[MRESOURCES-275] valid location for directory parameter is always required

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.2.0
• Fix Version/s: 3.3.0
• Assignee: Sylwester Lachiewicz
• Reporter: Delany
• Created: 10/Mar/21 10:06
• Updated: 07/Dec/21 00:54
• Resolved: 07/Dec/21 00:54

Description

Suppose I remove src/main/resources.

When I build, default-resources execution logs "skip non existing resourceDirectory"

But when i configure my own execution like so, it throws a null pointer exception:

<plugin>
  <artifactId>maven-resources-plugin</artifactId>
  <version>3.2.0</version>
  <executions>
    <execution>
      <id>readme-resources</id>
      <phase>process-resources</phase>
      <goals>
        <goal>resources</goal>
      </goals>
      <configuration>
        <resources>
          <resource>
          </resource>
        </resources>
      </configuration>
    </execution>
  </executions>
</plugin>

Its a bit confusing because the documentation for the goal makes no mention of a directory parameter, and its obviously a required parameter, and it must be a valid location.

https://maven.apache.org/plugins/maven-resources-plugin/resources-mojo.html