this.url = Objects.requireNonNull(url, "url cannot be null");
        this.hashCode = Objects.hashCode(url);
    }

    @Override
    public InputStream getInputStream() throws IOException {
        return url.openStream();
    }

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

    /**
     * Gets the URL of this source.
     *

  <ciManagement>
    <system>none</system>
    <url>https://ci.apache.org/spacy%20path</url>
  </ciManagement>
  <distributionManagement>
    <repository>
      <id>dist</id>
      <url>scm:svn:svn+ssh://dist.apache.org/spacy%20path</url>
    </repository>
    <snapshotRepository>
      <id>snap</id>
      <url>scm:svn:svn+ssh://snap.apache.org/spacy%20path</url>
    </snapshotRepository>
    <site>
      <id>site</id>

            url.append(parentUrl);
            concatPath(url, pathAdjustment);
            concatPath(url, childPath);

            return url.toString();
        }

        private void concatPath(StringBuilder url, String path) {
            if (!path.isEmpty()) {
                boolean initialUrlEndsWithSlash = url.charAt(url.length() - 1) == '/';

            String id, String url, String layoutId, boolean uniqueVersion) throws UnknownRepositoryLayoutException {
        return injectSession(factory.createDeploymentArtifactRepository(id, url, layoutId, uniqueVersion), false);
    }

    public ArtifactRepository createDeploymentArtifactRepository(
            String id, String url, ArtifactRepositoryLayout repositoryLayout, boolean uniqueVersion) {

throws NoSuchRealmException; public void addConstituent(java.net.URL); public ClassRealm locateSourceRealm(String); public void setParent(ClassRealm); public ClassRealm createChildRealm(String) throws DuplicateRealmExcept; public ClassLoader getClassLoader(); public ClassRealm getParent(); public ClassRealm getParentRealm(); public java.net.URL[] getConstituents(); public Class loadClass(String) throws ClassNotFoundExcepti; public java.net.URL getResource(String); public java.util.Enumeration findResources(String)...

      <url>dav:https://dav.codehaus.org/snapshots.repository/plexus</url>
    </snapshotRepository>
    <site>
      <id>codehaus.org</id>
      <url>dav:https://dav.codehaus.org/plexus</url>
    </site>
  </distributionManagement>
  <repositories>
    <repository>
      <id>codehaus.snapshots</id>
      <name>Codehaus Snapshot Development Repository</name>
      <url>http://snapshots.repository.codehaus.org</url>
      <releases>

        NullPointerException e = assertThrows(
                NullPointerException.class, () -> new UrlSource(null), "Should fail, since you must specify a url");
        assertEquals("url cannot be null", e.getMessage());
    }

    @Test
    void testGetInputStream() throws Exception {
        URL txtFile = new File("target/test-classes/source.txt").toURI().toURL();
        UrlSource source = new UrlSource(txtFile);

            throws UnknownRepositoryLayoutException;

    ArtifactRepository createDeploymentArtifactRepository(
            String id, String url, ArtifactRepositoryLayout layout, boolean uniqueVersion);

    ArtifactRepository createArtifactRepository(
            String id,
            String url,
            String layoutId,

      <name>Human Readable Name for this Mirror.</name>
      <url>http://my.repository.com/repo/path</url>
    </mirror>
    -->
    <mirror>
      <id>maven-default-http-blocker</id>
      <mirrorOf>external:http:*</mirrorOf>
      <name>Pseudo repository to mirror external repositories initially using HTTP.</name>
      <url>http://0.0.0.0/</url>
      <blocked>true</blocked>
    </mirror>
  </mirrors>

  </description>
  <url>http://maven.apache.org/</url>
  <issueManagement>
    <system>jira</system>
    <url>http://jira.codehaus.org/browse/MPA</url>
  </issueManagement>
  <ciManagement>
    <system>continuum</system>
    <url>http://maven.zones.apache.org:8080/continuum</url>
    <notifiers>
      <notifier>
        <type>mail</type>
        <configuration>