@Nonnull
    static SettingsBuilderRequest build(
            @Nonnull ProtoSession session, @Nonnull Path installationSettingsPath, @Nonnull Path userSettingsPath) {
        return build(session, Sources.fromPath(installationSettingsPath), null, Sources.fromPath(userSettingsPath));
    }

    @Nonnull
    static SettingsBuilderRequest build(
            @Nonnull ProtoSession session,
            @Nullable Source installationSettingsSource,

        Source source = Sources.fromPath(testFile);
        try (InputStream inputStream = source.openStream()) {
            String readContent = new String(inputStream.readAllBytes());
            assertEquals(content, readContent);
        }
    }

    @Test
    void testNullHandling() {
        assertThrows(NullPointerException.class, () -> Sources.fromPath(null));

                                ? Sources.fromPath(installationToolchainsFile)
                                : null)
                .userToolchainsSource(
                        userToolchainsPath != null && Files.exists(userToolchainsPath)
                                ? Sources.fromPath(userToolchainsPath)
                                : null)
                .build();
    }

     *
     * @param path the path to the file
     * @return a new Source instance
     * @throws NullPointerException if path is null
     */
    @Nonnull
    public static Source fromPath(@Nonnull Path path) {
        return new PathSource(requireNonNull(path, "path"));
    }

    /**
     * Creates a new build source for the specified path.