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From: Kevin Burton <burton@spinn3r.com>
Date: Sun, 5 Apr 2015 11:59:03 -0700
Message-ID: 
 <CAAZU44kbnFsTu7OK1dxmmUWUFBiW3fbSNwyO20rGocMPinN_9Q@mail.gmail.com>
Subject: Re: Easy way to tell if I have .class file conflicts between two
 jars?
To: Maven Users List <users@maven.apache.org>
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Looks like it works but it=E2=80=99s a little too strict. I just manually r=
esolved
some of the dependencies for one of my projects and it=E2=80=99s complainin=
g about
conflicts even though the effective class path doesn=E2=80=99t have those c=
lass
conflicts.  hm.

On Sun, Apr 5, 2015 at 11:11 AM, Robert Scholte <rfscholte@apache.org>
wrote:

> Hi,
>
> take a look at this enforcer rule:
> http://mojo.codehaus.org/extra-enforcer-rules/banDuplicateClasses.html
>
> Robert
>
> Op Sun, 05 Apr 2015 19:57:07 +0200 schreef Kevin Burton <
> burton@spinn3r.com>:
>
>  Im looking for a somewhat easy way to tell if a directory of .jar files
>> contains class reference which conflict.
>>
>> For example,org/xml/sax/XMLReader.class from two incompatible versions.
>>
>> I wrote a simple command that does a find and then a "jar tf" to list th=
e
>> contents, then I sort by the filename, but this creates false positives =
in
>> the case where the files are actually the same .class file version.
>>
>> I think I could just use SHA1 to detect this =E2=80=A6 if the SHA1 is id=
entical I
>> can just ignore it.
>>
>> Of course a WAY better way to do this would be some sort of maven plugin
>> that looked at all dependencies and generated errors/warnings if you add=
 a
>> dependency with class conflicts.  That would be sweet.
>>
>
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Founder/CEO Spinn3r.com
Location: *San Francisco, CA*
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=E2=80=A6 or check out my Google+ profile
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