if (propValue.startsWith("!")) {
                reverseValue = true;
                propValue = propValue.substring(1);
            }

            // we have a value, so it has to match the system value...
            return reverseValue != propValue.equals(sysValue);
        } else {
            return reverseName != (sysValue != null && !sysValue.isEmpty());
        }
    }

    @Override

    @Nonnull
    default MessageBuilder a(CharSequence value, int start, int end) {
        return append(value, start, end);
    }

    /**
     * Append content to the message buffer.
     *
     * @param value the content to append
     * @return the current builder
     */
    @Nonnull
    default MessageBuilder a(CharSequence value) {
        return append(value);
    }

    /**

        return missingParameters.values();
    }

    public void notifyFieldChangeUsingSetter(String fieldName, Object value, Object target) {
        delegate.notifyFieldChangeUsingSetter(fieldName, value, target);

        if (mojo == target) {
            notify(fieldName, value);
        }
    }

    public void notifyFieldChangeUsingReflection(String fieldName, Object value, Object target) {

 * A test which demonstrates maven's recursive inheritance where
 * a distinct value is taken from each parent contributing to
 * the final model of the project being assembled. There is no
 * overriding going on amongst the models being used in this test:
 * each model in the lineage is providing a value that is not present
 * anywhere else in the lineage. We are just making sure that values
 * down in the lineage are bubbling up where they should.
 *
 */

    /**
     * Sets 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.
     *
     * @param userProperties The user properties, may be {@code null}.
     * @return This request, never {@code null}.
     */

                                    }

                                    @Override
                                    public String setValue(String value) {
                                        return (String) e.setValue(value);
                                    }
                                };
                                break;
                            }
                        }

        // Check p0 value for org name
        // ----------------------------------------------------------------------

        MavenProject p0 = getProject(projectFile("maven.t01", "p0"));

        assertEquals("p0-org", p0.getOrganization().getName());

        // ----------------------------------------------------------------------
        // Check p1 value for org name

        </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>

    }

    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));
        }
    }

    /**