--- a/src/hotspot/share/runtime/arguments.cpp Wed Nov 14 09:19:31 2018 +0100
+++ b/src/hotspot/share/runtime/arguments.cpp Wed Nov 14 04:56:43 2018 -0500
@@ -2642,23 +2642,7 @@
// Obsolete in JDK 10
JDK_Version::jdk(10).to_string(version, sizeof(version));
warning("Ignoring option %s; support was removed in %s", option->optionString, version);
- // -Xconcurrentio
- } else if (match_option(option, "-Xconcurrentio")) {
- if (FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true) != JVMFlag::SUCCESS) {
- return JNI_EINVAL;
- }
- if (FLAG_SET_CMDLINE(bool, BackgroundCompilation, false) != JVMFlag::SUCCESS) {
- return JNI_EINVAL;
- }
- SafepointSynchronize::set_defer_thr_suspend_loop_count();
- if (FLAG_SET_CMDLINE(bool, UseTLAB, false) != JVMFlag::SUCCESS) {
- return JNI_EINVAL;
- }
- if (FLAG_SET_CMDLINE(size_t, NewSizeThreadIncrease, 16 * K) != JVMFlag::SUCCESS) { // 20Kb per thread added to new generation
- return JNI_EINVAL;
- }
-
- // -Xinternalversion
+ // -Xinternalversion
} else if (match_option(option, "-Xinternalversion")) {
jio_fprintf(defaultStream::output_stream(), "%s\n",
VM_Version::internal_vm_info_string());