prerequisiteExceptions.add(e);
            }
        });
        // aggregate all exceptions
        if (!prerequisiteExceptions.isEmpty()) {
            String messages = prerequisiteExceptions.stream()
                    .map(IllegalStateException::getMessage)
                    .collect(Collectors.joining(", "));
            PluginIncompatibleException pie = new PluginIncompatibleException(

        logger.debug(indent + artifact + " (not setting artifactScope to: " + ignoredScope + "; local artifactScope "
                + artifact.getScope() + " wins)");

        // TODO better way than static? this might hide messages in a reactor
        if (!ignoredArtifacts.contains(artifact)) {
            logger.warn("\n\tArtifact " + artifact + " retains local artifactScope '" + artifact.getScope()

    /** */
    private List<String> messages;

    public ModelValidationResult() {
        messages = new ArrayList<>();
    }

    public int getMessageCount() {
        return messages.size();
    }

    public String getMessage(int i) {
        return messages.get(i);
    }

    public List<String> getMessages() {
        return Collections.unmodifiableList(messages);
    }

          <include>driver.properties</include>
        </includes>
      </resource>
      <resource>
        <directory>/src/messages</directory>
        <targetPath>org/apache/maven/messages</targetPath>
        <includes>
          <include>messages*.properties</include>
        </includes>
      </resource>
    </resources>
  </build>

  <reports>
    <report>maven-jdepend-plugin</report>

  It means warning users that since the network is missing, certain features and
  operations will be unavailable, rather than simply waiting for those
  operations to fail, then trying to help users decipher the error messages they
  get as a result.

* Implications for Resolution

** Dependency Resolution

  This one is obvious...we only have access to the repositories using

            For example, if you want that resource to appear in a specific package
            ({@code org.apache.maven.messages}), you must specify this
            element with this value: {@code org/apache/maven/messages}.
            This is not required if you simply put the resources in that directory
            structure at the source, however.
          </description>

 with its <<<DefaultExceptionHandler>>> implementation
 ({{{./xref/org/apache/maven/exception/DefaultExceptionHandler.html}source}}), use to transform exception into useful end-user messages.

* Toolchains

 * {{{./toolchains.html}Toolchains descriptor reference}},

LogFactory.getInstance(String name). Your application can contain references to multiple loggers that are used for different purposes. A typical scenario for a server application is to have each major component of the server use its own Log instance. Cause messages to be logged (if the corresponding detail level is enabled) by calling appropriate methods (debug(), info(), warn(), error, and fatal()). For convenience, LogFactory also offers a static method getLog() that combines the typical two-step pattern:...

LogFactory.getInstance(String name). Your application can contain references to multiple loggers that are used for different purposes. A typical scenario for a server application is to have each major component of the server use its own Log instance. Cause messages to be logged (if the corresponding detail level is enabled) by calling appropriate methods (trace(), debug(), info(), warn(), error, and fatal()). For convenience, LogFactory also offers a static method getLog() that combines the typical two-step...