Avoid using the byte buffer used to calculate memory address quarkusi…

…o#9750

* Recompute the field from a unused direct byte buffer.
* Also, set empty byte buffer memory address to 0.

extensions/netty/runtime/src/main/java/io/quarkus/netty/runtime/graal/NettySubstitutions.java

@@ -1,5 +1,6 @@
 package io.quarkus.netty.runtime.graal;
 
+import java.nio.ByteBuffer;
 import java.security.PrivateKey;
 import java.security.Provider;
 import java.security.cert.X509Certificate;
@@ -389,6 +390,19 @@ static Class<?> tryToLoadClass(final ClassLoader loader, final Class<?> helper)
 
 }
 
+@TargetClass(className = "io.netty.buffer.EmptyByteBuf")
+final class Target_io_netty_buffer_EmptyByteBuf {
+
+    @Alias
+    @RecomputeFieldValue(kind = RecomputeFieldValue.Kind.FromAlias)
+    private static ByteBuffer EMPTY_BYTE_BUFFER = ByteBuffer.allocateDirect(0);
+
+    @Alias
+    @RecomputeFieldValue(kind = RecomputeFieldValue.Kind.FromAlias)
+    private static long EMPTY_BYTE_BUFFER_ADDRESS = 0;
+
+}
+
 class NettySubstitutions {
 
 }