import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE;
import static java.util.Collections.singletonList;
import static java.util.Collections.singletonMap;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.Lists;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.collect.testing.features.MapFeature;

                    return singletonMap(entry.getKey(), entry.getValue());
                default:
                    return new MapN<>(map);
            }
        }
    }

    @SuppressWarnings("unchecked")
    static <K, V> Map<K, V> emptyMap() {
        return (Map<K, V>) EMPTY_MAP;
    }

    static <K, V> Map<K, V> singletonMap(K key, V value) {
        return new Map1<>(key, value);
    }

import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE;
import static java.util.Collections.singleton;
import static java.util.Collections.singletonMap;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.SetMultimap;
import com.google.common.collect.testing.features.CollectionSize;

              @Override
              protected Map<String, String> create(Entry<String, String>[] entries) {
                return singletonMap(entries[0].getKey(), entries[0].getValue());
              }
            })
        .named("singletonMap")
        .withFeatures(
            MapFeature.ALLOWS_NULL_KEYS,
            MapFeature.ALLOWS_NULL_VALUES,
            MapFeature.ALLOWS_ANY_NULL_QUERIES,

import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE;
import static java.util.Collections.singleton;
import static java.util.Collections.singletonMap;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.SetMultimap;
import com.google.common.collect.testing.features.CollectionSize;

        // Full NTLM handshake testing would require more complex mocking

        // Arrange - Mock a server that supports NTLM
        mockResponse(HTTP_UNAUTHORIZED, "Unauthorized", Collections.singletonMap("WWW-Authenticate", Collections.singletonList("NTLM")),
                new ByteArrayInputStream(new byte[0]));

        // Act - Trigger handshake
        int responseCode = ntlmConnection.getResponseCode();

    @Test
    void testMulti() {
        MavenProject project = new MavenProject();
        project.setCollectedProjects(List.of());
        Map<MavenProject, List<MavenProject>> projects = Collections.singletonMap(project, Collections.emptyList());

        BuildPlan plan = calculateLifecycleMappings(projects, "package");

        new BuildPlanLogger().writePlan(System.out::println, plan);
    }

    @Test

            parameters.put("jqueryFiles", getJquery().getFiles());

            copySpec.filter(parameters, ReleaseNotesTransformer.class);
            copySpec.filter(Collections.singletonMap("tokens", getReplacementTokens().get()), ReplaceTokens.class);
        });
    }

        if (org.apache.maven.artifact.Artifact.SCOPE_SYSTEM.equals(artifact.getScope())) {
            String localPath = (artifact.getFile() != null) ? artifact.getFile().getPath() : "";
            props = Collections.singletonMap(MavenArtifactProperties.LOCAL_PATH, localPath);
        }

        Artifact result = new DefaultArtifact(
                artifact.getGroupId(),
                artifact.getArtifactId(),

                .map(p -> XmlNode.newInstance(
                        p.getName(),
                        p.getExpression(),
                        p.getDefaultValue() != null
                                ? Collections.singletonMap("default-value", p.getDefaultValue())
                                : null,
                        null,
                        null))
                .collect(Collectors.toList());