diff --git a/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/HttpClient.java b/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/HttpClient.java
index c327e73588e..7f619611dd9 100644
--- a/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/HttpClient.java
+++ b/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/HttpClient.java
@@ -56,6 +56,7 @@ import org.eclipse.jetty.util.Jetty;
 import org.eclipse.jetty.util.ProcessorUtils;
 import org.eclipse.jetty.util.Promise;
 import org.eclipse.jetty.util.SocketAddressResolver;
+import org.eclipse.jetty.util.URIUtil;
 import org.eclipse.jetty.util.annotation.ManagedAttribute;
 import org.eclipse.jetty.util.annotation.ManagedObject;
 import org.eclipse.jetty.util.component.ContainerLifeCycle;
@@ -1099,11 +1100,17 @@ public class HttpClient extends ContainerLifeCycle
         return proxyConfig;
     }
 
+    /**
+     * Return a normalized port suitable for use by Origin and Address
+     * @param scheme the scheme to use for the default port (if port is unspecified)
+     * @param port the port (0 or negative means the port is unspecified)
+     * @return the normalized port.
+     */
     public static int normalizePort(String scheme, int port)
     {
         if (port > 0)
             return port;
-        return HttpScheme.getDefaultPort(scheme);
+        return URIUtil.getDefaultPortForScheme(scheme);
     }
 
     public ClientConnectionFactory newSslClientConnectionFactory(SslContextFactory.Client sslContextFactory, ClientConnectionFactory connectionFactory)
diff --git a/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/HttpRedirector.java b/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/HttpRedirector.java
index 2a9225e9ee0..15e62727a9f 100644
--- a/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/HttpRedirector.java
+++ b/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/HttpRedirector.java
@@ -30,6 +30,7 @@ import org.eclipse.jetty.http.HttpHeader;
 import org.eclipse.jetty.http.HttpMethod;
 import org.eclipse.jetty.http.HttpStatus;
 import org.eclipse.jetty.util.NanoTime;
+import org.eclipse.jetty.util.URIUtil;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -278,7 +279,7 @@ public class HttpRedirector
             Matcher matcher = URI_PATTERN.matcher(location);
             if (matcher.matches())
             {
-                String scheme = matcher.group(2);
+                String scheme = URIUtil.normalizeScheme(matcher.group(2));
                 String authority = matcher.group(3);
                 String path = matcher.group(4);
                 String query = matcher.group(5);
diff --git a/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/Origin.java b/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/Origin.java
index 2f838969d6c..73b56b8a921 100644
--- a/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/Origin.java
+++ b/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/Origin.java
@@ -20,6 +20,7 @@ import java.util.Map;
 import java.util.Objects;
 
 import org.eclipse.jetty.client.transport.HttpClientTransportDynamic;
+import org.eclipse.jetty.http.HttpURI;
 import org.eclipse.jetty.io.ClientConnectionFactory;
 import org.eclipse.jetty.io.EndPoint;
 import org.eclipse.jetty.util.HostPort;
@@ -74,7 +75,7 @@ public class Origin
 
     public Origin(String scheme, Address address, Object tag, Protocol protocol)
     {
-        this.scheme = Objects.requireNonNull(scheme);
+        this.scheme = URIUtil.normalizeScheme(Objects.requireNonNull(scheme));
         this.address = address;
         this.tag = tag;
         this.protocol = protocol;
@@ -122,9 +123,7 @@ public class Origin
 
     public String asString()
     {
-        StringBuilder result = new StringBuilder();
-        URIUtil.appendSchemeHostPort(result, scheme, address.host, address.port);
-        return result.toString();
+        return HttpURI.from(scheme, address.host, address.port, null).asString();
     }
 
     @Override
diff --git a/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/transport/HttpDestination.java b/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/transport/HttpDestination.java
index 4c61e00350b..ae55652baf0 100644
--- a/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/transport/HttpDestination.java
+++ b/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/transport/HttpDestination.java
@@ -39,6 +39,7 @@ import org.eclipse.jetty.util.Callback;
 import org.eclipse.jetty.util.HostPort;
 import org.eclipse.jetty.util.NanoTime;
 import org.eclipse.jetty.util.Promise;
+import org.eclipse.jetty.util.URIUtil;
 import org.eclipse.jetty.util.annotation.ManagedAttribute;
 import org.eclipse.jetty.util.annotation.ManagedObject;
 import org.eclipse.jetty.util.component.ContainerLifeCycle;
@@ -80,7 +81,8 @@ public class HttpDestination extends ContainerLifeCycle implements Destination,
 
         String host = HostPort.normalizeHost(getHost());
         int port = getPort();
-        if (port != HttpScheme.getDefaultPort(getScheme()))
+        String scheme = getScheme();
+        if (port != URIUtil.getDefaultPortForScheme(scheme))
             host += ":" + port;
         hostField = new HttpField(HttpHeader.HOST, host);
 
diff --git a/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/transport/HttpRequest.java b/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/transport/HttpRequest.java
index 86cb57949f8..8471655ef6f 100644
--- a/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/transport/HttpRequest.java
+++ b/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/transport/HttpRequest.java
@@ -55,6 +55,7 @@ import org.eclipse.jetty.http.HttpField;
 import org.eclipse.jetty.http.HttpFields;
 import org.eclipse.jetty.http.HttpHeader;
 import org.eclipse.jetty.http.HttpMethod;
+import org.eclipse.jetty.http.HttpURI;
 import org.eclipse.jetty.http.HttpVersion;
 import org.eclipse.jetty.util.Fields;
 import org.eclipse.jetty.util.NanoTime;
@@ -122,9 +123,7 @@ public class HttpRequest implements Request
     {
         if (newURI == null)
         {
-            StringBuilder builder = new StringBuilder(64);
-            URIUtil.appendSchemeHostPort(builder, getScheme(), getHost(), getPort());
-            newURI = URI.create(builder.toString());
+            newURI = HttpURI.from(getScheme(), getHost(), getPort(), null).toURI();
         }
 
         HttpRequest newRequest = copyInstance(newURI);
@@ -184,7 +183,7 @@ public class HttpRequest implements Request
     @Override
     public Request scheme(String scheme)
     {
-        this.scheme = scheme;
+        this.scheme = URIUtil.normalizeScheme(scheme);
         this.uri = null;
         return this;
     }
diff --git a/jetty-core/jetty-client/src/test/java/org/eclipse/jetty/client/HttpClientURITest.java b/jetty-core/jetty-client/src/test/java/org/eclipse/jetty/client/HttpClientURITest.java
index 0a328e6cd87..13089955a7e 100644
--- a/jetty-core/jetty-client/src/test/java/org/eclipse/jetty/client/HttpClientURITest.java
+++ b/jetty-core/jetty-client/src/test/java/org/eclipse/jetty/client/HttpClientURITest.java
@@ -32,13 +32,13 @@ import org.eclipse.jetty.http.HttpField;
 import org.eclipse.jetty.http.HttpHeader;
 import org.eclipse.jetty.http.HttpMethod;
 import org.eclipse.jetty.http.HttpStatus;
+import org.eclipse.jetty.http.HttpURI;
 import org.eclipse.jetty.http.UriCompliance;
 import org.eclipse.jetty.server.HttpConfiguration;
 import org.eclipse.jetty.server.Response;
 import org.eclipse.jetty.toolchain.test.Net;
 import org.eclipse.jetty.util.Fields;
 import org.eclipse.jetty.util.StringUtil;
-import org.eclipse.jetty.util.URIUtil;
 import org.junit.jupiter.api.Assumptions;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ArgumentsSource;
@@ -68,9 +68,8 @@ public class HttpClientURITest extends AbstractHttpClientServerTest
             .timeout(5, TimeUnit.SECONDS);
 
         assertEquals(host, request.getHost());
-        StringBuilder uri = new StringBuilder();
-        URIUtil.appendSchemeHostPort(uri, scenario.getScheme(), host, connector.getLocalPort());
-        assertEquals(uri.toString(), request.getURI().toString());
+        HttpURI httpURI = HttpURI.from(scenario.getScheme(), host, connector.getLocalPort(), null);
+        assertEquals(httpURI.asString(), request.getURI().toString());
 
         assertEquals(HttpStatus.OK_200, request.send().getStatus());
     }
diff --git a/jetty-core/jetty-deploy/src/test/java/org/eclipse/jetty/deploy/test/XmlConfiguredJetty.java b/jetty-core/jetty-deploy/src/test/java/org/eclipse/jetty/deploy/test/XmlConfiguredJetty.java
index 69bea424aa5..50d88bcc2aa 100644
--- a/jetty-core/jetty-deploy/src/test/java/org/eclipse/jetty/deploy/test/XmlConfiguredJetty.java
+++ b/jetty-core/jetty-deploy/src/test/java/org/eclipse/jetty/deploy/test/XmlConfiguredJetty.java
@@ -35,6 +35,7 @@ import java.util.Properties;
 import java.util.stream.Collectors;
 
 import org.eclipse.jetty.http.HttpScheme;
+import org.eclipse.jetty.http.HttpURI;
 import org.eclipse.jetty.server.Connector;
 import org.eclipse.jetty.server.Handler;
 import org.eclipse.jetty.server.NetworkConnector;
@@ -249,9 +250,7 @@ public class XmlConfiguredJetty
 
     public URI getServerURI() throws UnknownHostException
     {
-        StringBuilder uri = new StringBuilder();
-        URIUtil.appendSchemeHostPort(uri, getScheme(), InetAddress.getLocalHost().getHostAddress(), getServerPort());
-        return URI.create(uri.toString());
+        return HttpURI.from(getScheme(), InetAddress.getLocalHost().getHostAddress(), getServerPort(), null).toURI();
     }
 
     public Path getJettyBasePath()
@@ -332,7 +331,7 @@ public class XmlConfiguredJetty
 
     public void setScheme(String scheme)
     {
-        this._scheme = scheme;
+        this._scheme = URIUtil.normalizeScheme(scheme);
     }
 
     public void start() throws Exception
diff --git a/jetty-core/jetty-fcgi/jetty-fcgi-proxy/src/main/java/org/eclipse/jetty/fcgi/proxy/FastCGIProxyHandler.java b/jetty-core/jetty-fcgi/jetty-fcgi-proxy/src/main/java/org/eclipse/jetty/fcgi/proxy/FastCGIProxyHandler.java
index e893b54ab14..5c5d2f88ce7 100644
--- a/jetty-core/jetty-fcgi/jetty-fcgi-proxy/src/main/java/org/eclipse/jetty/fcgi/proxy/FastCGIProxyHandler.java
+++ b/jetty-core/jetty-fcgi/jetty-fcgi-proxy/src/main/java/org/eclipse/jetty/fcgi/proxy/FastCGIProxyHandler.java
@@ -38,6 +38,7 @@ import org.eclipse.jetty.server.Request;
 import org.eclipse.jetty.server.Response;
 import org.eclipse.jetty.server.handler.TryPathsHandler;
 import org.eclipse.jetty.util.Callback;
+import org.eclipse.jetty.util.URIUtil;
 import org.eclipse.jetty.util.thread.QueuedThreadPool;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -317,7 +318,7 @@ public class FastCGIProxyHandler extends ProxyHandler.Reverse
         // If the Host header is missing, add it.
         if (!proxyToServerRequest.getHeaders().contains(HttpHeader.HOST))
         {
-            if (serverPort != HttpScheme.getDefaultPort(scheme))
+            if (serverPort != URIUtil.getDefaultPortForScheme(scheme))
                 serverName += ":" + serverPort;
             String host = serverName;
             proxyToServerRequest.headers(headers -> headers
diff --git a/jetty-core/jetty-http/src/main/java/org/eclipse/jetty/http/HttpScheme.java b/jetty-core/jetty-http/src/main/java/org/eclipse/jetty/http/HttpScheme.java
index 8505cfb15e4..77dbb18b349 100644
--- a/jetty-core/jetty-http/src/main/java/org/eclipse/jetty/http/HttpScheme.java
+++ b/jetty-core/jetty-http/src/main/java/org/eclipse/jetty/http/HttpScheme.java
@@ -17,16 +17,17 @@ import java.nio.ByteBuffer;
 
 import org.eclipse.jetty.util.BufferUtil;
 import org.eclipse.jetty.util.Index;
+import org.eclipse.jetty.util.URIUtil;
 
 /**
  * HTTP and WebSocket Schemes
  */
 public enum HttpScheme
 {
-    HTTP("http", 80),
-    HTTPS("https", 443),
-    WS("ws", 80),
-    WSS("wss", 443);
+    HTTP("http"),
+    HTTPS("https"),
+    WS("ws"),
+    WSS("wss");
 
     public static final Index<HttpScheme> CACHE = new Index.Builder<HttpScheme>()
         .caseSensitive(false)
@@ -37,11 +38,11 @@ public enum HttpScheme
     private final ByteBuffer _buffer;
     private final int _defaultPort;
 
-    HttpScheme(String s, int port)
+    HttpScheme(String s)
     {
         _string = s;
         _buffer = BufferUtil.toBuffer(s);
-        _defaultPort = port;
+        _defaultPort = URIUtil.getDefaultPortForScheme(s);
     }
 
     public ByteBuffer asByteBuffer()
@@ -75,16 +76,29 @@ public enum HttpScheme
         return _string;
     }
 
+    /**
+     * Get the default port for a URI scheme
+     * @param scheme The scheme
+     * @return Default port for URI scheme
+     * @deprecated Use {@link URIUtil#getDefaultPortForScheme(String)}
+     */
+    @Deprecated
     public static int getDefaultPort(String scheme)
     {
-        HttpScheme httpScheme = scheme == null ? null : CACHE.get(scheme);
-        return httpScheme == null ? HTTP.getDefaultPort() : httpScheme.getDefaultPort();
+        return URIUtil.getDefaultPortForScheme(scheme);
     }
 
+    /**
+     * Normalize a port for a URI scheme
+     * @param scheme the scheme
+     * @param port the port to normalize
+     * @return The normalized port
+     * @deprecated Use {@link URIUtil#normalizePortForScheme(String, int)}
+     */
+    @Deprecated
     public static int normalizePort(String scheme, int port)
     {
-        HttpScheme httpScheme = scheme == null ? null : CACHE.get(scheme);
-        return httpScheme == null ? port : httpScheme.normalizePort(port);
+        return URIUtil.normalizePortForScheme(scheme, port);
     }
 
     public static boolean isSecure(String scheme)
diff --git a/jetty-core/jetty-http/src/main/java/org/eclipse/jetty/http/HttpURI.java b/jetty-core/jetty-http/src/main/java/org/eclipse/jetty/http/HttpURI.java
index aa8d827d331..57b45226527 100644
--- a/jetty-core/jetty-http/src/main/java/org/eclipse/jetty/http/HttpURI.java
+++ b/jetty-core/jetty-http/src/main/java/org/eclipse/jetty/http/HttpURI.java
@@ -151,6 +151,11 @@ public interface HttpURI
         return new Mutable(scheme, host, port, pathQuery).asImmutable();
     }
 
+    static Immutable from(String scheme, String host, int port, String path, String query, String fragment)
+    {
+        return new Immutable(scheme, host, port, path, query, fragment);
+    }
+
     Immutable asImmutable();
 
     String asString();
@@ -302,18 +307,19 @@ public interface HttpURI
                 _violations = Collections.unmodifiableSet(EnumSet.copyOf(builder._violations));
         }
 
-        private Immutable(String uri)
+        private Immutable(String scheme, String host, int port, String path, String query, String fragment)
         {
-            _scheme = null;
+            _uri = null;
+
+            _scheme = URIUtil.normalizeScheme(scheme);
             _user = null;
-            _host = null;
-            _port = -1;
-            _path = uri;
+            _host = host;
+            _port = port;
+            _path = path;
+            _canonicalPath = _path == null ? null : URIUtil.canonicalPath(_path);
             _param = null;
-            _query = null;
-            _fragment = null;
-            _uri = uri;
-            _canonicalPath = null;
+            _query = query;
+            _fragment = fragment;
         }
 
         @Override
@@ -340,19 +346,26 @@ public interface HttpURI
                     out.append(_host);
                 }
 
-                if (_port > 0)
-                    out.append(':').append(_port);
+                int normalizedPort = URIUtil.normalizePortForScheme(_scheme, _port);
+                if (normalizedPort > 0)
+                    out.append(':').append(normalizedPort);
+
+                // we output even if the input is an empty string (to match java URI / URL behaviors)
+                boolean hasQuery = _query != null;
+                boolean hasFragment = _fragment != null;
 
                 if (_path != null)
                     out.append(_path);
+                else if (hasQuery || hasFragment)
+                    out.append('/');
 
-                if (_query != null)
+                if (hasQuery)
                     out.append('?').append(_query);
 
-                if (_fragment != null)
+                if (hasFragment)
                     out.append('#').append(_fragment);
 
-                if (out.length() > 0)
+                if (!out.isEmpty())
                     _uri = out.toString();
                 else
                     _uri = "";
@@ -504,7 +517,7 @@ public interface HttpURI
         {
             try
             {
-                return new URI(_scheme, null, _host, _port, _path, _query == null ? null : UrlEncoded.decodeString(_query), _fragment);
+                return new URI(_scheme, null, _host, URIUtil.normalizePortForScheme(_scheme, _port), _path, _query == null ? null : UrlEncoded.decodeString(_query), _fragment);
             }
             catch (URISyntaxException x)
             {
@@ -616,7 +629,7 @@ public interface HttpURI
         {
             _uri = null;
 
-            _scheme = uri.getScheme();
+            _scheme = URIUtil.normalizeScheme(uri.getScheme());
             _host = uri.getHost();
             if (_host == null && uri.getRawSchemeSpecificPart().startsWith("//"))
                 _host = "";
@@ -631,13 +644,9 @@ public interface HttpURI
 
         private Mutable(String scheme, String host, int port, String pathQuery)
         {
-            // TODO review if this should be here
-            if (port == HttpScheme.getDefaultPort(scheme))
-                port = 0;
-
             _uri = null;
 
-            _scheme = scheme;
+            _scheme = URIUtil.normalizeScheme(scheme);
             _host = host;
             _port = port;
 
@@ -960,7 +969,7 @@ public interface HttpURI
 
         public Mutable scheme(String scheme)
         {
-            _scheme = scheme;
+            _scheme = URIUtil.normalizeScheme(scheme);
             _uri = null;
             return this;
         }
@@ -1122,7 +1131,7 @@ public interface HttpURI
                         {
                             case ':':
                                 // must have been a scheme
-                                _scheme = uri.substring(mark, i);
+                                _scheme = URIUtil.normalizeScheme(uri.substring(mark, i));
                                 // Start again with scheme set
                                 state = State.START;
                                 break;
diff --git a/jetty-core/jetty-http/src/test/java/org/eclipse/jetty/http/HttpURITest.java b/jetty-core/jetty-http/src/test/java/org/eclipse/jetty/http/HttpURITest.java
index 5579dcd4ef4..aa54abe7a6a 100644
--- a/jetty-core/jetty-http/src/test/java/org/eclipse/jetty/http/HttpURITest.java
+++ b/jetty-core/jetty-http/src/test/java/org/eclipse/jetty/http/HttpURITest.java
@@ -940,4 +940,141 @@ public class HttpURITest
     {
         assertThat(UriCompliance.from(UriCompliance.DEFAULT.getName()), sameInstance(UriCompliance.DEFAULT));
     }
+
+    public static Stream<Arguments> concatNormalizedURIShortCases()
+    {
+        return Stream.of(
+            // Default behaviors of stripping a port number based on scheme
+            Arguments.of("http", "example.org", 80, "http://example.org"),
+            Arguments.of("https", "example.org", 443, "https://example.org"),
+            Arguments.of("ws", "example.org", 80, "ws://example.org"),
+            Arguments.of("wss", "example.org", 443, "wss://example.org"),
+            // Mismatches between scheme and port
+            Arguments.of("http", "example.org", 443, "http://example.org:443"),
+            Arguments.of("https", "example.org", 80, "https://example.org:80"),
+            Arguments.of("ws", "example.org", 443, "ws://example.org:443"),
+            Arguments.of("wss", "example.org", 80, "wss://example.org:80"),
+            // Odd ports
+            Arguments.of("http", "example.org", 12345, "http://example.org:12345"),
+            Arguments.of("https", "example.org", 54321, "https://example.org:54321"),
+            Arguments.of("ws", "example.org", 6666, "ws://example.org:6666"),
+            Arguments.of("wss", "example.org", 7777, "wss://example.org:7777"),
+            // Non-lowercase Schemes
+            Arguments.of("HTTP", "example.org", 8181, "http://example.org:8181"),
+            Arguments.of("hTTps", "example.org", 443, "https://example.org"),
+            Arguments.of("WS", "example.org", 8282, "ws://example.org:8282"),
+            Arguments.of("wsS", "example.org", 8383, "wss://example.org:8383"),
+            // Undefined Ports
+            Arguments.of("http", "example.org", 0, "http://example.org"),
+            Arguments.of("https", "example.org", -1, "https://example.org"),
+            Arguments.of("ws", "example.org", -80, "ws://example.org"),
+            Arguments.of("wss", "example.org", -2, "wss://example.org"),
+            // Unrecognized (non-http) schemes
+            Arguments.of("foo", "example.org", 0, "foo://example.org"),
+            Arguments.of("ssh", "example.org", 22, "ssh://example.org"),
+            Arguments.of("ftp", "example.org", 21, "ftp://example.org"),
+            Arguments.of("ssh", "example.org", 2222, "ssh://example.org:2222"),
+            Arguments.of("ftp", "example.org", 2121, "ftp://example.org:2121"),
+            Arguments.of("file", "etc", -1, "file://etc")
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("concatNormalizedURIShortCases")
+    public void testFromShortAsStringNormalized(String scheme, String server, int port, String expectedStr)
+    {
+        HttpURI httpURI = HttpURI.from(scheme, server, port, null);
+        assertThat(httpURI.asString(), is(expectedStr));
+    }
+
+    public static Stream<Arguments> concatNormalizedURICases()
+    {
+        return Stream.of(
+            // Default behaviors of stripping a port number based on scheme
+            Arguments.of("http", "example.org", 80, "/", null, null, "http://example.org/"),
+            Arguments.of("https", "example.org", 443, "/", null, null, "https://example.org/"),
+            Arguments.of("ws", "example.org", 80, "/", null, null, "ws://example.org/"),
+            Arguments.of("wss", "example.org", 443, "/", null, null, "wss://example.org/"),
+            // Mismatches between scheme and port
+            Arguments.of("http", "example.org", 443, "/", null, null, "http://example.org:443/"),
+            Arguments.of("https", "example.org", 80, "/", null, null, "https://example.org:80/"),
+            Arguments.of("ws", "example.org", 443, "/", null, null, "ws://example.org:443/"),
+            Arguments.of("wss", "example.org", 80, "/", null, null, "wss://example.org:80/"),
+            // Odd ports
+            Arguments.of("http", "example.org", 12345, "/", null, null, "http://example.org:12345/"),
+            Arguments.of("https", "example.org", 54321, "/", null, null, "https://example.org:54321/"),
+            Arguments.of("ws", "example.org", 6666, "/", null, null, "ws://example.org:6666/"),
+            Arguments.of("wss", "example.org", 7777, "/", null, null, "wss://example.org:7777/"),
+            // Non-lowercase Schemes
+            Arguments.of("HTTP", "example.org", 8181, "/", null, null, "http://example.org:8181/"),
+            Arguments.of("hTTps", "example.org", 443, "/", null, null, "https://example.org/"),
+            Arguments.of("WS", "example.org", 8282, "/", null, null, "ws://example.org:8282/"),
+            Arguments.of("wsS", "example.org", 8383, "/", null, null, "wss://example.org:8383/"),
+            // Undefined Ports
+            Arguments.of("http", "example.org", 0, "/", null, null, "http://example.org/"),
+            Arguments.of("https", "example.org", -1, "/", null, null, "https://example.org/"),
+            Arguments.of("ws", "example.org", -80, "/", null, null, "ws://example.org/"),
+            Arguments.of("wss", "example.org", -2, "/", null, null, "wss://example.org/"),
+            // Unrecognized (non-http) schemes
+            Arguments.of("foo", "example.org", 0, "/", null, null, "foo://example.org/"),
+            Arguments.of("ssh", "example.org", 22, "/", null, null, "ssh://example.org/"),
+            Arguments.of("ftp", "example.org", 21, "/", null, null, "ftp://example.org/"),
+            Arguments.of("ssh", "example.org", 2222, "/", null, null, "ssh://example.org:2222/"),
+            Arguments.of("ftp", "example.org", 2121, "/", null, null, "ftp://example.org:2121/"),
+            // Path choices
+            Arguments.of("http", "example.org", 0, "/a/b/c/d", null, null, "http://example.org/a/b/c/d"),
+            Arguments.of("http", "example.org", 0, "/a%20b/c%20d", null, null, "http://example.org/a%20b/c%20d"),
+            // Query specified
+            Arguments.of("http", "example.org", 0, "/", "a=b", null, "http://example.org/?a=b"),
+            Arguments.of("http", "example.org", 0, "/documentation/latest/", "a=b", null, "http://example.org/documentation/latest/?a=b"),
+            Arguments.of("http", "example.org", 0, null, "a=b", null, "http://example.org/?a=b"),
+            Arguments.of("http", "example.org", 0, null, "", null, "http://example.org/?"),
+            // Fragment specified
+            Arguments.of("http", "example.org", 0, "/", null, "", "http://example.org/#"),
+            Arguments.of("http", "example.org", 0, "/", null, "toc", "http://example.org/#toc"),
+            Arguments.of("http", "example.org", 0, null, null, "toc", "http://example.org/#toc"),
+            // Empty query & fragment - behavior matches java URI and URL
+            Arguments.of("http", "example.org", 0, null, "", "", "http://example.org/?#")
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("concatNormalizedURICases")
+    public void testFromAsStringNormalized(String scheme, String server, int port, String path, String query, String fragment, String expectedStr)
+    {
+        HttpURI httpURI = HttpURI.from(scheme, server, port, path, query, fragment);
+        assertThat(httpURI.asString(), is(expectedStr));
+    }
+
+    /**
+     * Tests of parameters that result in undesired behaviors.
+     * {@link HttpURI#from(String, String, int, String)}
+     */
+    public static Stream<Arguments> fromBad()
+    {
+        return Stream.of(
+            // bad schemes
+            Arguments.of(null, "example.org", 0, "//example.org"),
+            Arguments.of("", "example.org", 0, "://example.org"),
+            Arguments.of("\t", "example.org", 0, "\t://example.org"),
+            Arguments.of("    ", "example.org", 0, "    ://example.org"),
+            // bad ports
+            Arguments.of("http", "example.org", 1_000_000, "http://example.org:1000000"),
+            // bad ports
+            Arguments.of("ws", "example.org", -222333, "ws://example.org"), // negative port same as -1, i.e. not set.
+            // bad servers
+            Arguments.of("http", null, 0, "http:"),
+            Arguments.of("http", "", 0, "http://"),
+            Arguments.of("http", "\t", 0, "http://\t"),
+            Arguments.of("http", "    ", 0, "http://    ")
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("fromBad")
+    public void testFromBad(String scheme, String server, int port, String expectedStr)
+    {
+        HttpURI httpURI = HttpURI.from(scheme, server, port, null);
+        assertThat(httpURI.asString(), is(expectedStr));
+    }
 }
diff --git a/jetty-core/jetty-openid/src/main/java/org/eclipse/jetty/security/openid/OpenIdAuthenticator.java b/jetty-core/jetty-openid/src/main/java/org/eclipse/jetty/security/openid/OpenIdAuthenticator.java
index d175e537ddb..16fab5da110 100644
--- a/jetty-core/jetty-openid/src/main/java/org/eclipse/jetty/security/openid/OpenIdAuthenticator.java
+++ b/jetty-core/jetty-openid/src/main/java/org/eclipse/jetty/security/openid/OpenIdAuthenticator.java
@@ -672,8 +672,7 @@ public class OpenIdAuthenticator extends LoginAuthenticator
 
     private String getRedirectUri(Request request)
     {
-        final StringBuffer redirectUri = new StringBuffer(128);
-        URIUtil.appendSchemeHostPort(redirectUri, request.getHttpURI().getScheme(),
+        final StringBuilder redirectUri = URIUtil.newURIBuilder(request.getHttpURI().getScheme(),
             Request.getServerName(request), Request.getServerPort(request));
         redirectUri.append(URIUtil.addPaths(request.getContext().getContextPath(), _redirectPath));
         return redirectUri.toString();
diff --git a/jetty-core/jetty-rewrite/src/main/java/org/eclipse/jetty/rewrite/handler/ForwardedSchemeHeaderRule.java b/jetty-core/jetty-rewrite/src/main/java/org/eclipse/jetty/rewrite/handler/ForwardedSchemeHeaderRule.java
index 4194a42735d..54d7f8a3987 100644
--- a/jetty-core/jetty-rewrite/src/main/java/org/eclipse/jetty/rewrite/handler/ForwardedSchemeHeaderRule.java
+++ b/jetty-core/jetty-rewrite/src/main/java/org/eclipse/jetty/rewrite/handler/ForwardedSchemeHeaderRule.java
@@ -14,6 +14,7 @@
 package org.eclipse.jetty.rewrite.handler;
 
 import org.eclipse.jetty.http.HttpURI;
+import org.eclipse.jetty.util.URIUtil;
 
 /**
  * <p>Sets the request URI scheme, by default {@code https}.</p>
@@ -29,7 +30,7 @@ public class ForwardedSchemeHeaderRule extends HeaderRule
 
     public void setScheme(String scheme)
     {
-        _scheme = scheme;
+        _scheme = URIUtil.normalizeScheme(scheme);
     }
 
     @Override
diff --git a/jetty-core/jetty-security/src/test/java/org/eclipse/jetty/security/SecurityHandlerTest.java b/jetty-core/jetty-security/src/test/java/org/eclipse/jetty/security/SecurityHandlerTest.java
index aabdc981f4e..22dbf23a5a4 100644
--- a/jetty-core/jetty-security/src/test/java/org/eclipse/jetty/security/SecurityHandlerTest.java
+++ b/jetty-core/jetty-security/src/test/java/org/eclipse/jetty/security/SecurityHandlerTest.java
@@ -134,7 +134,7 @@ public class SecurityHandlerTest
 
         response = _connector.getResponse("GET /ctx/confidential/info HTTP/1.0\r\n\r\n");
         assertThat(response, containsString("HTTP/1.1 302 Found"));
-        assertThat(response, containsString("Location: BWTP://"));
+        assertThat(response, containsString("Location: bwtp://"));
         assertThat(response, containsString(":9999"));
         assertThat(response, not(containsString("OK")));
 
@@ -161,7 +161,7 @@ public class SecurityHandlerTest
 
         response = _connector.getResponse("GET /ctx/confidential/info HTTP/1.0\r\n\r\n");
         assertThat(response, containsString("HTTP/1.1 302 Found"));
-        assertThat(response, containsString("Location: BWTP://"));
+        assertThat(response, containsString("Location: bwtp://"));
         assertThat(response, containsString(":9999"));
         assertThat(response, not(containsString("OK")));
 
diff --git a/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/HostHeaderCustomizer.java b/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/HostHeaderCustomizer.java
index 4c1fdab0276..d55b0bb0022 100644
--- a/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/HostHeaderCustomizer.java
+++ b/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/HostHeaderCustomizer.java
@@ -16,9 +16,9 @@ package org.eclipse.jetty.server;
 import org.eclipse.jetty.http.HostPortHttpField;
 import org.eclipse.jetty.http.HttpFields;
 import org.eclipse.jetty.http.HttpHeader;
-import org.eclipse.jetty.http.HttpScheme;
 import org.eclipse.jetty.http.HttpURI;
 import org.eclipse.jetty.http.HttpVersion;
+import org.eclipse.jetty.util.URIUtil;
 
 /**
  * Adds a missing {@code Host} header (for example, HTTP 1.0 or 2.0 requests).
@@ -58,7 +58,7 @@ public class HostHeaderCustomizer implements HttpConfiguration.Customizer
             return request;
 
         String host = serverName == null ? Request.getServerName(request) : serverName;
-        int port = HttpScheme.normalizePort(request.getHttpURI().getScheme(), serverPort == 0 ? Request.getServerPort(request) : serverPort);
+        int port = URIUtil.normalizePortForScheme(request.getHttpURI().getScheme(), serverPort == 0 ? Request.getServerPort(request) : serverPort);
 
         HttpURI uri = (serverName != null || serverPort > 0)
             ? HttpURI.build(request.getHttpURI()).authority(host, port).asImmutable()
diff --git a/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/HttpConfiguration.java b/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/HttpConfiguration.java
index 0812943338c..69d9396470e 100644
--- a/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/HttpConfiguration.java
+++ b/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/HttpConfiguration.java
@@ -32,6 +32,7 @@ import org.eclipse.jetty.http.UriCompliance;
 import org.eclipse.jetty.util.HostPort;
 import org.eclipse.jetty.util.Index;
 import org.eclipse.jetty.util.Jetty;
+import org.eclipse.jetty.util.URIUtil;
 import org.eclipse.jetty.util.annotation.ManagedAttribute;
 import org.eclipse.jetty.util.annotation.ManagedObject;
 import org.eclipse.jetty.util.component.Dumpable;
@@ -476,7 +477,7 @@ public class HttpConfiguration implements Dumpable
      */
     public void setSecureScheme(String secureScheme)
     {
-        _secureScheme = secureScheme;
+        _secureScheme = URIUtil.normalizeScheme(secureScheme);
     }
 
     /**
diff --git a/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/Response.java b/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/Response.java
index d83973dd555..4e8b26a322a 100644
--- a/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/Response.java
+++ b/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/Response.java
@@ -356,10 +356,7 @@ public interface Response extends Content.Sink
             if (!request.getConnectionMetaData().getHttpConfiguration().isRelativeRedirectAllowed())
             {
                 // make the location an absolute URI
-                StringBuilder url = new StringBuilder(128);
-                URIUtil.appendSchemeHostPort(url, uri.getScheme(), Request.getServerName(request), Request.getServerPort(request));
-                url.append(location);
-                location = url.toString();
+                location = URIUtil.newURI(uri.getScheme(), Request.getServerName(request), Request.getServerPort(request), location, null);
             }
         }
         return location;
diff --git a/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/internal/HttpConnection.java b/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/internal/HttpConnection.java
index 1d938ee8f6f..ac189270bd6 100644
--- a/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/internal/HttpConnection.java
+++ b/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/internal/HttpConnection.java
@@ -70,6 +70,7 @@ import org.eclipse.jetty.util.HostPort;
 import org.eclipse.jetty.util.IteratingCallback;
 import org.eclipse.jetty.util.StringUtil;
 import org.eclipse.jetty.util.TypeUtil;
+import org.eclipse.jetty.util.URIUtil;
 import org.eclipse.jetty.util.thread.Invocable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -1218,7 +1219,7 @@ public class HttpConnection extends AbstractMetaDataConnection implements Runnab
             {
                 HostPort hostPort = _hostField == null ? getServerAuthority() : _hostField.getHostPort();
                 int port = hostPort.getPort();
-                if (port == HttpScheme.getDefaultPort(_uri.getScheme()))
+                if (port == URIUtil.getDefaultPortForScheme(_uri.getScheme()))
                     port = -1;
                 _uri.authority(hostPort.getHost(), port);
             }
diff --git a/jetty-core/jetty-session/src/main/java/org/eclipse/jetty/session/AbstractSessionManager.java b/jetty-core/jetty-session/src/main/java/org/eclipse/jetty/session/AbstractSessionManager.java
index 09b30e721b0..9ceac663f0d 100644
--- a/jetty-core/jetty-session/src/main/java/org/eclipse/jetty/session/AbstractSessionManager.java
+++ b/jetty-core/jetty-session/src/main/java/org/eclipse/jetty/session/AbstractSessionManager.java
@@ -666,7 +666,10 @@ public abstract class AbstractSessionManager extends ContainerLifeCycle implemen
             path = (path == null ? "" : path);
             int port = httpURI.getPort();
             if (port < 0)
-                port = HttpScheme.getDefaultPort(httpURI.getScheme());
+            {
+                String scheme = httpURI.getScheme();
+                port = URIUtil.getDefaultPortForScheme(scheme);
+            }
 
             // Is it the same server?
             if (!Request.getServerName(request).equalsIgnoreCase(httpURI.getHost()))
diff --git a/jetty-core/jetty-util/src/main/java/org/eclipse/jetty/util/URIUtil.java b/jetty-core/jetty-util/src/main/java/org/eclipse/jetty/util/URIUtil.java
index 658655e2a1b..f663a228569 100644
--- a/jetty-core/jetty-util/src/main/java/org/eclipse/jetty/util/URIUtil.java
+++ b/jetty-core/jetty-util/src/main/java/org/eclipse/jetty/util/URIUtil.java
@@ -1359,6 +1359,19 @@ public final class URIUtil
         return true;
     }
 
+    /**
+     * Create a new URI from the arguments, handling IPv6 host encoding and default ports
+     *
+     * @param scheme the URI scheme
+     * @param server the URI server
+     * @param port the URI port
+     * @return A String URI
+     */
+    public static String newURI(String scheme, String server, int port)
+    {
+        return newURI(scheme, server, port, null, null);
+    }
+
     /**
      * Create a new URI from the arguments, handling IPv6 host encoding and default ports
      *
@@ -1370,11 +1383,36 @@ public final class URIUtil
      * @return A String URI
      */
     public static String newURI(String scheme, String server, int port, String path, String query)
+    {
+        return newURI(scheme, server, port, path, query, null);
+    }
+
+    /**
+     * Create a new URI from the arguments, handling IPv6 host encoding and default ports
+     *
+     * @param scheme the URI scheme
+     * @param server the URI server
+     * @param port the URI port
+     * @param path the URI path
+     * @param query the URI query
+     * @param fragment the URI fragment
+     * @return A String URI
+     */
+    public static String newURI(String scheme, String server, int port, String path, String query, String fragment)
     {
         StringBuilder builder = newURIBuilder(scheme, server, port);
-        builder.append(path);
-        if (query != null && query.length() > 0)
+        // check only for null, as empty query/fragment have meaning.
+        // this also matches the behavior of java URL & URI
+        boolean hasQuery = query != null;
+        boolean hasFragment = fragment != null;
+        if (StringUtil.isNotBlank(path))
+            builder.append(path);
+        else if (hasQuery || hasFragment)
+            builder.append('/');
+        if (hasQuery)
             builder.append('?').append(query);
+        if (hasFragment)
+            builder.append('#').append(fragment);
         return builder.toString();
     }
 
@@ -1388,7 +1426,7 @@ public final class URIUtil
      */
     public static StringBuilder newURIBuilder(String scheme, String server, int port)
     {
-        StringBuilder builder = new StringBuilder();
+        StringBuilder builder = new StringBuilder(128);
         appendSchemeHostPort(builder, scheme, server, port);
         return builder;
     }
@@ -1403,28 +1441,11 @@ public final class URIUtil
      */
     public static void appendSchemeHostPort(StringBuilder url, String scheme, String server, int port)
     {
+        scheme = normalizeScheme(scheme);
         url.append(scheme).append("://").append(HostPort.normalizeHost(server));
-
+        port = normalizePortForScheme(scheme, port);
         if (port > 0)
-        {
-            switch (scheme)
-            {
-                case "ws":
-                case "http":
-                    if (port != 80)
-                        url.append(':').append(port);
-                    break;
-
-                case "wss":
-                case "https":
-                    if (port != 443)
-                        url.append(':').append(port);
-                    break;
-
-                default:
-                    url.append(':').append(port);
-            }
-        }
+            url.append(':').append(port);
     }
 
     /**
@@ -1434,31 +1455,16 @@ public final class URIUtil
      * @param scheme the URI scheme
      * @param server the URI server
      * @param port the URI port
+     * @deprecated Use {@link #appendSchemeHostPort(StringBuilder, String, String, int)}
      */
+    @Deprecated
     public static void appendSchemeHostPort(StringBuffer url, String scheme, String server, int port)
     {
+        scheme = normalizeScheme(scheme);
         url.append(scheme).append("://").append(HostPort.normalizeHost(server));
-
+        port = normalizePortForScheme(scheme, port);
         if (port > 0)
-        {
-            switch (scheme)
-            {
-                    case "ws":
-                case "http":
-                    if (port != 80)
-                        url.append(':').append(port);
-                    break;
-
-                    case "wss":
-                case "https":
-                    if (port != 443)
-                        url.append(':').append(port);
-                    break;
-
-                default:
-                    url.append(':').append(port);
-            }
-        }
+            url.append(':').append(port);
     }
 
     /**
@@ -1925,4 +1931,52 @@ public final class URIUtil
             .map(URIUtil::unwrapContainer)
             .map(URIUtil::correctFileURI);
     }
+
+    private static final Index<Integer> DEFAULT_PORT_FOR_SCHEME = new Index.Builder<Integer>()
+        .caseSensitive(false)
+        .with("ftp", 21)
+        .with("ssh", 22)
+        .with("telnet", 23)
+        .with("smtp", 25)
+        .with("http", 80)
+        .with("ws", 80)
+        .with("https", 443)
+        .with("wss", 443)
+        .build();
+
+    /**
+     * Get the default port for some well known schemes
+     * @param scheme The scheme
+     * @return The default port or -1 if not known
+     */
+    public static int getDefaultPortForScheme(String scheme)
+    {
+        if (scheme == null)
+            return -1;
+        Integer port = DEFAULT_PORT_FOR_SCHEME.get(scheme);
+        return port == null ? -1 : port;
+    }
+
+    /**
+     * Normalize the scheme
+     * @param scheme The scheme to normalize
+     * @return The normalized version of the scheme
+     */
+    public static String normalizeScheme(String scheme)
+    {
+        return scheme == null ? null : StringUtil.asciiToLowerCase(scheme);
+    }
+
+    /**
+     * Normalize a port for a given scheme
+     * @param scheme The scheme
+     * @param port The port to normalize
+     * @return The port number or 0 if provided port was less than 0 or was equal to the default port for the scheme
+     */
+    public static int normalizePortForScheme(String scheme, int port)
+    {
+        if (port <= 0)
+            return 0;
+        return port == getDefaultPortForScheme(scheme) ? 0 : port;
+    }
 }
diff --git a/jetty-core/jetty-util/src/test/java/org/eclipse/jetty/util/URIUtilTest.java b/jetty-core/jetty-util/src/test/java/org/eclipse/jetty/util/URIUtilTest.java
index 416b2f6e228..16a6e55e448 100644
--- a/jetty-core/jetty-util/src/test/java/org/eclipse/jetty/util/URIUtilTest.java
+++ b/jetty-core/jetty-util/src/test/java/org/eclipse/jetty/util/URIUtilTest.java
@@ -34,6 +34,7 @@ import org.junit.jupiter.api.condition.OS;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.CsvSource;
 import org.junit.jupiter.params.provider.MethodSource;
 import org.junit.jupiter.params.provider.ValueSource;
 
@@ -47,6 +48,7 @@ import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assumptions.assumeTrue;
 
 /**
  * URIUtil Tests.
@@ -1186,7 +1188,7 @@ public class URIUtilTest
         assertThat(uris, contains(expected));
     }
 
-    public static Stream<Arguments> appendSchemeHostPortCases()
+    public static Stream<Arguments> schemeHostPortShortCases()
     {
         return Stream.of(
             // Default behaviors of stripping a port number based on scheme
@@ -1203,12 +1205,29 @@ public class URIUtilTest
             Arguments.of("http", "example.org", 12345, "http://example.org:12345"),
             Arguments.of("https", "example.org", 54321, "https://example.org:54321"),
             Arguments.of("ws", "example.org", 6666, "ws://example.org:6666"),
-            Arguments.of("wss", "example.org", 7777, "wss://example.org:7777")
+            Arguments.of("wss", "example.org", 7777, "wss://example.org:7777"),
+            // Non-lowercase Schemes
+            Arguments.of("HTTP", "example.org", 8181, "http://example.org:8181"),
+            Arguments.of("hTTps", "example.org", 443, "https://example.org"),
+            Arguments.of("WS", "example.org", 8282, "ws://example.org:8282"),
+            Arguments.of("wsS", "example.org", 8383, "wss://example.org:8383"),
+            // Undefined Ports
+            Arguments.of("http", "example.org", 0, "http://example.org"),
+            Arguments.of("https", "example.org", -1, "https://example.org"),
+            Arguments.of("ws", "example.org", -80, "ws://example.org"),
+            Arguments.of("wss", "example.org", -2, "wss://example.org"),
+            // Unrecognized (non-http) schemes
+            Arguments.of("foo", "example.org", 0, "foo://example.org"),
+            Arguments.of("ssh", "example.org", 22, "ssh://example.org"),
+            Arguments.of("ftp", "example.org", 21, "ftp://example.org"),
+            Arguments.of("ssh", "example.org", 2222, "ssh://example.org:2222"),
+            Arguments.of("ftp", "example.org", 2121, "ftp://example.org:2121"),
+            Arguments.of("file", "etc", -1, "file://etc")
         );
     }
 
     @ParameterizedTest
-    @MethodSource("appendSchemeHostPortCases")
+    @MethodSource("schemeHostPortShortCases")
     public void testAppendSchemeHostPortBuilder(String scheme, String server, int port, String expectedStr)
     {
         StringBuilder actual = new StringBuilder();
@@ -1217,11 +1236,211 @@ public class URIUtilTest
     }
 
     @ParameterizedTest
-    @MethodSource("appendSchemeHostPortCases")
+    @MethodSource("schemeHostPortShortCases")
     public void testAppendSchemeHostPortBuffer(String scheme, String server, int port, String expectedStr)
     {
         StringBuffer actual = new StringBuffer();
         URIUtil.appendSchemeHostPort(actual, scheme, server, port);
         assertEquals(expectedStr, actual.toString());
     }
+
+    public static List<Arguments> getNewURICases()
+    {
+        List<Arguments> cases = new ArrayList<>();
+
+        cases.addAll(List.of(
+            // Default behaviors of stripping a port number based on scheme
+            // Query specified
+            Arguments.of("http", "example.org", 0, "/", "a=b", null, "http://example.org/?a=b"),
+            Arguments.of("http", "example.org", 0, "/documentation/latest/", "a=b", null, "http://example.org/documentation/latest/?a=b"),
+            Arguments.of("http", "example.org", 0, null, "a=b", null, "http://example.org/?a=b"),
+            Arguments.of("http", "example.org", 0, null, "", null, "http://example.org/?")
+        ));
+        return cases;
+    }
+
+    public static List<Arguments> schemeHostPortCases()
+    {
+        return List.of(
+            // Default behaviors of stripping a port number based on scheme
+            Arguments.of("http", "example.org", 80, "http://example.org"),
+            Arguments.of("https", "example.org", 443, "https://example.org"),
+            Arguments.of("ws", "example.org", 80, "ws://example.org"),
+            Arguments.of("wss", "example.org", 443, "wss://example.org"),
+            // Mismatches between scheme and port
+            Arguments.of("http", "example.org", 443, "http://example.org:443"),
+            Arguments.of("https", "example.org", 80, "https://example.org:80"),
+            Arguments.of("ws", "example.org", 443, "ws://example.org:443"),
+            Arguments.of("wss", "example.org", 80, "wss://example.org:80"),
+            // Odd ports
+            Arguments.of("http", "example.org", 12345, "http://example.org:12345"),
+            Arguments.of("https", "example.org", 54321, "https://example.org:54321"),
+            Arguments.of("ws", "example.org", 6666, "ws://example.org:6666"),
+            Arguments.of("wss", "example.org", 7777, "wss://example.org:7777"),
+            // Non-lowercase Schemes
+            Arguments.of("HTTP", "example.org", 8181, "http://example.org:8181"),
+            Arguments.of("hTTps", "example.org", 443, "https://example.org"),
+            Arguments.of("WS", "example.org", 8282, "ws://example.org:8282"),
+            Arguments.of("wsS", "example.org", 8383, "wss://example.org:8383"),
+            // Undefined Ports
+            Arguments.of("http", "example.org", 0, "http://example.org"),
+            Arguments.of("https", "example.org", -1, "https://example.org"),
+            Arguments.of("ws", "example.org", -80, "ws://example.org"),
+            Arguments.of("wss", "example.org", -2, "wss://example.org"),
+            // Unrecognized (non-http) schemes
+            Arguments.of("foo", "example.org", 0, "foo://example.org"),
+            Arguments.of("ssh", "example.org", 22, "ssh://example.org"),
+            Arguments.of("ftp", "example.org", 21, "ftp://example.org"),
+            Arguments.of("ssh", "example.org", 2222, "ssh://example.org:2222"),
+            Arguments.of("ftp", "example.org", 2121, "ftp://example.org:2121")
+        );
+    }
+
+    public static List<Arguments> schemeHostPortPathCases()
+    {
+        List<Arguments> cases = new ArrayList<>();
+
+        cases.addAll(List.of(
+            // Default behaviors of stripping a port number based on scheme
+            Arguments.of("http", "example.org", 80, "/", null, null, "http://example.org/"),
+            Arguments.of("https", "example.org", 443, "/", null, null, "https://example.org/"),
+            Arguments.of("ws", "example.org", 80, "/", null, null, "ws://example.org/"),
+            Arguments.of("wss", "example.org", 443, "/", null, null, "wss://example.org/"),
+            // Mismatches between scheme and port
+            Arguments.of("http", "example.org", 443, "/", null, null, "http://example.org:443/"),
+            Arguments.of("https", "example.org", 80, "/", null, null, "https://example.org:80/"),
+            Arguments.of("ws", "example.org", 443, "/", null, null, "ws://example.org:443/"),
+            Arguments.of("wss", "example.org", 80, "/", null, null, "wss://example.org:80/"),
+            // Odd ports
+            Arguments.of("http", "example.org", 12345, "/", null, null, "http://example.org:12345/"),
+            Arguments.of("https", "example.org", 54321, "/", null, null, "https://example.org:54321/"),
+            Arguments.of("ws", "example.org", 6666, "/", null, null, "ws://example.org:6666/"),
+            Arguments.of("wss", "example.org", 7777, "/", null, null, "wss://example.org:7777/"),
+            // Non-lowercase Schemes
+            Arguments.of("HTTP", "example.org", 8181, "/", null, null, "http://example.org:8181/"),
+            Arguments.of("hTTps", "example.org", 443, "/", null, null, "https://example.org/"),
+            Arguments.of("WS", "example.org", 8282, "/", null, null, "ws://example.org:8282/"),
+            Arguments.of("wsS", "example.org", 8383, "/", null, null, "wss://example.org:8383/"),
+            // Undefined Ports
+            Arguments.of("http", "example.org", 0, "/", null, null, "http://example.org/"),
+            Arguments.of("https", "example.org", -1, "/", null, null, "https://example.org/"),
+            Arguments.of("ws", "example.org", -80, "/", null, null, "ws://example.org/"),
+            Arguments.of("wss", "example.org", -2, "/", null, null, "wss://example.org/"),
+            // Unrecognized (non-http) schemes
+            Arguments.of("foo", "example.org", 0, "/", null, null, "foo://example.org/"),
+            Arguments.of("ssh", "example.org", 22, "/", null, null, "ssh://example.org/"),
+            Arguments.of("ftp", "example.org", 21, "/", null, null, "ftp://example.org/"),
+            Arguments.of("ssh", "example.org", 2222, "/", null, null, "ssh://example.org:2222/"),
+            Arguments.of("ftp", "example.org", 2121, "/", null, null, "ftp://example.org:2121/"),
+            // Path choices
+            Arguments.of("http", "example.org", 0, "/a/b/c/d", null, null, "http://example.org/a/b/c/d"),
+            Arguments.of("http", "example.org", 0, "/a%20b/c%20d", null, null, "http://example.org/a%20b/c%20d"),
+            // Query specified
+            Arguments.of("http", "example.org", 0, "/", "a=b", null, "http://example.org/?a=b"),
+            Arguments.of("http", "example.org", 0, "/documentation/latest/", "a=b", null, "http://example.org/documentation/latest/?a=b"),
+            Arguments.of("http", "example.org", 0, null, "a=b", null, "http://example.org/?a=b"),
+            Arguments.of("http", "example.org", 0, null, "", null, "http://example.org/?")
+        ));
+        return cases;
+    }
+
+    public static List<Arguments> schemeHostPortFragmentCases()
+    {
+        List<Arguments> cases = new ArrayList<>();
+        cases.addAll(schemeHostPortPathCases());
+
+        cases.addAll(List.of(
+            // Fragment specified
+            Arguments.of("http", "example.org", 0, "/", null, "", "http://example.org/#"),
+            Arguments.of("http", "example.org", 0, "/", null, "toc", "http://example.org/#toc"),
+            Arguments.of("http", "example.org", 0, null, null, "toc", "http://example.org/#toc"),
+            // Empty query & fragment - behavior matches java URI and URL
+            Arguments.of("http", "example.org", 0, null, "", "", "http://example.org/?#")
+        ));
+
+        return cases;
+    }
+
+    @ParameterizedTest
+    @MethodSource("schemeHostPortCases")
+    public void testNewURIShort(String scheme, String server, int port, String expectedStr)
+    {
+        String actual = URIUtil.newURI(scheme, server, port);
+        assertEquals(expectedStr, actual.toString());
+    }
+
+    @ParameterizedTest
+    @MethodSource("schemeHostPortPathCases")
+    public void testNewURI(String scheme, String server, int port, String path, String query, String fragment, String expectedStr)
+    {
+        assumeTrue(StringUtil.isBlank(fragment), "Skip tests with fragments, as this newURI doesn't have them");
+        String actual = URIUtil.newURI(scheme, server, port, path, query);
+        assertEquals(expectedStr, actual.toString());
+    }
+
+    @ParameterizedTest
+    @MethodSource("schemeHostPortFragmentCases")
+    public void testNewURIFragment(String scheme, String server, int port, String path, String query, String fragment, String expectedStr)
+    {
+        String actual = URIUtil.newURI(scheme, server, port, path, query, fragment);
+        assertEquals(expectedStr, actual.toString());
+    }
+
+    @ParameterizedTest
+    @CsvSource(value = {
+        "http,80",
+        "https,443",
+        "ws,80",
+        "wss,443",
+        "ssh,22",
+        "file,-1",
+        "bundle,-1",
+        "HTTP,80",
+        "HttPs,443",
+        "http+ssl,-1"
+    })
+    public void testGetDefaultPortForScheme(String scheme, int expectedPort)
+    {
+        int actual = URIUtil.getDefaultPortForScheme(scheme);
+        assertEquals(expectedPort, actual);
+    }
+
+    @ParameterizedTest
+    @CsvSource(value = {
+        "http,80,0",
+        "https,443,0",
+        "https,8443,8443",
+        "ws,80,0",
+        "ws,9999,9999",
+        "wss,443,0",
+        "wss,-1,0",
+        "wss,0,0",
+        "ssh,22,0",
+        "file,-1,0",
+        "bundle,-1,0",
+        "HTTP,80,0",
+        "HttPs,443,0",
+        "http+ssl,-1,0"
+    })
+    public void testNormalizePortForScheme(String scheme, int port, int expectedPort)
+    {
+        int actual = URIUtil.normalizePortForScheme(scheme, port);
+        assertEquals(expectedPort, actual);
+    }
+
+    @ParameterizedTest
+    @CsvSource(value = {
+        "http,http",
+        "https,https",
+        "HTTP,http",
+        "WSS,wss",
+        "WS,ws",
+        "XRTP,xrtp",
+        "Https,https"
+    })
+    public void testNormalizeScheme(String input, String expected)
+    {
+        String actual = URIUtil.normalizeScheme(input);
+        assertThat(actual, is(expected));
+    }
 }
diff --git a/jetty-core/jetty-websocket/jetty-websocket-core-tests/src/test/java/org/eclipse/jetty/websocket/core/WebSocketCloseTest.java b/jetty-core/jetty-websocket/jetty-websocket-core-tests/src/test/java/org/eclipse/jetty/websocket/core/WebSocketCloseTest.java
index 66608a7dcd7..d2d1550c60d 100644
--- a/jetty-core/jetty-websocket/jetty-websocket-core-tests/src/test/java/org/eclipse/jetty/websocket/core/WebSocketCloseTest.java
+++ b/jetty-core/jetty-websocket/jetty-websocket-core-tests/src/test/java/org/eclipse/jetty/websocket/core/WebSocketCloseTest.java
@@ -26,6 +26,7 @@ import org.eclipse.jetty.logging.StacklessLogging;
 import org.eclipse.jetty.util.BlockingArrayQueue;
 import org.eclipse.jetty.util.BufferUtil;
 import org.eclipse.jetty.util.Callback;
+import org.eclipse.jetty.util.URIUtil;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
@@ -77,7 +78,7 @@ public class WebSocketCloseTest extends WebSocketTester
     public void setup(State state, String scheme) throws Exception
     {
         boolean tls;
-        switch (scheme)
+        switch (URIUtil.normalizeScheme(scheme))
         {
             case "ws":
                 tls = false;
diff --git a/jetty-core/jetty-websocket/jetty-websocket-jetty-api/src/main/java/org/eclipse/jetty/websocket/api/util/WSURI.java b/jetty-core/jetty-websocket/jetty-websocket-jetty-api/src/main/java/org/eclipse/jetty/websocket/api/util/WSURI.java
index 5c372bccdf1..eaac42232bc 100644
--- a/jetty-core/jetty-websocket/jetty-websocket-jetty-api/src/main/java/org/eclipse/jetty/websocket/api/util/WSURI.java
+++ b/jetty-core/jetty-websocket/jetty-websocket-jetty-api/src/main/java/org/eclipse/jetty/websocket/api/util/WSURI.java
@@ -102,17 +102,17 @@ public final class WSURI
     public static URI toWebsocket(final URI inputUri) throws URISyntaxException
     {
         Objects.requireNonNull(inputUri, "Input URI must not be null");
-        String httpScheme = inputUri.getScheme();
-        if (httpScheme == null)
+        String scheme = inputUri.getScheme();
+        if (scheme == null)
             throw new URISyntaxException(inputUri.toString(), "Undefined HTTP scheme");
 
-        if ("ws".equalsIgnoreCase(httpScheme) || "wss".equalsIgnoreCase(httpScheme))
+        if ("ws".equalsIgnoreCase(scheme) || "wss".equalsIgnoreCase(scheme))
             return inputUri;
 
-        String afterScheme = inputUri.toString().substring(httpScheme.length());
-        if ("http".equalsIgnoreCase(httpScheme))
+        String afterScheme = inputUri.toString().substring(scheme.length());
+        if ("http".equalsIgnoreCase(scheme))
             return new URI("ws" + afterScheme);
-        if ("https".equalsIgnoreCase(httpScheme))
+        if ("https".equalsIgnoreCase(scheme))
             return new URI("wss" + afterScheme);
 
         throw new URISyntaxException(inputUri.toString(), "Unrecognized HTTP scheme");
diff --git a/jetty-ee10/jetty-ee10-fcgi-proxy/src/main/java/org/eclipse/jetty/ee10/fcgi/proxy/FastCGIProxyServlet.java b/jetty-ee10/jetty-ee10-fcgi-proxy/src/main/java/org/eclipse/jetty/ee10/fcgi/proxy/FastCGIProxyServlet.java
index 47cd4e5683a..3a22a0974b2 100644
--- a/jetty-ee10/jetty-ee10-fcgi-proxy/src/main/java/org/eclipse/jetty/ee10/fcgi/proxy/FastCGIProxyServlet.java
+++ b/jetty-ee10/jetty-ee10-fcgi-proxy/src/main/java/org/eclipse/jetty/ee10/fcgi/proxy/FastCGIProxyServlet.java
@@ -40,6 +40,7 @@ import org.eclipse.jetty.http.HttpHeader;
 import org.eclipse.jetty.http.HttpScheme;
 import org.eclipse.jetty.io.ClientConnector;
 import org.eclipse.jetty.util.ProcessorUtils;
+import org.eclipse.jetty.util.URIUtil;
 
 /**
  * Specific implementation of {@link org.eclipse.jetty.ee10.proxy.AsyncProxyServlet.Transparent} for FastCGI.
@@ -195,7 +196,7 @@ public class FastCGIProxyServlet extends AsyncProxyServlet.Transparent
         {
             String server = request.getServerName();
             int port = request.getServerPort();
-            if (port != HttpScheme.getDefaultPort(request.getScheme()))
+            if (port != URIUtil.getDefaultPortForScheme(request.getScheme()))
                 server += ":" + port;
             String host = server;
             proxyRequest.headers(headers -> headers
diff --git a/jetty-ee10/jetty-ee10-servlet/src/main/java/org/eclipse/jetty/ee10/servlet/ServletApiRequest.java b/jetty-ee10/jetty-ee10-servlet/src/main/java/org/eclipse/jetty/ee10/servlet/ServletApiRequest.java
index 540e3cbf22c..28a6facd63e 100644
--- a/jetty-ee10/jetty-ee10-servlet/src/main/java/org/eclipse/jetty/ee10/servlet/ServletApiRequest.java
+++ b/jetty-ee10/jetty-ee10-servlet/src/main/java/org/eclipse/jetty/ee10/servlet/ServletApiRequest.java
@@ -65,7 +65,6 @@ import org.eclipse.jetty.http.HttpException;
 import org.eclipse.jetty.http.HttpField;
 import org.eclipse.jetty.http.HttpFields;
 import org.eclipse.jetty.http.HttpHeader;
-import org.eclipse.jetty.http.HttpScheme;
 import org.eclipse.jetty.http.HttpStatus;
 import org.eclipse.jetty.http.HttpURI;
 import org.eclipse.jetty.http.HttpVersion;
@@ -1017,7 +1016,7 @@ public class ServletApiRequest implements HttpServletRequest
 
         // If no port specified, return the default port for the scheme
         if (port <= 0)
-            return HttpScheme.getDefaultPort(getScheme());
+            return URIUtil.getDefaultPortForScheme(getScheme());
 
         // return a specific port
         return port;
diff --git a/jetty-ee10/jetty-ee10-servlet/src/test/java/org/eclipse/jetty/ee10/servlet/DispatcherTest.java b/jetty-ee10/jetty-ee10-servlet/src/test/java/org/eclipse/jetty/ee10/servlet/DispatcherTest.java
index 07dcfbb1eca..abb74a365af 100644
--- a/jetty-ee10/jetty-ee10-servlet/src/test/java/org/eclipse/jetty/ee10/servlet/DispatcherTest.java
+++ b/jetty-ee10/jetty-ee10-servlet/src/test/java/org/eclipse/jetty/ee10/servlet/DispatcherTest.java
@@ -35,9 +35,7 @@ import jakarta.servlet.ServletContext;
 import jakarta.servlet.ServletException;
 import jakarta.servlet.ServletOutputStream;
 import jakarta.servlet.ServletRequest;
-import jakarta.servlet.ServletRequestWrapper;
 import jakarta.servlet.ServletResponse;
-import jakarta.servlet.ServletResponseWrapper;
 import jakarta.servlet.WriteListener;
 import jakarta.servlet.http.HttpServlet;
 import jakarta.servlet.http.HttpServletMapping;
@@ -1519,7 +1517,7 @@ public class DispatcherTest
             assertEquals("/context/AssertForwardServlet", request.getRequestURI());
             assertEquals("/context", request.getContextPath());
             assertEquals("/AssertForwardServlet", request.getServletPath());
-            assertEquals("http://local:80/context/AssertForwardServlet", request.getRequestURL().toString());
+            assertEquals("http://local/context/AssertForwardServlet", request.getRequestURL().toString());
 
             response.setContentType("text/html");
             response.setStatus(HttpServletResponse.SC_OK);
diff --git a/jetty-ee10/jetty-ee10-servlet/src/test/java/org/eclipse/jetty/ee10/servlet/ErrorPageTest.java b/jetty-ee10/jetty-ee10-servlet/src/test/java/org/eclipse/jetty/ee10/servlet/ErrorPageTest.java
index 28e97c319aa..c1b3d8234d8 100644
--- a/jetty-ee10/jetty-ee10-servlet/src/test/java/org/eclipse/jetty/ee10/servlet/ErrorPageTest.java
+++ b/jetty-ee10/jetty-ee10-servlet/src/test/java/org/eclipse/jetty/ee10/servlet/ErrorPageTest.java
@@ -679,7 +679,7 @@ public class ErrorPageTest
         assertThat(responseBody, Matchers.containsString("ERROR_SERVLET: " + failServlet.getClass().getName()));
         assertThat(responseBody, Matchers.containsString("ERROR_REQUEST_URI: /fail/599"));
         assertThat(responseBody, Matchers.containsString("getQueryString()=[code=param]"));
-        assertThat(responseBody, Matchers.containsString("getRequestURL()=[http://test:80/error/599?code=param]"));
+        assertThat(responseBody, Matchers.containsString("getRequestURL()=[http://test/error/599?code=param]"));
         assertThat(responseBody, Matchers.containsString("getParameterMap().size=2"));
         assertThat(responseBody, Matchers.containsString("getParameterMap()[code]=[param]"));
         assertThat(responseBody, Matchers.containsString("getParameterMap()[value]=[zed]"));
diff --git a/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-integration/src/test/java/org/eclipse/jetty/ee10/test/support/XmlBasedJettyServer.java b/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-integration/src/test/java/org/eclipse/jetty/ee10/test/support/XmlBasedJettyServer.java
index eba7c59f1d8..56fa13ab8aa 100644
--- a/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-integration/src/test/java/org/eclipse/jetty/ee10/test/support/XmlBasedJettyServer.java
+++ b/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-integration/src/test/java/org/eclipse/jetty/ee10/test/support/XmlBasedJettyServer.java
@@ -29,6 +29,7 @@ import org.eclipse.jetty.http.HttpScheme;
 import org.eclipse.jetty.server.NetworkConnector;
 import org.eclipse.jetty.server.Server;
 import org.eclipse.jetty.toolchain.test.MavenTestingUtils;
+import org.eclipse.jetty.util.URIUtil;
 import org.eclipse.jetty.util.resource.Resource;
 import org.eclipse.jetty.util.resource.ResourceFactory;
 import org.eclipse.jetty.xml.XmlConfiguration;
@@ -168,7 +169,7 @@ public class XmlBasedJettyServer
 
     public void setScheme(String scheme)
     {
-        this._scheme = scheme;
+        this._scheme = URIUtil.normalizeScheme(scheme);
     }
 
     public void start() throws Exception
@@ -196,11 +197,7 @@ public class XmlBasedJettyServer
 
     public URI getServerURI()
     {
-        StringBuffer uri = new StringBuffer();
-        uri.append(this._scheme).append("://");
-        uri.append(InetAddress.getLoopbackAddress().getHostAddress());
-        uri.append(":").append(this._serverPort);
-        return URI.create(uri.toString());
+        return URI.create(URIUtil.newURI(_scheme, InetAddress.getLoopbackAddress().getHostAddress(), _serverPort));
     }
 
     public Server getServer()
diff --git a/jetty-ee9/jetty-ee9-fcgi-proxy/src/main/java/org/eclipse/jetty/ee9/fcgi/proxy/FastCGIProxyServlet.java b/jetty-ee9/jetty-ee9-fcgi-proxy/src/main/java/org/eclipse/jetty/ee9/fcgi/proxy/FastCGIProxyServlet.java
index 8f59797fa66..2f15cbf1005 100644
--- a/jetty-ee9/jetty-ee9-fcgi-proxy/src/main/java/org/eclipse/jetty/ee9/fcgi/proxy/FastCGIProxyServlet.java
+++ b/jetty-ee9/jetty-ee9-fcgi-proxy/src/main/java/org/eclipse/jetty/ee9/fcgi/proxy/FastCGIProxyServlet.java
@@ -40,6 +40,7 @@ import org.eclipse.jetty.http.HttpHeader;
 import org.eclipse.jetty.http.HttpScheme;
 import org.eclipse.jetty.io.ClientConnector;
 import org.eclipse.jetty.util.ProcessorUtils;
+import org.eclipse.jetty.util.URIUtil;
 
 /**
  * Specific implementation of {@link org.eclipse.jetty.ee9.proxy.AsyncProxyServlet.Transparent} for FastCGI.
@@ -195,7 +196,8 @@ public class FastCGIProxyServlet extends AsyncProxyServlet.Transparent
         {
             String server = request.getServerName();
             int port = request.getServerPort();
-            if (port != HttpScheme.getDefaultPort(request.getScheme()))
+            String scheme = request.getScheme();
+            if (port != URIUtil.getDefaultPortForScheme(scheme))
                 server += ":" + port;
             String host = server;
             proxyRequest.headers(headers -> headers
diff --git a/jetty-ee9/jetty-ee9-nested/src/main/java/org/eclipse/jetty/ee9/nested/Request.java b/jetty-ee9/jetty-ee9-nested/src/main/java/org/eclipse/jetty/ee9/nested/Request.java
index f9bbcf90cf5..62b53a49974 100644
--- a/jetty-ee9/jetty-ee9-nested/src/main/java/org/eclipse/jetty/ee9/nested/Request.java
+++ b/jetty-ee9/jetty-ee9-nested/src/main/java/org/eclipse/jetty/ee9/nested/Request.java
@@ -1177,9 +1177,7 @@ public class Request implements HttpServletRequest
      */
     public StringBuilder getRootURL()
     {
-        StringBuilder url = new StringBuilder(128);
-        URIUtil.appendSchemeHostPort(url, getScheme(), getServerName(), getServerPort());
-        return url;
+        return new StringBuilder(HttpURI.from(getScheme(), getServerName(), getServerPort(), null).asString());
     }
 
     @Override
diff --git a/jetty-ee9/jetty-ee9-nested/src/main/java/org/eclipse/jetty/ee9/nested/Response.java b/jetty-ee9/jetty-ee9-nested/src/main/java/org/eclipse/jetty/ee9/nested/Response.java
index eb9265cbc2e..0a5e2788fef 100644
--- a/jetty-ee9/jetty-ee9-nested/src/main/java/org/eclipse/jetty/ee9/nested/Response.java
+++ b/jetty-ee9/jetty-ee9-nested/src/main/java/org/eclipse/jetty/ee9/nested/Response.java
@@ -347,7 +347,7 @@ public class Response implements HttpServletResponse
             path = (path == null ? "" : path);
             int port = uri.getPort();
             if (port < 0)
-                port = HttpScheme.getDefaultPort(uri.getScheme());
+                port = URIUtil.getDefaultPortForScheme(uri.getScheme());
 
             // Is it the same server?
             if (!request.getServerName().equalsIgnoreCase(uri.getHost()))
diff --git a/jetty-ee9/jetty-ee9-nested/src/main/java/org/eclipse/jetty/ee9/nested/SecuredRedirectHandler.java b/jetty-ee9/jetty-ee9-nested/src/main/java/org/eclipse/jetty/ee9/nested/SecuredRedirectHandler.java
index 58165db65c3..668d0ef1f68 100644
--- a/jetty-ee9/jetty-ee9-nested/src/main/java/org/eclipse/jetty/ee9/nested/SecuredRedirectHandler.java
+++ b/jetty-ee9/jetty-ee9-nested/src/main/java/org/eclipse/jetty/ee9/nested/SecuredRedirectHandler.java
@@ -81,9 +81,9 @@ public class SecuredRedirectHandler extends HandlerWrapper
         if (securePort > 0)
         {
             String secureScheme = httpConfig.getSecureScheme();
-            String url = URIUtil.newURI(secureScheme, baseRequest.getServerName(), securePort, baseRequest.getRequestURI(), baseRequest.getQueryString());
+            String uri = URIUtil.newURI(secureScheme, baseRequest.getServerName(), securePort, baseRequest.getRequestURI(), baseRequest.getQueryString());
             response.setContentLength(0);
-            baseRequest.getResponse().sendRedirect(_redirectCode, url, true);
+            baseRequest.getResponse().sendRedirect(_redirectCode, uri, true);
         }
         else
         {
diff --git a/jetty-ee9/jetty-ee9-openid/src/main/java/org/eclipse/jetty/ee9/security/openid/OpenIdAuthenticator.java b/jetty-ee9/jetty-ee9-openid/src/main/java/org/eclipse/jetty/ee9/security/openid/OpenIdAuthenticator.java
index 1037b24d008..97c4be36c1d 100644
--- a/jetty-ee9/jetty-ee9-openid/src/main/java/org/eclipse/jetty/ee9/security/openid/OpenIdAuthenticator.java
+++ b/jetty-ee9/jetty-ee9-openid/src/main/java/org/eclipse/jetty/ee9/security/openid/OpenIdAuthenticator.java
@@ -292,8 +292,7 @@ public class OpenIdAuthenticator extends LoginAuthenticator
             String redirectUri = null;
             if (_logoutRedirectPath != null)
             {
-                StringBuilder sb = new StringBuilder(128);
-                URIUtil.appendSchemeHostPort(sb, request.getScheme(), request.getServerName(), request.getServerPort());
+                StringBuilder sb = URIUtil.newURIBuilder(request.getScheme(), request.getServerName(), request.getServerPort());
                 sb.append(baseRequest.getContextPath());
                 sb.append(_logoutRedirectPath);
                 redirectUri = sb.toString();
@@ -614,8 +613,7 @@ public class OpenIdAuthenticator extends LoginAuthenticator
 
     private String getRedirectUri(HttpServletRequest request)
     {
-        final StringBuffer redirectUri = new StringBuffer(128);
-        URIUtil.appendSchemeHostPort(redirectUri, request.getScheme(),
+        final StringBuilder redirectUri = URIUtil.newURIBuilder(request.getScheme(),
             request.getServerName(), request.getServerPort());
         redirectUri.append(request.getContextPath());
         redirectUri.append(_redirectPath);
diff --git a/jetty-ee9/jetty-ee9-proxy/src/test/java/org/eclipse/jetty/ee9/proxy/ProxyServletTest.java b/jetty-ee9/jetty-ee9-proxy/src/test/java/org/eclipse/jetty/ee9/proxy/ProxyServletTest.java
index 08ccb0e8ae3..f1d5513df29 100644
--- a/jetty-ee9/jetty-ee9-proxy/src/test/java/org/eclipse/jetty/ee9/proxy/ProxyServletTest.java
+++ b/jetty-ee9/jetty-ee9-proxy/src/test/java/org/eclipse/jetty/ee9/proxy/ProxyServletTest.java
@@ -89,6 +89,7 @@ import org.eclipse.jetty.toolchain.test.MavenTestingUtils;
 import org.eclipse.jetty.util.Callback;
 import org.eclipse.jetty.util.IO;
 import org.eclipse.jetty.util.StringUtil;
+import org.eclipse.jetty.util.URIUtil;
 import org.eclipse.jetty.util.ssl.SslContextFactory;
 import org.eclipse.jetty.util.thread.QueuedThreadPool;
 import org.junit.jupiter.api.AfterEach;
@@ -841,7 +842,7 @@ public class ProxyServletTest
         int serverPort = serverConnector.getLocalPort();
         if (HttpScheme.HTTPS.is(scheme))
             serverPort = tlsServerConnector.getLocalPort();
-        String proxyTo = scheme + "://localhost:" + serverPort;
+        String proxyTo = URIUtil.normalizeScheme(scheme) + "://localhost:" + serverPort;
         Map<String, String> params = new HashMap<>();
         params.put("proxyTo", proxyTo);
         params.put("prefix", prefix);
diff --git a/jetty-ee9/jetty-ee9-security/src/test/java/org/eclipse/jetty/ee9/security/DataConstraintsTest.java b/jetty-ee9/jetty-ee9-security/src/test/java/org/eclipse/jetty/ee9/security/DataConstraintsTest.java
index fc91bc105ba..0909d0dce24 100644
--- a/jetty-ee9/jetty-ee9-security/src/test/java/org/eclipse/jetty/ee9/security/DataConstraintsTest.java
+++ b/jetty-ee9/jetty-ee9-security/src/test/java/org/eclipse/jetty/ee9/security/DataConstraintsTest.java
@@ -138,7 +138,7 @@ public class DataConstraintsTest
 
         response = _connector.getResponse("GET /ctx/integral/info HTTP/1.0\r\n\r\n");
         assertThat(response, Matchers.containsString("HTTP/1.1 302 Found"));
-        assertThat(response, Matchers.containsString("Location: BWTP://"));
+        assertThat(response, Matchers.containsString("Location: bwtp://"));
         assertThat(response, Matchers.containsString(":9999"));
 
         response = _connectorS.getResponse("GET /ctx/integral/info HTTP/1.0\r\n\r\n");
@@ -166,7 +166,7 @@ public class DataConstraintsTest
 
         response = _connector.getResponse("GET /ctx/confid/info HTTP/1.0\r\n\r\n");
         assertThat(response, Matchers.containsString("HTTP/1.1 302 Found"));
-        assertThat(response, Matchers.containsString("Location: BWTP://"));
+        assertThat(response, Matchers.containsString("Location: bwtp://"));
         assertThat(response, Matchers.containsString(":9999"));
 
         response = _connectorS.getResponse("GET /ctx/confid/info HTTP/1.0\r\n\r\n");
diff --git a/jetty-ee9/jetty-ee9-tests/jetty-ee9-test-integration/src/test/java/org/eclipse/jetty/ee9/test/support/XmlBasedJettyServer.java b/jetty-ee9/jetty-ee9-tests/jetty-ee9-test-integration/src/test/java/org/eclipse/jetty/ee9/test/support/XmlBasedJettyServer.java
index 9fa29cd1364..78608b6c4a6 100644
--- a/jetty-ee9/jetty-ee9-tests/jetty-ee9-test-integration/src/test/java/org/eclipse/jetty/ee9/test/support/XmlBasedJettyServer.java
+++ b/jetty-ee9/jetty-ee9-tests/jetty-ee9-test-integration/src/test/java/org/eclipse/jetty/ee9/test/support/XmlBasedJettyServer.java
@@ -13,7 +13,6 @@
 
 package org.eclipse.jetty.ee9.test.support;
 
-import java.io.File;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.net.InetAddress;
@@ -30,6 +29,7 @@ import org.eclipse.jetty.http.HttpScheme;
 import org.eclipse.jetty.server.NetworkConnector;
 import org.eclipse.jetty.server.Server;
 import org.eclipse.jetty.toolchain.test.MavenTestingUtils;
+import org.eclipse.jetty.util.URIUtil;
 import org.eclipse.jetty.util.resource.Resource;
 import org.eclipse.jetty.util.resource.ResourceFactory;
 import org.eclipse.jetty.xml.XmlConfiguration;
@@ -169,7 +169,7 @@ public class XmlBasedJettyServer
 
     public void setScheme(String scheme)
     {
-        this._scheme = scheme;
+        this._scheme = URIUtil.normalizeScheme(scheme);
     }
 
     public void start() throws Exception