src/hotspot/share/runtime/arguments.cpp

@@ -96,10 +96,12 @@
 bool   Arguments::_BackgroundCompilation        = BackgroundCompilation;
 bool   Arguments::_ClipInlining                 = ClipInlining;
 intx   Arguments::_Tier3InvokeNotifyFreqLog     = Tier3InvokeNotifyFreqLog;
 intx   Arguments::_Tier4InvocationThreshold     = Tier4InvocationThreshold;
 
+bool   Arguments::_enable_preview               = false;
+
 char*  Arguments::SharedArchivePath             = NULL;
 
 AgentLibraryList Arguments::_libraryList;
 AgentLibraryList Arguments::_agentList;
 

@@ -2774,10 +2776,13 @@
         if (!create_numbered_property("jdk.module.addmods", "java.instrument", addmods_count++)) {
           return JNI_ENOMEM;
         }
       }
 #endif // !INCLUDE_JVMTI
+    // --enable_preview
+    } else if (match_option(option, "--enable-preview")) {
+      set_enable_preview();
     // -Xnoclassgc
     } else if (match_option(option, "-Xnoclassgc")) {
       if (FLAG_SET_CMDLINE(bool, ClassUnloading, false) != Flag::SUCCESS) {
         return JNI_EINVAL;
       }