Xpp3Dom dom = new Xpp3Dom("reportPlugin", plugin.getLocation(""));

        addDom(dom, "groupId", plugin.getGroupId(), plugin.getLocation("groupId"));
        addDom(dom, "artifactId", plugin.getArtifactId(), plugin.getLocation("artifactId"));
        addDom(dom, "version", plugin.getVersion(), plugin.getLocation("version"));

        Xpp3Dom configuration = (Xpp3Dom) plugin.getConfiguration();

        }

        LOGGER.debug(
                "Reading installation settings from '{}'",
                getLocation(settingsRequest.getGlobalSettingsSource(), settingsRequest.getGlobalSettingsFile()));
        LOGGER.debug(
                "Reading project settings from '{}'",
                getLocation(settingsRequest.getProjectSettingsSource(), settingsRequest.getProjectSettingsFile()));
        LOGGER.debug(

    } // -- InputSource clone()

    /**
     * Get the path/URL of the POM or {@code null} if unknown.
     *
     * @return String
     */
    public String getLocation() {
        return this.location;
    } // -- String getLocation()

    /**
     * Get the identifier of the POM in the format {@code
     * <groupId>:<artifactId>:<version>}.
     *
     * @return String
     */

        } catch (XMLStreamException e) {
            throw new SettingsParseException(
                    e.getMessage(),
                    e.getLocation().getLineNumber(),
                    e.getLocation().getColumnNumber(),
                    e);
        }
    }

    @Override
    public Settings read(Reader input, Map<String, ?> options) throws IOException {

        } catch (XMLStreamException e) {
            throw new ToolchainsParseException(
                    e.getMessage(),
                    e.getLocation().getLineNumber(),
                    e.getLocation().getColumnNumber(),
                    e);
        }
    }

    @Override
    public PersistedToolchains read(Reader input, Map<String, ?> options) throws IOException {

                            "Conflicting extension %s: %s vs %s",
                            key,
                            formatLocation(conflict.getLocation("")),
                            formatLocation(coreExtension.getLocation(""))));
                }
            }
        }
        if (!conflicts.isEmpty()) {
            context.logger.warn("Found " + conflicts.size() + " extension conflict(s):");

        } catch (XMLStreamException e) {
            throw new MetadataParseException(
                    e.getMessage(),
                    e.getLocation().getLineNumber(),
                    e.getLocation().getColumnNumber(),
                    e);
        }
    }

    @Override
    public Metadata read(InputStream input, Map<String, ?> options) throws IOException {

                            .setMessage("Malformed POM " + modelSource.getLocation() + ": " + e.getMessage())
                            .setException(e));
                } else {
                    problems.add(new ModelProblemCollectorRequest(Severity.WARNING, Version.V20)
                            .setMessage("Malformed POM " + modelSource.getLocation() + ": " + e.getMessage())
                            .setException(e));

            }
            target.setProperties(merged);
            target.setLocation(
                    "properties",
                    InputLocation.merge(
                            target.getLocation("properties"), source.getLocation("properties"), sourceDominant));
        }

        private void putAll(Map<Object, Object> s, Map<Object, Object> t, Object excludeKey) {
            for (Map.Entry<Object, Object> e : t.entrySet()) {

    }

    @Override
    public String getLocation() {
        return location;
    }

    /**
     * Gets the content of this source.
     *
     * @return The underlying character stream, never {@code null}.
     */
    public String getContent() {
        return content;
    }

    @Override
    public String toString() {
        return getLocation();
    }

    @Override