diff --git a/jetty-http/src/main/java/org/eclipse/jetty/http/HttpTokens.java b/jetty-http/src/main/java/org/eclipse/jetty/http/HttpTokens.java
index 3d1fa984813..725722fd259 100644
--- a/jetty-http/src/main/java/org/eclipse/jetty/http/HttpTokens.java
+++ b/jetty-http/src/main/java/org/eclipse/jetty/http/HttpTokens.java
@@ -257,10 +257,9 @@ public class HttpTokens
                 return ' ';
 
             default:
-                if (c >= 256 || c < ' ')
+                if (isIllegalFieldVchar(c))
                     return '?';
         }
-
         return c;
     }
 
diff --git a/jetty-http/src/main/java/org/eclipse/jetty/http/MetaData.java b/jetty-http/src/main/java/org/eclipse/jetty/http/MetaData.java
index 2bd270829e2..bc7cc82998d 100644
--- a/jetty-http/src/main/java/org/eclipse/jetty/http/MetaData.java
+++ b/jetty-http/src/main/java/org/eclipse/jetty/http/MetaData.java
@@ -15,7 +15,6 @@ package org.eclipse.jetty.http;
 
 import java.util.Collections;
 import java.util.Iterator;
-import java.util.Objects;
 import java.util.function.Supplier;
 
 public class MetaData implements Iterable<HttpField>
@@ -101,28 +100,6 @@ public class MetaData implements Iterable<HttpField>
         return _fields.iterator();
     }
 
-    @Override
-    public int hashCode()
-    {
-        return Objects.hash(_httpVersion, _contentLength, _fields, _trailerSupplier);
-    }
-
-    @Override
-    public boolean equals(Object obj)
-    {
-        if (!(obj instanceof MetaData))
-            return false;
-
-        MetaData other = (MetaData)obj;
-        if (!Objects.equals(_httpVersion, other._httpVersion))
-            return false;
-        if (!Objects.equals(_contentLength, other._contentLength))
-            return false;
-        if (!Objects.equals(_fields, other._fields))
-            return false;
-        return _trailerSupplier == null && other._trailerSupplier == null;
-    }
-
     @Override
     public String toString()
     {
diff --git a/jetty-http/src/main/java/org/eclipse/jetty/http/compression/HuffmanDecoder.java b/jetty-http/src/main/java/org/eclipse/jetty/http/compression/HuffmanDecoder.java
index b03da0e171b..983e10a9847 100644
--- a/jetty-http/src/main/java/org/eclipse/jetty/http/compression/HuffmanDecoder.java
+++ b/jetty-http/src/main/java/org/eclipse/jetty/http/compression/HuffmanDecoder.java
@@ -29,7 +29,7 @@ import static org.eclipse.jetty.http.compression.Huffman.rowsym;
  */
 public class HuffmanDecoder
 {
-    private final CharsetStringBuilder.Iso8859StringBuilder _builder = new CharsetStringBuilder.Iso8859StringBuilder();
+    private final CharsetStringBuilder.Iso88591StringBuilder _builder = new CharsetStringBuilder.Iso88591StringBuilder();
     private int _length = 0;
     private int _count = 0;
     private int _node = 0;
diff --git a/jetty-http/src/main/java/org/eclipse/jetty/http/compression/HuffmanEncoder.java b/jetty-http/src/main/java/org/eclipse/jetty/http/compression/HuffmanEncoder.java
index c10e7d37f32..965f90ad017 100644
--- a/jetty-http/src/main/java/org/eclipse/jetty/http/compression/HuffmanEncoder.java
+++ b/jetty-http/src/main/java/org/eclipse/jetty/http/compression/HuffmanEncoder.java
@@ -69,7 +69,7 @@ public class HuffmanEncoder
      * @param s the string to encode in lowercase.
      * @return the number of octets needed to encode the string, or -1 if it cannot be encoded.
      */
-    public static int octetsNeededLowercase(String s)
+    public static int octetsNeededLowerCase(String s)
     {
         return octetsNeeded(LCCODES, s);
     }
@@ -78,7 +78,7 @@ public class HuffmanEncoder
      * @param buffer the buffer to encode into in lowercase.
      * @param s the string to encode.
      */
-    public static void encodeLowercase(ByteBuffer buffer, String s)
+    public static void encodeLowerCase(ByteBuffer buffer, String s)
     {
         encode(LCCODES, buffer, s);
     }
diff --git a/jetty-http/src/main/java/org/eclipse/jetty/http/compression/NBitStringParser.java b/jetty-http/src/main/java/org/eclipse/jetty/http/compression/NBitStringParser.java
index fadc45d0988..0f67df93364 100644
--- a/jetty-http/src/main/java/org/eclipse/jetty/http/compression/NBitStringParser.java
+++ b/jetty-http/src/main/java/org/eclipse/jetty/http/compression/NBitStringParser.java
@@ -31,7 +31,7 @@ public class NBitStringParser
 {
     private final NBitIntegerParser _integerParser;
     private final HuffmanDecoder _huffmanBuilder;
-    private final CharsetStringBuilder.Iso8859StringBuilder _builder;
+    private final CharsetStringBuilder.Iso88591StringBuilder _builder;
     private boolean _huffman;
     private int _count;
     private int _length;
@@ -50,7 +50,7 @@ public class NBitStringParser
     {
         _integerParser = new NBitIntegerParser();
         _huffmanBuilder = new HuffmanDecoder();
-        _builder = new CharsetStringBuilder.Iso8859StringBuilder();
+        _builder = new CharsetStringBuilder.Iso88591StringBuilder();
     }
 
     /**
diff --git a/jetty-http2/http2-hpack/src/main/java/org/eclipse/jetty/http2/hpack/HpackDecoder.java b/jetty-http2/http2-hpack/src/main/java/org/eclipse/jetty/http2/hpack/HpackDecoder.java
index d6982480d12..cee75446f15 100644
--- a/jetty-http2/http2-hpack/src/main/java/org/eclipse/jetty/http2/hpack/HpackDecoder.java
+++ b/jetty-http2/http2-hpack/src/main/java/org/eclipse/jetty/http2/hpack/HpackDecoder.java
@@ -173,7 +173,7 @@ public class HpackDecoder
                     if (huffmanName)
                         name = huffmanDecode(buffer, length);
                     else
-                        name = toISO8859String(buffer, length);
+                        name = toISO88591String(buffer, length);
                     check:
                     for (int i = name.length(); i-- > 0; )
                     {
@@ -213,7 +213,7 @@ public class HpackDecoder
                 if (huffmanValue)
                     value = huffmanDecode(buffer, length);
                 else
-                    value = toISO8859String(buffer, length);
+                    value = toISO88591String(buffer, length);
 
                 // Make the new field
                 HttpField field;
@@ -321,12 +321,12 @@ public class HpackDecoder
         }
     }
 
-    public static String toISO8859String(ByteBuffer buffer, int length)
+    public static String toISO88591String(ByteBuffer buffer, int length)
     {
-        CharsetStringBuilder.Iso8859StringBuilder builder = new CharsetStringBuilder.Iso8859StringBuilder();
+        CharsetStringBuilder.Iso88591StringBuilder builder = new CharsetStringBuilder.Iso88591StringBuilder();
         for (int i = 0; i < length; ++i)
         {
-            builder.append((char)(0x7F & buffer.get()));
+            builder.append(HttpTokens.sanitizeFieldVchar((char)buffer.get()));
         }
         return builder.build();
     }
diff --git a/jetty-http2/http2-hpack/src/main/java/org/eclipse/jetty/http2/hpack/HpackEncoder.java b/jetty-http2/http2-hpack/src/main/java/org/eclipse/jetty/http2/hpack/HpackEncoder.java
index 77b486a17f4..e84bdb4e367 100644
--- a/jetty-http2/http2-hpack/src/main/java/org/eclipse/jetty/http2/hpack/HpackEncoder.java
+++ b/jetty-http2/http2-hpack/src/main/java/org/eclipse/jetty/http2/hpack/HpackEncoder.java
@@ -441,8 +441,8 @@ public class HpackEncoder
             // leave name index bits as 0
             // Encode the name always with lowercase huffman
             buffer.put((byte)0x80);
-            NBitIntegerEncoder.encode(buffer, 7, HuffmanEncoder.octetsNeededLowercase(name));
-            HuffmanEncoder.encodeLowercase(buffer, name);
+            NBitIntegerEncoder.encode(buffer, 7, HuffmanEncoder.octetsNeededLowerCase(name));
+            HuffmanEncoder.encodeLowerCase(buffer, name);
         }
         else
         {
diff --git a/jetty-http2/http2-hpack/src/main/java/org/eclipse/jetty/http2/hpack/HpackFieldPreEncoder.java b/jetty-http2/http2-hpack/src/main/java/org/eclipse/jetty/http2/hpack/HpackFieldPreEncoder.java
index 3b924f0368b..d3e5f7fddde 100644
--- a/jetty-http2/http2-hpack/src/main/java/org/eclipse/jetty/http2/hpack/HpackFieldPreEncoder.java
+++ b/jetty-http2/http2-hpack/src/main/java/org/eclipse/jetty/http2/hpack/HpackFieldPreEncoder.java
@@ -73,8 +73,8 @@ public class HpackFieldPreEncoder implements HttpFieldPreEncoder
         else
         {
             buffer.put((byte)0x80);
-            NBitIntegerEncoder.encode(buffer, 7, HuffmanEncoder.octetsNeededLowercase(name));
-            HuffmanEncoder.encodeLowercase(buffer, name);
+            NBitIntegerEncoder.encode(buffer, 7, HuffmanEncoder.octetsNeededLowerCase(name));
+            HuffmanEncoder.encodeLowerCase(buffer, name);
         }
 
         HpackEncoder.encodeValue(buffer, huffman, value);
diff --git a/jetty-http3/http3-qpack/src/test/java/org/eclipse/jetty/http3/qpack/QpackTestUtil.java b/jetty-http3/http3-qpack/src/test/java/org/eclipse/jetty/http3/qpack/QpackTestUtil.java
index 5125867646b..04f699e8e1a 100644
--- a/jetty-http3/http3-qpack/src/test/java/org/eclipse/jetty/http3/qpack/QpackTestUtil.java
+++ b/jetty-http3/http3-qpack/src/test/java/org/eclipse/jetty/http3/qpack/QpackTestUtil.java
@@ -15,6 +15,7 @@ package org.eclipse.jetty.http3.qpack;
 
 import java.nio.ByteBuffer;
 import java.util.List;
+import java.util.Objects;
 
 import org.eclipse.jetty.http.HttpField;
 import org.eclipse.jetty.http.HttpFields;
@@ -127,4 +128,15 @@ public class QpackTestUtil
     {
         return new MetaData(HttpVersion.HTTP_3, fields);
     }
+
+    public static boolean compareMetaData(MetaData m1, MetaData m2)
+    {
+        if (!Objects.equals(m1.getHttpVersion(), m2.getHttpVersion()))
+            return false;
+        if (!Objects.equals(m1.getContentLength(), m2.getContentLength()))
+            return false;
+        if (!Objects.equals(m1.getFields(), m2.getFields()))
+            return false;
+        return m1.getTrailerSupplier() == null && m2.getTrailerSupplier() == null;
+    }
 }
diff --git a/jetty-util/src/main/java/org/eclipse/jetty/util/CharsetStringBuilder.java b/jetty-util/src/main/java/org/eclipse/jetty/util/CharsetStringBuilder.java
index 9aa2d783cd6..341f39fda07 100644
--- a/jetty-util/src/main/java/org/eclipse/jetty/util/CharsetStringBuilder.java
+++ b/jetty-util/src/main/java/org/eclipse/jetty/util/CharsetStringBuilder.java
@@ -79,7 +79,7 @@ public interface CharsetStringBuilder
     {
         Objects.requireNonNull(charset);
         if (charset == StandardCharsets.ISO_8859_1)
-            return new Iso8859StringBuilder();
+            return new Iso88591StringBuilder();
         if (charset == StandardCharsets.US_ASCII)
             return new UsAsciiStringBuilder();
 
@@ -87,7 +87,7 @@ public interface CharsetStringBuilder
         return new DecoderStringBuilder(charset.newDecoder());
     }
 
-    class Iso8859StringBuilder implements CharsetStringBuilder
+    class Iso88591StringBuilder implements CharsetStringBuilder
     {
         private final StringBuilder _builder = new StringBuilder();
 
@@ -275,5 +275,3 @@ public interface CharsetStringBuilder
         }
     }
 }
-
-