// Ensure environment variables are not set (in real scenario)
        // In this test, we expect IOException when project ID is blank
        try {
            conn.connect();
            fail("Should throw IOException when project ID is not set");
        } catch (IOException e) {
            assertTrue(e.getMessage().contains("GCS_PROJECT_ID is blank"));
        }
    }

    /**

    /**
     * Gets the project settings file.
     *
     * @return The project settings file or {@code null} if none.
     * @since 4.0.0
     */
    File getProjectSettingsFile();

    /**
     * Sets the project settings file. A non-existent settings file is equivalent to empty settings.
     *
     * @param projectSettingsFile The project settings file, may be {@code null} to disable project settings.

        public CacheKey(
                MavenProject project,
                List<RemoteRepository> repositories,
                Collection<String> scopesToCollect,
                Collection<String> scopesToResolve,
                boolean aggregating,
                RepositorySystemSession session) {

            groupId = project.getGroupId();
            artifactId = project.getArtifactId();
            version = project.getVersion();

		<url>scm:git:******@****.***:codelibs/corelib.git</url>
		<developerConnection>scm:git:******@****.***:codelibs/corelib.git</developerConnection>
	  <tag>HEAD</tag>
  </scm>
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>
	<build>
		<plugins>
			<plugin>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.14.0</version>
				<configuration>

        <version>2.1-SNAPSHOT</version>
        <configuration>
          <outputFile>target/expression.properties</outputFile>
          <expressions>
            <expression>project/build/resources/0/filtering</expression>
            <expression>project/repositories</expression>
          </expressions>
        </configuration>
        <executions>
          <execution>
            <id>test</id>
            <phase>validate</phase>

     * {@code profile > project}, hence active profile property may override project property.
     * <p>
     * The caller of this method should decide whether there is a project in scope (hence, a project instance
     * needs to be passed) or not.
     *
     * @param project {@link Project} or {@code null}.
     * @return the effective properties, never {@code null}
     */
    @Nonnull

    /**
     * Gets the project to resolve dependencies for.
     *
     * @return The project to resolve dependencies for or {@code null} if not set.
     */
    MavenProject getMavenProject();

    /**
     * Sets the project to resolve dependencies for.
     *
     * @param project The project to resolve dependencies for, may be {@code null}.
     * @return This request for chaining, never {@code null}.

    }

    List<Project> getProjects(List<org.apache.maven.project.MavenProject> projects);

    /**
     * May return null if the input project is null or is not part of the reactor.
     */
    @Nullable
    Project getProject(org.apache.maven.project.MavenProject project);

    List<org.apache.maven.artifact.repository.ArtifactRepository> toArtifactRepositories(

        MavenProject project = session.getCurrentProject();

        project.setArtifacts(resolver.resolve(project, Collections.singleton(Artifact.SCOPE_COMPILE), session));

        List<String> elements = project.getCompileClasspathElements();
        assertEquals(2, elements.size());

        @SuppressWarnings("deprecation")
        List<Artifact> artifacts = project.getCompileArtifacts();

        assertEquals("https://project.url/child", pom.getValue("url"));
        assertEquals("https://viewvc.project.url/child", pom.getValue("scm/url"));
        assertEquals("https://scm.project.url/child", pom.getValue("scm/connection"));
        assertEquals("https://scm.project.url/child", pom.getValue("scm/developerConnection"));
        assertEquals("https://site.project.url/child", pom.getValue("distributionManagement/site/url"));