maven-dependency-plugin:copy tries to copy classes

Question

I have parent pom and two module poms. In first module I want to copy second module (jar) to some folder. When I compiling project from first module pom - it works, but when I'm trying to compile from parent project pom, plugin tries to copy module classes insted of jar:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.1:copy (default) on project module1: Error copying artifact from /home/chardex/projects/test/module2/target/classes to /home/chardex/projects/test/module1/target/lib/classes: /home/chardex/projects/test/module2/target/classes (Is a directory) -> [Help 1]

   <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-dependency-plugin</artifactId>
        <executions>
            <execution>
                <phase>compile</phase>
                <goals>
                    <goal>copy</goal>
                </goals>
                <configuration>
                    <artifactItems>            
                        <artifactItem>
                            <groupId>...</groupId>
                            <artifactId>module2</artifactId>
                            <version>...</version>
                            <type>jar</type>
                        </artifactItem>
                    </artifactItems>
                </configuration>
            </execution>
        </executions>
    </plugin>

Thanks.

Answer 1

I believe this is a bug in maven-dependency-plugin: http://jira.codehaus.org/browse/MDEP-259

Answer 2

While doing this in eclipse, unchecking the "Resolve workspace artifacts" got rid of the error, and I could do a clean install successfully.