[MSITE-751] Site generation fails with source directory not found on multimodule project

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Cannot Reproduce
• Affects Version/s: 3.4
• Component/s: Maven 3, multi module
• Environment: Windows 10, JDK8, Maven 3.3.3
• Flags: Important
• Assignee: Unassigned
• Reporter: Pedro Vieira Silva
• Created: 10/Nov/15 18:23
• Updated: 27/Feb/18 19:24
• Resolved: 27/Feb/18 19:24

Description

When building site for a multimodule project maven site:site fails with the following error:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.4:site (default-cli) on project eclipse: Execution default-cli of goal org.apache.maven.plugins:maven-site-plugin:3.4:site failed: Source directory 'D:\test-project\target\classes' not exists -> [Help 1]

The parent project has packaging pom so it hasn't any target/classes directory inside it ...But test-project has several subprojects inside it that in turn have packaging type set to jar.

My maven configuration is as follows:

[...]
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-site-plugin</artifactId>
          <version>3.4</version>
          <dependencies>
            <dependency>
              <groupId>org.apache.maven.doxia</groupId>
              <artifactId>doxia-module-markdown</artifactId>
              <version>1.6</version>
            </dependency>
          </dependencies>
          <configuration>
            <inputEncoding>UTF-8</inputEncoding>
            <outputEncoding>UTF-8</outputEncoding>
          </configuration>
        </plugin>
[...]
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-javadoc-plugin</artifactId>
          <version>2.10.3</version>
          <configuration>
            <failOnError>false</failOnError>
          </configuration>		  
          <executions>
            <execution>
              <id>aggregate</id>
              <goals>
                <goal>aggregate</goal>
              </goals>
              <phase>site</phase>
            </execution>
          </executions>
        </plugin>
[..]
  <distributionManagement>
    <site>
      <id>test-project-site</id>
      <name>My Site</name>
      <url>file:///var/www/html/test-project</url>
    </site>
  </distributionManagement>

[...]