src/hotspot/share/runtime/arguments.hpp

@@ -356,10 +356,13 @@
   // -Xdebug flag
   static bool _xdebug_mode;
   static void set_xdebug_mode(bool arg) { _xdebug_mode = arg; }
   static bool xdebug_mode()             { return _xdebug_mode; }
 
+  // preview features
+  static bool _enable_preview;
+
   // Used to save default settings
   static bool _AlwaysCompileLoopMethods;
   static bool _UseOnStackReplacement;
   static bool _BackgroundCompilation;
   static bool _ClipInlining;

@@ -689,10 +692,13 @@
 
   // Operation modi
   static Mode mode()                        { return _mode; }
   static bool is_interpreter_only() { return mode() == _int; }
 
+  // preview features
+  static void set_enable_preview() { _enable_preview = true; }
+  static bool enable_preview() { return _enable_preview; }
 
   // Utility: copies src into buf, replacing "%%" with "%" and "%p" with pid.
   static bool copy_expand_pid(const char* src, size_t srclen, char* buf, size_t buflen);
 
   static void check_unsupported_dumping_properties() NOT_CDS_RETURN;