--- old/src/hotspot/share/runtime/arguments.cpp 2018-04-05 09:15:16.982234887 -0400 +++ new/src/hotspot/share/runtime/arguments.cpp 2018-04-05 09:15:16.377957014 -0400 @@ -98,6 +98,8 @@ intx Arguments::_Tier3InvokeNotifyFreqLog = Tier3InvokeNotifyFreqLog; intx Arguments::_Tier4InvocationThreshold = Tier4InvocationThreshold; +bool Arguments::_enable_preview = false; + char* Arguments::SharedArchivePath = NULL; AgentLibraryList Arguments::_libraryList; @@ -2776,6 +2778,9 @@ } } #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) {