[MDEP-187] dependency:copy fails when invoked from m2e with workspace resolution enabled, or more generally when copying within reactor for phases earlier than package

**[Igor Fedorenko](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=igorf)** opened **[MDEP-187](https://issues.apache.org/jira/browse/MDEP-187?redirect=false)** and commented

m2e resolves workspace artifacts to their output folders but dependency:copy expects all artifacts to be files. I will provide trivial patch shortly.

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**Affects:** 2.1

**Attachments:**
- [MDEP-187.diff](https://issues.apache.org/jira/secure/attachment/12715058/MDEP-187.diff) (_912 bytes_)
- [MDEP-187b.diff](https://issues.apache.org/jira/secure/attachment/12714989/MDEP-187b.diff) (_6.07 kB_)
- [MDEP-187c.diff](https://issues.apache.org/jira/secure/attachment/12715009/MDEP-187c.diff) (_2.45 kB_)

**Issue Links:**
- [MDEP-259](https://issues.apache.org/jira/browse/MDEP-259) copy-dependencies fails with "Error copying artifact from .../target/classes to .../classes"
(_**"is duplicated by"**_)
- [MDEP-291](https://issues.apache.org/jira/browse/MDEP-291) Error when copying within reactor for phases earlier than package
(_**"is duplicated by"**_)
- [MASSEMBLY-411](https://issues.apache.org/jira/browse/MASSEMBLY-411) Error on copy dependencies using Assembler Plugin (m2e Eclipse Plugin Workspace Resolution)

- [MDEP-98](https://issues.apache.org/jira/browse/MDEP-98) dependency:unpack: The source must not be a directory

- [MDEP-194](https://issues.apache.org/jira/browse/MDEP-194) ArchiverException when using maven dependency plugin in multi-module projects

- [MDEP-394](https://issues.apache.org/jira/browse/MDEP-394) unpack behaves differently in multi-module build

**Remote Links:**
- [GitHub Pull Request #31
](https://github.com/apache/maven-plugins/pull/31)

56 votes, 63 watchers

Start with the dependency:copy goal and the attached MDEP-187 diffs, then reproduce the failure with m2e workspace resolution enabled or during a reactor phase before package. Done means dependency:copy handles workspace output directories and reactor artifacts without reporting a copy failure.

Written by the indexing model from the issue text.