Upgrade to Netty 4.1.43 (#48484)

With this update we can remove the mitigation in our custom allocator
which forces heap buffer allocations.

buildSrc/version.properties

@@ -21,7 +21,7 @@ slf4j             = 1.6.2
 # when updating the JNA version, also update the version in buildSrc/build.gradle
 jna               = 4.5.1
 
-netty             = 4.1.42.Final
+netty             = 4.1.43.Final
 joda              = 2.10.3
 
 # when updating this version, you need to ensure compatibility with:

modules/transport-netty4/licenses/netty-buffer-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-6e6fc9178d1f1401aa0d6b843341efb91720f2cd

modules/transport-netty4/licenses/netty-buffer-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+c0d142260a32709523e3bcf0d015b193f2ff2df4

modules/transport-netty4/licenses/netty-codec-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-b1d5ed85a558fbbadc2783f869fbd0adcd32b07b

modules/transport-netty4/licenses/netty-codec-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+44731a5739c40a8434c43e1303e9196f23da67fa

modules/transport-netty4/licenses/netty-codec-http-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-5f71267aa784d0e6c5ec09fb988339d244b205a0

modules/transport-netty4/licenses/netty-codec-http-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+07320f9db621dc51b79807a4e5094665f260432c

modules/transport-netty4/licenses/netty-common-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-e02700b574d3a0e2100308f971f0753ac8700e7c

modules/transport-netty4/licenses/netty-common-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+ccb6f627ded1bb2671a66a84506174d240c7bec8

modules/transport-netty4/licenses/netty-handler-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-fc6546be5df552d9729f008d8d41a6dee28127aa

modules/transport-netty4/licenses/netty-handler-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+f83ac0492d44057d07ec6d40cf79e8e2de949836

modules/transport-netty4/licenses/netty-resolver-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-ccaacf418a9e486b65e82c47bed66439119c5fdb

modules/transport-netty4/licenses/netty-resolver-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+94ae5a7e595fdc29dac254014e3159d3572d7e44

modules/transport-netty4/licenses/netty-transport-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-857502e863c02c829fdafea61c3fda6bda01d0af

modules/transport-netty4/licenses/netty-transport-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+781cd7cfc1118bdfe1538f39cc1f4d07d6254094

modules/transport-netty4/src/main/java/org/elasticsearch/transport/NettyAllocator.java

@@ -60,10 +60,6 @@ public class NettyAllocator {
         }
     }
 
-    public static boolean useCopySocket() {
-        return ALLOCATOR instanceof NoDirectBuffers;
-    }
-
     public static ByteBufAllocator getAllocator() {
         return ALLOCATOR;
     }
@@ -148,26 +144,17 @@ public class NettyAllocator {
 
         @Override
         public ByteBuf directBuffer() {
-            // TODO: Currently the Netty SslHandler requests direct ByteBufs even when interacting with the
-            //  JDK SSLEngine. This will be fixed in a future version of Netty. For now, return a heap
-            //  ByteBuf. After a Netty upgrade, return to throwing UnsupportedOperationException
-            return heapBuffer();
+            throw new UnsupportedOperationException("Direct buffers not supported");
         }
 
         @Override
         public ByteBuf directBuffer(int initialCapacity) {
-            // TODO: Currently the Netty SslHandler requests direct ByteBufs even when interacting with the
-            //  JDK SSLEngine. This will be fixed in a future version of Netty. For now, return a heap
-            //  ByteBuf. After a Netty upgrade, return to throwing UnsupportedOperationException
-            return heapBuffer(initialCapacity);
+            throw new UnsupportedOperationException("Direct buffers not supported");
         }
 
         @Override
         public ByteBuf directBuffer(int initialCapacity, int maxCapacity) {
-            // TODO: Currently the Netty SslHandler requests direct ByteBufs even when interacting with the
-            //  JDK SSLEngine. This will be fixed in a future version of Netty. For now, return a heap
-            //  ByteBuf. After a Netty upgrade, return to throwing UnsupportedOperationException
-            return heapBuffer(initialCapacity, maxCapacity);
+            throw new UnsupportedOperationException("Direct buffers not supported");
         }
 
         @Override

plugins/transport-nio/licenses/netty-buffer-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-6e6fc9178d1f1401aa0d6b843341efb91720f2cd

plugins/transport-nio/licenses/netty-buffer-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+c0d142260a32709523e3bcf0d015b193f2ff2df4

plugins/transport-nio/licenses/netty-codec-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-b1d5ed85a558fbbadc2783f869fbd0adcd32b07b

plugins/transport-nio/licenses/netty-codec-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+44731a5739c40a8434c43e1303e9196f23da67fa

plugins/transport-nio/licenses/netty-codec-http-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-5f71267aa784d0e6c5ec09fb988339d244b205a0

plugins/transport-nio/licenses/netty-codec-http-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+07320f9db621dc51b79807a4e5094665f260432c

plugins/transport-nio/licenses/netty-common-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-e02700b574d3a0e2100308f971f0753ac8700e7c

plugins/transport-nio/licenses/netty-common-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+ccb6f627ded1bb2671a66a84506174d240c7bec8

plugins/transport-nio/licenses/netty-handler-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-fc6546be5df552d9729f008d8d41a6dee28127aa

plugins/transport-nio/licenses/netty-handler-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+f83ac0492d44057d07ec6d40cf79e8e2de949836

plugins/transport-nio/licenses/netty-resolver-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-ccaacf418a9e486b65e82c47bed66439119c5fdb

plugins/transport-nio/licenses/netty-resolver-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+94ae5a7e595fdc29dac254014e3159d3572d7e44

plugins/transport-nio/licenses/netty-transport-4.1.42.Final.jar.sha1

@@ -1 +0,0 @@
-857502e863c02c829fdafea61c3fda6bda01d0af

plugins/transport-nio/licenses/netty-transport-4.1.43.Final.jar.sha1

@@ -0,0 +1 @@
+781cd7cfc1118bdfe1538f39cc1f4d07d6254094