</parameter>
      </parameters>
      <configuration>
        <project implementation="org.apache.maven.project.MavenProject" default-value="${project}"/>
        <session implementation="org.apache.maven.execution.MavenSession" default-value="${session}"/>
        <forkId implementation="int" default-value="-1">${forkId}</forkId>
      </configuration>
    </mojo>
    <mojo>
      <goal>end-fork</goal>

    String findTool(String toolName);

    /**
     * Let the toolchain decide if it matches requirements defined
     * in the toolchain plugin configuration.
     * @param requirements Map<String, String> key value pair, may not be {@code null}
     * @return {@code true} if the requirements match, otherwise {@code false}
     */
    boolean matchesRequirements(Map<String, String> requirements);

    }

    public File getBasedir() {
        return (pomFile != null) ? pomFile.getParentFile() : null;
    }

    public void setValueOnModel(String expression, Object value) {
        context.setValue(expression, value);
    }

    /*
    public int containerCountForUri( String uri )
        throws IOException
    {
        Validate.notEmpty( uri, "uri can neither be null nor empty " );

        if (logger.isDebugEnabled()) {
            logger.debug("  (s) " + fieldName + " = " + toString(value));
        }
    }

    public void notifyFieldChangeUsingReflection(String fieldName, Object value, Object target) {
        if (logger.isDebugEnabled()) {
            logger.debug("  (f) " + fieldName + " = " + toString(value));
        }
    }

    /**

  <name>Paramdoc</name>
  <description><![CDATA[Documentation on parameter expressions supported by Maven for use in plugins.]]></description>
  <defaults>
    <default>
      <key>package</key>
      <value>org.apache.maven.usability.plugin</value>
    </default>
  </defaults>
  <classes>
    <class rootElement="true" xml.tagName="paramdoc">
      <version>1.0.0</version>
      <name>ExpressionDocumentation</name>

                  <configuration>
                    <systemProperties>
                      <property>
                        <name>my.property</name>
                        <value>my.value</value>
                      </property>
                    </systemProperties>
                  </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>

        final Supplier<T> supplier;
        volatile Object value;

        CachingSupplier(Supplier<T> supplier) {
            this.supplier = supplier;
        }

        @Override
        @SuppressWarnings({"unchecked", "checkstyle:InnerAssignment"})
        public T get() {
            Object v;
            if ((v = value) == null) {
                synchronized (this) {

@Override public Description appendDescriptionOf(SelfDescribing value) { value.describeTo(this); return this; } @Override public Description appendValue(Object value) { if (value == null) { append("null"); } else if (value instanceof String) { toJavaSyntax((String) value); } else if (value instanceof Character) { append('"'); toJavaSyntax((Character) value); append('"'); } else if (value instanceof Short) { append('<'); append(descriptionOf(value)); append("s>"); } else if (value instanceof Long) { append('<');...

              <goals>
                <goal>parent-2</goal>
              </goals>
            </execution>
            <execution>
              <!-- NOTE: <id> deliberately omitted to use default value -->
              <phase>validate</phase>
              <goals>
                <goal>parent-default</goal>
              </goals>
            </execution>
          </executions>
        </plugin>
      </plugins>

    /**
     * Gets the user properties to use for interpolation and profile activation. The user properties have been
     * configured directly by the user on his discretion, e.g. via the {@code -Dkey=value} parameter on the command
     * line.
     *
     * @return The user properties, never {@code null}.
     */
    Map<String, String> getUserProperties();

    /**