8213762: Deprecate Xmaxjitcodesize

Reviewed-by: kvn, epeter

Author: anton-seoane

src/hotspot/share/runtime/arguments.cpp

@@ -2483,6 +2483,9 @@ jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, JVMFlagOrigin
       }
     } else if (match_option(option, "-Xmaxjitcodesize", &tail) ||
                match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) {
+      if (match_option(option, "-Xmaxjitcodesize", &tail)) {
+        warning("Option -Xmaxjitcodesize was deprecated in JDK 26 and will likely be removed in a future release.");
+      }
       julong long_ReservedCodeCacheSize = 0;
 
       ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, 1);