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Subject: Re: Why isn't maven-dependency-plugin copying my artifacts anymore?
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From: Mark Eggers <its_toasted@yahoo.com.INVALID>
Message-ID: <56E20936.7080003@yahoo.com>
Date: Thu, 10 Mar 2016 15:54:30 -0800
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From: Mark Eggers <its_toasted@yahoo.com>
To: Maven Users List <users@maven.apache.org>
Message-ID: <56E20936.7080003@yahoo.com>
Subject: Re: Why isn't maven-dependency-plugin copying my artifacts anymore?
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David,

I just upgraded to 3.3.9, and ran the following on one of my projects
(twice):

mvn clean package

In both cases the JAR files were copied to my output directory and
included in both the zip and tar.gz files.

I guess a little more information is needed??

=2E . . just my two cents
/mde/

On 3/10/2016 3:44 PM, David M. Karr wrote:
> On 03/10/2016 03:36 PM, Mark Eggers wrote:
>> David,
>>
>> If you're providing a list of dependencies, then yes you'll use the co=
py
>> instead of copy-dependencies.
>>
>> See the following for that information:
>>
>> https://maven.apache.org/plugins/maven-dependency-plugin/index.html
>>
>> Also, I notice that you don't have outputDirectory specified. If you
>> don't, the dependencies will be copied to
>> ${project.build.directory}/dependency.
>=20
> Actually, I was specifying that individually on each artifactItem, but
> it's definitely an improvement to only specify that once.  In any case,=

> it still makes no difference.  It's not writing the artifacts, whether =
I
> use "copy" or "copy-dependencies", or whether I say to write them to
> "libs" or "${project.build.directory}/libs". It ("copy", to be specific=
)
> did it the first time I ran this, but never since then.
>=20
> I'm using Maven 3.3.9, with JDK 1.8.0_60.
>=20
>>
>> See the following for that information:
>>
>> https://maven.apache.org/plugins/maven-dependency-plugin/copy-mojo.htm=
l
>>
>> . . . just my two cents
>> /mde/
>>
>> On 3/10/2016 3:22 PM, David M. Karr wrote:
>>> Thanks, but replacing my "manual" copy goal with "copy-dependencies" =
and
>>> implicit dependency declarations made no difference.  No error at thi=
s
>>> phase, it just doesn't do anything.
>>>
>>> On 03/10/2016 02:57 PM, Mark Eggers wrote:
>>>> David,
>>>>
>>>> On 3/10/2016 2:31 PM, David M. Karr wrote:
>>>>> Several days ago, on the advice of someone on another list, I
>>>>> configured
>>>>> the use of the "maven-dependency-plugin" in my POM so that the buil=
d
>>>>> would copy some dependencies into a local folder, not inside the
>>>>> target
>>>>> folder.
>>>>>
>>>>> This worked the very first time I ran the build with it, and I've b=
een
>>>>> using the results for a while.
>>>>>
>>>>> Today I started to look at this again, to ensure that these copied
>>>>> artifacts would be properly cleaned up from "mvn clean".  I first
>>>>> tried
>>>>> reconfiguring where it wrote the jars, changing it from "libs" to
>>>>> "target/libs".  For some reason, when I ran the build, it didn't
>>>>> create
>>>>> "target/libs", nor did it copy the jars.  At that point, I thought
>>>>> there
>>>>> was some issue with writing them into a subfolder of "target".
>>>>>
>>>>> I then changed it back to "libs", but I implemented additional
>>>>> "maven-clean-plugin" configuration to make it delete that folder.
>>>>> When I
>>>>> ran "mvn clean", it did what I expected, removing that folder, alon=
g
>>>>> with "target".
>>>>>
>>>>> However, when I then tried to build the whole thing again, I found
>>>>> that
>>>>> it wasn't creating the "libs" folder, and it wasn't copying the jar=
s
>>>>> there.  I then tried manually creating "libs", but that didn't
>>>>> help.  I
>>>>> tried adding "--debug", which didn't tell me anything useful.  I
>>>>> imagine
>>>>> the same thing that is making it not copy the jars into "libs" is t=
he
>>>>> same thing that prevented it writing them into "target/libs", so th=
ere
>>>>> likely wasn't a real issue with using a subfolder of "target", but
>>>>> something else is just preventing it from copying the jars.
>>>>>
>>>>> This is what I have in the POM for this plugin (eliding the details=
 of
>>>>> each artifact):
>>>>> -----------------
>>>>>           <plugin>
>>>>> <groupId>org.apache.maven.plugins</groupId>
>>>>> <artifactId>maven-dependency-plugin</artifactId>
>>>>>               <version>2.10</version>
>>>>>               <executions>
>>>>>                   <execution>
>>>>>                       <id>copy</id>
>>>>>                       <phase>package</phase>
>>>>>                       <goals>
>>>>>                           <goal>copy</goal>
>>>>>                       </goals>
>>>>>                       <configuration>
>>>>>                           <artifactItems>
>>>>>                               <artifactItem>
>>>>>                               ...
>>>>>                               </artifactItem>
>>>>>                               <artifactItem>
>>>>>                               ...
>>>>>                               </artifactItem>
>>>>>                               <artifactItem>
>>>>>                               ...
>>>>>                               </artifactItem>
>>>>>                               <artifactItem>
>>>>>                               ...
>>>>>                               </artifactItem>
>>>>>                           </artifactItems>
>>>>>                       </configuration>
>>>>>                   </execution>
>>>>>               </executions>
>>>>>           </plugin>
>>>>> -------------------
>>>> My copy looks like this:
>>>>
>>>> <plugin>
>>>>    <groupId>org.apache.maven.plugins</groupId>
>>>>    <artifactId>maven-dependency-plugin</artifactId>
>>>>    <version>2.10</version>
>>>>    <executions>
>>>>     <execution>
>>>>      <phase>prepare-package</phase>
>>>>      <goals>
>>>>       <goal>copy-dependencies</goal>
>>>>      </goals>
>>>>      <configuration>
>>>>       <outputDirectory>${project.build.directory}/lib</outputDirecto=
ry>
>>>>       <includeScope>compile</includeScope>
>>>>      </configuration>
>>>>     </execution>
>>>>    </executions>
>>>> </plugin>
>>>>
>>>> I'm currently running 3.3.3 and JDK 1.8.0_74. I need to upgrade my
>>>> Maven.
>>>>
>>>> This works as expected, with dependencies getting copied to target/l=
ib.
>>>>
>>>> I have this in my JAR plugin:
>>>>
>>>> <addClasspath>true</addClasspath>
>>>> <classpathPrefix>lib/</classpathPrefix>
>>>>
>>>> along with specifying the main class.
>>>>
>>>> I create both a zip and a tar.gz file with the assembly plugin.
>>>>
>>>> An end user just unpacks the archive, changes to the directory where=

>>>> the
>>>> archive was unpacked, and runs java -jar ${artifactId}.jar.
>>>>
>>>> Seems to work reasonably well.
>>>>
>>>> . . . just my two cents
>>>> /mde/


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