Use Netty's Adaptive Buffers (default)

dev/com.ibm.ws.http2.client/src/com/ibm/ws/http2/test/frames/FrameSettingsClient.java

@@ -30,25 +30,6 @@ public class FrameSettingsClient extends com.ibm.ws.http.channel.h2internal.fram
 
     private final ByteBuf frame;
 
-    static {
-        // We discovered an issue with the adaptive allocator using Unsafe being unavailable
-        // and throwing exceptions which do not allow the tests to proceed due to Java 2 Security.
-        // Because of this, while this is fixed we will use the pooled allocator as before to
-        // ensure proper testing
-        if (System.getSecurityManager() == null) {
-            System.setProperty("io.netty.allocator.type", "pooled");
-        }
-        else {
-            AccessController.doPrivileged(new PrivilegedAction<Void>() {
-                @Override
-                public Void run() {
-                    System.setProperty("io.netty.allocator.type", "pooled");
-                    return null;
-                }
-            });
-        }
-    }
-
     /**
      *
      * @param streamId

dev/com.ibm.ws.transport.http/src/com/ibm/ws/http/channel/internal/inbound/HttpInboundServiceContextImpl.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2004, 2025 IBM Corporation and others.
+ * Copyright (c) 2004, 2026 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
@@ -2285,7 +2285,20 @@ private void nettyInitForwardedValues() {
         Matcher matcher = null;
 
         String remoteIp = nettyContext.channel().remoteAddress().toString();
-        remoteIp = remoteIp.substring(1, remoteIp.indexOf(':'));
+        // Note: Format changed in Netty 4.2
+        // Handing updated to work with both formats: "/127.0.0.1:port" and "hostname/127.0.0.1:port"
+
+        // If there's a hostname prefix (e.g., "localhost/127.0.0.1:port") or it starts with a forward slash,
+        // Extract just the IP:Port part
+        int slashIndex = remoteIp.indexOf('/');
+        if (slashIndex > 0) {
+            remoteIp = remoteIp.substring(slashIndex + 1);
+        }
+        // Extract IP address before the port
+        int colonIndex = remoteIp.indexOf(':');
+        if (colonIndex > 0) {
+            remoteIp = remoteIp.substring(0, colonIndex);
+        }
 
         String attribute;
 

dev/io.openliberty.netty.internal.impl/src/io/openliberty/netty/internal/impl/NettyFrameworkImpl.java

@@ -226,13 +226,13 @@ private void setNettySystemProperties() {
             // issues are found and leak detection is needed to debug them.
             System.setProperty("io.netty.leakDetection.level", "DISABLED");
         }
-        if (System.getProperty("io.netty.allocator.type") == null) {
-            // On Netty version 4.2, the default allocator changed from pooled to adaptive and so
-            // as of that moment, the adaptive allocator showed a regression from the pooled allocator
-            // used in Netty 4.1. We switch to the pooled allocator for the moment until these issues
-            // are addressed
-            System.setProperty("io.netty.allocator.type", "pooled");
-        }
+        // if (System.getProperty("io.netty.allocator.type") == null) {
+        //     // On Netty version 4.2, the default allocator changed from pooled to adaptive and so
+        //     // as of that moment, the adaptive allocator showed a regression from the pooled allocator
+        //     // used in Netty 4.1. We switch to the pooled allocator for the moment until these issues
+        //     // are addressed
+        //     System.setProperty("io.netty.allocator.type", "pooled");
+        // }
     }
 
     /*