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http://jira.codehaus.org/browse/MASSEMBLY-247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_116586
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Anders Eriksson commented on MASSEMBLY-247:
-------------------------------------------

It seems that we've experienced this problem too. With several versions of 
SNAPSHOT jars in the local repository it seems like the assembly plugin takes 
any arbitrary jar from the local repository. 

For example the following files in the local repository 

lillmacen:0.2.0-SNAPSHOT anders$ ls -latr *.jar
-rw-r--r--  1 anders  staff   7432 22 Nov 15:39 
fas3-core-api-0.2.0-20071121.140025-4.jar
-rw-r--r--  1 anders  staff   9255 29 Nov 13:08 
fas3-core-api-0.2.0-20071128.090034-6.jar
-rw-r--r--  1 anders  staff  23911 12 Dec 13:39 fas3-core-api-0.2.0-SNAPSHOT.jar
-rw-r--r--  1 anders  staff  23911 12 Dec 13:39 
fas3-core-api-0.2.0-20071212.120216-27.jar

would not necessarily pick our intended  fas3-core-api-0.2.0-SNAPSHOT.jar

The POM snippet looks like this:

        <build>
                <plugins>
                        <plugin>
                                <artifactId>maven-assembly-plugin</artifactId>
                                <configuration>
                                        <descriptorRefs>
                                                <descriptorRef>
                                                        jar-with-dependencies
                                                </descriptorRef>
                                        </descriptorRefs>
                                </configuration>

                                <executions>
                                        <execution>
                                                <id>make-assembly</id>
                                                <phase>package</phase>
                                                <goals>
                                                        <goal>attached</goal>
                                                </goals>
                                        </execution>
                                </executions>
                        </plugin>
                </plugins>
        </build>

Our workaround is to completely empty the local repository and have it 
reinstalled with only the latest SNAPSHOT before trying to use the assembly 
plugin. 

This problem have so far only been seen on Windows XP (even if the explaining 
example above shows files from a Mac) using Eclipse 3.3 and the M2Eclipse 
plugin http://m2eclipse.codehaus.org/ which I believe is built on Maven 2.1.

> versions of included dependencies in multi-module projects are not 
> deterministic
> --------------------------------------------------------------------------------
>
>                 Key: MASSEMBLY-247
>                 URL: http://jira.codehaus.org/browse/MASSEMBLY-247
>             Project: Maven 2.x Assembly Plugin
>          Issue Type: Bug
>    Affects Versions: 2.1, 2.2-beta-1, 2.2-beta-2
>         Environment: Maven 2.0.4 an assembly plugin 2.2-SNAPSHOT
>            Reporter: Tarek El-Sibay
>         Attachments: assembly-dependency-problem.zip
>
>
> There is a problem with including dependency jars in an assembly. The 
> resoultion of the version of  the dependencies is not deterministic. The 
> attached zipfile contains three projects, assembly, module-One and modue-Two. 
> the assembly project is the aggregator of module-One and module-Two. 
> module-One has a dep to junit 3.8.1, module-Two to junit 4.0. The assembly 
> project contains a DependencyManagement  with a dependency to junit 4.0. 
> After executing 'mvn clean package '  in the assembly project the resulting 
> zip file assembly-1.0-SNAPSHOT-luna.zip contains junit 3.8.1, after 'mvn 
> clean install' it contains junit 4.0.
> Sometimes its the other way around, but playing with both commands shows that 
> the resulting version of junit is not deterministic.

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