Exception is BAD! Martin Gregorie <martin@address-in-sig.invalid> - 2016-02-07 23:42 +0000
Re: Java Checked Exception is BAD! Robert Klemme <shortcutter@googlemail.com> - 2016-02-08 13:17 +0100
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-08 04:39 -0800
Re: Java Checked Exception is BAD! Lew <lewbloch@gmail.com> - 2016-02-08 16:05 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-08 18:35 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-08 19:10 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-08 19:12 -0800
Re: Java Checked Exception is BAD! Silvio <silvio@internet.com> - 2016-02-11 16:37 +0100
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-11 12:00 -0500
Re: Java Checked Exception is BAD! Silvio <silvio@internet.com> - 2016-02-11 19:01 +0100
Re: Java Checked Exception is BAD! Sebastian <news@seyweiler.dyndns.org> - 2016-02-11 20:32 +0100
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-11 15:20 -0500
Re: Java Checked Exception is BAD! Silvio <silvio@internet.com> - 2016-02-11 23:53 +0100
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-11 18:21 -0500
Re: Java Checked Exception is BAD! Lew <lewbloch@gmail.com> - 2016-02-11 15:45 -0800
Re: Java Checked Exception is BAD! Silvio <silvio@internet.com> - 2016-02-12 01:19 +0100
Re: Java Checked Exception is BAD! Lew <lewbloch@gmail.com> - 2016-02-11 19:18 -0800
Re: Java Checked Exception is BAD! Sebastian <news@seyweiler.dyndns.org> - 2016-02-12 08:31 +0100
Re: Java Checked Exception is BAD! Silvio <silvio@internet.com> - 2016-02-12 15:33 +0100
Re: Java Checked Exception is BAD! Silvio <silvio@internet.com> - 2016-02-12 15:41 +0100
Re: Java Checked Exception is BAD! Silvio <silvio@internet.com> - 2016-02-12 15:42 +0100
Re: Java Checked Exception is BAD! Martin Gregorie <martin@address-in-sig.invalid> - 2016-02-08 21:19 +0000
Re: Java Checked Exception is BAD! Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-05 13:00 -0500
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-04 15:51 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-04 15:59 -0800
Re: Java Checked Exception is BAD! boxzou@gmail.com - 2016-02-04 16:03 -0800
Re: Java Checked Exception is BAD! Eric Douglas <e.d.programmer@gmail.com> - 2016-02-05 05:33 -0800
Re: Java Checked Exception is BAD! Kevin McMurtrie <mcmurtrie@pixelmemory.us> - 2016-02-04 21:05 -0800
Re: Java Checked Exception is BAD! ynseo <yeori.seo@gmail.com> - 2016-02-08 01:05 -0800
Re: Java Checked Exception is BAD! Sebastian <sebastian.millies@softwareag.com> - 2016-02-19 03:43 -0800
csiph-web