}
        }
        result.setLocations(locations);

        return result;
    } // -- InputLocation merge( InputLocation, InputLocation, java.util.Collection )

    /**
     *
     *
     * @param locations
     */
    public void setLocations(java.util.Map<Object, InputLocation> locations) {
        this.locations = locations;
    } // -- void setLocations( java.util.Map )

    /**

        }

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

                target.setUrl(src);
                target.setLocation("url", source.getLocation("url"));
            } else if (target.getUrl() == null) {
                target.setUrl(extrapolateChildUrl(src, source.isChildProjectUrlInheritAppendPath(), context));
                target.setLocation("url", source.getLocation("url"));
            }
        }
    }

    /*

            }
            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()) {

            assertTrue(
                    location.getSource().getLocation().contains("pom-with-profiles/pom.xml"),
                    "Profile location should contain 'pom-with-profiles/pom.xml', but was: "
                            + location.getSource().getLocation() + " for profile: " + profile.getId());

            // This demonstrates the cross-platform path behavior:

                .map(MojoExecution::getPlugin)
                .filter(p -> p.getLocation("version") != null
                        && p.getLocation("version").getSource() != null
                        && defaulModelId.equals(
                                p.getLocation("version").getSource().getModelId()))
                .distinct()

                mojoDescriptor.getPluginDescriptor().getPlugin().getLocation("");
        if (inputLocation != null && inputLocation.getSource() != null) {
            StringBuilder stringBuilder = new StringBuilder();
            stringBuilder.append(inputLocation.getSource().getModelId());
            String location = inputLocation.getSource().getLocation();
            if (location != null) {

        for (Dependency dependency : project.getDependencies()) {
            if (dependency.getManagementKey().equals("org.apache.maven.its:a:jar")) {
                dependencyLocation = dependency.getLocation("version");
            }
        }
        assertNotNull(dependencyLocation, "missing dependency");
        assertEquals(
                "org.apache.maven.its:bom:0.1", dependencyLocation.getSource().getModelId());

            }
            trackingData.add(indent + plugin.getGroupId() + ":" + plugin.getArtifactId() + ":" + plugin.getVersion());
            indent.append("  ");

            InputLocation location = plugin.getLocation("");
            if (location != null && location.getSource() != null) {
                trackingData.add(indent + location.getSource().getModelId() + " (implicit)");
                indent.append("  ");
            }

        Source src = mock(Source.class);
        IOException ioException = new IOException("MESSAGE");
        doThrow(ioException).when(src).getInputStream();
        doReturn("LOCATION").when(src).getLocation();

        ToolchainsBuildingRequest request = new DefaultToolchainsBuildingRequest();
        request.setGlobalToolchainsSource(src);

        try {
            toolchainBuilder.build(request);