Path: csiph.com!aioe.org!.POSTED!not-for-mail
From: =?UTF-8?Q?Arne_Vajh=c3=b8j?= <arne@vajhoej.dk>
Newsgroups: comp.lang.java.programmer
Subject: Re: Is it necessary the source file should be at the same location with the class file?
Date: Mon, 25 Jul 2016 21:03:14 -0400
Organization: Aioe.org NNTP Server
Lines: 31
Message-ID: <nn6csg$f03$1@gioia.aioe.org>
References: <nn07hl$8ti$1@gioia.aioe.org> <nn0t8n$17np$1@gioia.aioe.org> <q38e6d-nn9.ln1@s.simpson148.btinternet.com> <nn29sl$old$1@gioia.aioe.org> <8bnf6d-sua.ln1@s.simpson148.btinternet.com> <nn3e5r$dk1$1@gioia.aioe.org> <209i6d-u46.ln1@s.simpson148.btinternet.com>
NNTP-Posting-Host: 7SK6yTFfqwlIPNBLl3l7Qg.user.gioia.aioe.org
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 8bit
X-Complaints-To: abuse@aioe.org
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0
X-Notice: Filtered by postfilter v. 0.8.2
Xref: csiph.com comp.lang.java.programmer:35138

On 7/25/2016 4:21 PM, Steven Simpson wrote:
> On 24/07/16 23:06, Arne Vajhøj wrote:
>> On 7/24/2016 5:08 PM, Steven Simpson wrote:
>>> With the output directory in the classpath, doesn't it mean that javac
>>> will attempt a kind of incremental build?  And doesn't it then miss some
>>> not particularly extraordinary cases (inlined constants; return types),
>>> leading to broken builds?
>> The problem you mention is real and need to be handled. There are
>> ways to do that via various build scripts from OS shell to ant to
>> newer build frameworks.
>
> I was not convinced that Ant would be enough, as the <javac> task
> behaves largely as [javac -classpath out -d out], comparing timestamps
> of corresponding .java and .class files, so it's exposed to the same
> problems.  Combining <depend> with <javac> should do better, but it
> looked like it would still miss inlined constants, so I tried it out:

> So Ant will handle the two mentioned cases if used with <depend> and
> javac from JDK8.

That was not my point.

My point was the much simpler fact that with a script it is easy
to start by deleting all class files.

:-)

Arne