8073944: Simplify ArgumentsExt and remove unneeded functionallity

Reviewed-by: kbarrett, dholmes

src/share/vm/runtime/arguments.cpp

@@ -1572,7 +1572,7 @@ void Arguments::select_gc_ergonomically() {
 
 void Arguments::select_gc() {
   if (!gc_selected()) {
-    ArgumentsExt::select_gc_ergonomically();
+    select_gc_ergonomically();
   }
 }
 
@@ -2067,7 +2067,7 @@ bool Arguments::verify_MaxHeapFreeRatio(FormatBuffer<80>& err_msg, uintx max_hea
 }
 
 // Check consistency of GC selection
-bool Arguments::check_gc_consistency_user() {
+bool Arguments::check_gc_consistency() {
   check_gclog_consistency();
   bool status = true;
   // Ensure that the user has not selected conflicting sets
@@ -2233,7 +2233,7 @@ bool Arguments::check_vm_args_consistency() {
     FLAG_SET_DEFAULT(UseGCOverheadLimit, false);
   }
 
-  status = status && check_gc_consistency_user();
+  status = status && check_gc_consistency();
   status = status && check_stack_pages();
 
   if (CMSIncrementalMode) {
@@ -4006,7 +4006,7 @@ jint Arguments::apply_ergo() {
   set_shared_spaces_flags();
 
   // Check the GC selections again.
-  if (!ArgumentsExt::check_gc_consistency_ergo()) {
+  if (!check_gc_consistency()) {
     return JNI_EINVAL;
   }
 

src/share/vm/runtime/arguments.hpp

@@ -466,8 +466,7 @@ class Arguments : AllStatic {
   static bool verify_MaxHeapFreeRatio(FormatBuffer<80>& err_msg, uintx max_heap_free_ratio);
 
   // Check for consistency in the selection of the garbage collector.
-  static bool check_gc_consistency_user();        // Check user-selected gc
-  static inline bool check_gc_consistency_ergo(); // Check ergonomic-selected gc
+  static bool check_gc_consistency();        // Check user-selected gc
   static void check_deprecated_gcs();
   static void check_deprecated_gc_flags();
   // Check consistecy or otherwise of VM argument settings
@@ -615,8 +614,4 @@ bool Arguments::gc_selected() {
     UseParNewGC || UseSerialGC;
 }
 
-bool Arguments::check_gc_consistency_ergo() {
-  return check_gc_consistency_user();
-}
-
 #endif // SHARE_VM_RUNTIME_ARGUMENTS_HPP

src/share/vm/runtime/arguments_ext.hpp

@@ -30,22 +30,12 @@
 
 class ArgumentsExt: AllStatic {
 public:
-  static inline void select_gc_ergonomically();
   static inline void set_gc_specific_flags();
-  static inline bool check_gc_consistency_ergo();
   static        void process_options(const JavaVMInitArgs* args) {}
 };
 
-void ArgumentsExt::select_gc_ergonomically() {
-  Arguments::select_gc_ergonomically();
-}
-
 void ArgumentsExt::set_gc_specific_flags() {
   Arguments::set_gc_specific_flags();
 }
 
-bool ArgumentsExt::check_gc_consistency_ergo() {
-  return Arguments::check_gc_consistency_ergo();
-}
-
 #endif // SHARE_VM_RUNTIME_ARGUMENTS_EXT_HPP