Mergehs25-b57

30 files changed, 355 insertions, 167 deletions

diff --git a/src/share/vm/c1/c1_GraphBuilder.cpp b/src/share/vm/c1/c1_GraphBuilder.cpp
index 75e827b3b..26bb8d022 100644
--- a/src/share/vm/c1/c1_GraphBuilder.cpp
+++ b/src/share/vm/c1/c1_GraphBuilder.cpp
@@ -1873,7 +1873,7 @@ void GraphBuilder::invoke(Bytecodes::Code code) {
         // number of implementors for decl_interface is 0 or 1. If
         // it's 0 then no class implements decl_interface and there's
         // no point in inlining.
-        if (!holder->is_loaded() || decl_interface->nof_implementors() != 1) {
+        if (!holder->is_loaded() || decl_interface->nof_implementors() != 1 || decl_interface->has_default_methods()) {
           singleton = NULL;
         }
       }
diff --git a/src/share/vm/ci/ciInstanceKlass.cpp b/src/share/vm/ci/ciInstanceKlass.cpp
index d40e460dc..f4389da46 100644
--- a/src/share/vm/ci/ciInstanceKlass.cpp
+++ b/src/share/vm/ci/ciInstanceKlass.cpp
@@ -57,6 +57,7 @@ ciInstanceKlass::ciInstanceKlass(KlassHandle h_k) :
   _init_state = ik->init_state();
   _nonstatic_field_size = ik->nonstatic_field_size();
   _has_nonstatic_fields = ik->has_nonstatic_fields();
+  _has_default_methods = ik->has_default_methods();
   _nonstatic_fields = NULL; // initialized lazily by compute_nonstatic_fields:
 
   _implementor = NULL; // we will fill these lazily
diff --git a/src/share/vm/ci/ciInstanceKlass.hpp b/src/share/vm/ci/ciInstanceKlass.hpp
index fdd93ddc5..34eb84ccf 100644
--- a/src/share/vm/ci/ciInstanceKlass.hpp
+++ b/src/share/vm/ci/ciInstanceKlass.hpp
@@ -52,6 +52,7 @@ private:
   bool                   _has_finalizer;
   bool                   _has_subklass;
   bool                   _has_nonstatic_fields;
+  bool                   _has_default_methods;
 
   ciFlags                _flags;
   jint                   _nonstatic_field_size;
@@ -171,6 +172,11 @@ public:
     }
   }
 
+  bool has_default_methods()  {
+    assert(is_loaded(), "must be loaded");
+    return _has_default_methods;
+  }
+
   ciInstanceKlass* get_canonical_holder(int offset);
   ciField* get_field_by_offset(int field_offset, bool is_static);
   ciField* get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static);
diff --git a/src/share/vm/classfile/classLoaderData.cpp b/src/share/vm/classfile/classLoaderData.cpp
index 84c191e33..e3209ae18 100644
--- a/src/share/vm/classfile/classLoaderData.cpp
+++ b/src/share/vm/classfile/classLoaderData.cpp
@@ -131,6 +131,17 @@ void ClassLoaderData::classes_do(void f(Klass * const)) {
   }
 }
 
+void ClassLoaderData::loaded_classes_do(KlassClosure* klass_closure) {
+  // Lock to avoid classes being modified/added/removed during iteration
+  MutexLockerEx ml(metaspace_lock(),  Mutex::_no_safepoint_check_flag);
+  for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
+    // Do not filter ArrayKlass oops here...
+    if (k->oop_is_array() || (k->oop_is_instance() && InstanceKlass::cast(k)->is_loaded())) {
+      klass_closure->do_klass(k);
+    }
+  }
+}
+
 void ClassLoaderData::classes_do(void f(InstanceKlass*)) {
   for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
     if (k->oop_is_instance()) {
@@ -600,6 +611,12 @@ void ClassLoaderDataGraph::classes_do(void f(Klass* const)) {
   }
 }
 
+void ClassLoaderDataGraph::loaded_classes_do(KlassClosure* klass_closure) {
+  for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
+    cld->loaded_classes_do(klass_closure);
+  }
+}
+
 void ClassLoaderDataGraph::classes_unloading_do(void f(Klass* const)) {
   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!");
   for (ClassLoaderData* cld = _unloading; cld != NULL; cld = cld->next()) {
diff --git a/src/share/vm/classfile/classLoaderData.hpp b/src/share/vm/classfile/classLoaderData.hpp
index 6d5747483..cee114c75 100644
--- a/src/share/vm/classfile/classLoaderData.hpp
+++ b/src/share/vm/classfile/classLoaderData.hpp
@@ -78,6 +78,7 @@ class ClassLoaderDataGraph : public AllStatic {
   static void keep_alive_oops_do(OopClosure* blk, KlassClosure* klass_closure, bool must_claim);
   static void classes_do(KlassClosure* klass_closure);
   static void classes_do(void f(Klass* const));
+  static void loaded_classes_do(KlassClosure* klass_closure);
   static void classes_unloading_do(void f(Klass* const));
   static bool do_unloading(BoolObjectClosure* is_alive);
 
@@ -186,6 +187,7 @@ class ClassLoaderData : public CHeapObj<mtClass> {
   bool keep_alive() const       { return _keep_alive; }
   bool is_alive(BoolObjectClosure* is_alive_closure) const;
   void classes_do(void f(Klass*));
+  void loaded_classes_do(KlassClosure* klass_closure);
   void classes_do(void f(InstanceKlass*));
 
   // Deallocate free list during class unloading.
diff --git a/src/share/vm/classfile/systemDictionary.hpp b/src/share/vm/classfile/systemDictionary.hpp
index 85735a732..c64363645 100644
--- a/src/share/vm/classfile/systemDictionary.hpp
+++ b/src/share/vm/classfile/systemDictionary.hpp
@@ -173,8 +173,6 @@ class SymbolPropertyTable;
   /* It's okay if this turns out to be NULL in non-1.4 JDKs. */                                                          \
   do_klass(nio_Buffer_klass,                            java_nio_Buffer,                           Opt                 ) \
                                                                                                                          \
-  do_klass(PostVMInitHook_klass,                        sun_misc_PostVMInitHook,                   Opt                 ) \
-                                                                                                                         \
   /* Preload boxing klasses */                                                                                           \
   do_klass(Boolean_klass,                               java_lang_Boolean,                         Pre                 ) \
   do_klass(Character_klass,                             java_lang_Character,                       Pre                 ) \
diff --git a/src/share/vm/compiler/compileBroker.cpp b/src/share/vm/compiler/compileBroker.cpp
index bdfe2abd3..fb47df282 100644
--- a/src/share/vm/compiler/compileBroker.cpp
+++ b/src/share/vm/compiler/compileBroker.cpp
@@ -780,6 +780,10 @@ CompilerCounters::CompilerCounters(const char* thread_name, int instance, TRAPS)
 void CompileBroker::compilation_init() {
   _last_method_compiled[0] = '\0';
 
+  // No need to initialize compilation system if we do not use it.
+  if (!UseCompiler) {
+    return;
+  }
 #ifndef SHARK
   // Set the interface to the current compiler(s).
   int c1_count = CompilationPolicy::policy()->compiler_count(CompLevel_simple);
diff --git a/src/share/vm/interpreter/abstractInterpreter.hpp b/src/share/vm/interpreter/abstractInterpreter.hpp
index 4d7647ce0..0ebfd1cdf 100644
--- a/src/share/vm/interpreter/abstractInterpreter.hpp
+++ b/src/share/vm/interpreter/abstractInterpreter.hpp
@@ -158,8 +158,8 @@ class AbstractInterpreter: AllStatic {
   // Runtime support
 
   // length = invoke bytecode length (to advance to next bytecode)
-  static address    deopt_entry   (TosState state, int length) { ShouldNotReachHere(); return NULL; }
-  static address    return_entry  (TosState state, int length) { ShouldNotReachHere(); return NULL; }
+  static address deopt_entry(TosState state, int length) { ShouldNotReachHere(); return NULL; }
+  static address return_entry(TosState state, int length, Bytecodes::Code code) { ShouldNotReachHere(); return NULL; }
 
   static address    rethrow_exception_entry()                   { return _rethrow_exception_entry; }
 
diff --git a/src/share/vm/interpreter/cppInterpreter.hpp b/src/share/vm/interpreter/cppInterpreter.hpp
index 4997a4432..71f78840b 100644
--- a/src/share/vm/interpreter/cppInterpreter.hpp
+++ b/src/share/vm/interpreter/cppInterpreter.hpp
@@ -78,7 +78,7 @@ class CppInterpreter: public AbstractInterpreter {
   static address    stack_result_to_stack(int index)            { return _stack_to_stack[index]; }
   static address    stack_result_to_native(int index)           { return _stack_to_native_abi[index]; }
 
-  static address    return_entry  (TosState state, int length);
+  static address    return_entry  (TosState state, int length, Bytecodes::Code code);
   static address    deopt_entry   (TosState state, int length);
 
 #ifdef TARGET_ARCH_x86
diff --git a/src/share/vm/interpreter/interpreter.cpp b/src/share/vm/interpreter/interpreter.cpp
index dfd8b5b14..60246e901 100644
--- a/src/share/vm/interpreter/interpreter.cpp
+++ b/src/share/vm/interpreter/interpreter.cpp
@@ -329,15 +329,21 @@ void AbstractInterpreter::print_method_kind(MethodKind kind) {
 //------------------------------------------------------------------------------------------------------------------------
 // Deoptimization support
 
-// If deoptimization happens, this function returns the point of next bytecode to continue execution
+/**
+ * If a deoptimization happens, this function returns the point of next bytecode to continue execution.
+ */
 address AbstractInterpreter::deopt_continue_after_entry(Method* method, address bcp, int callee_parameters, bool is_top_frame) {
   assert(method->contains(bcp), "just checkin'");
-  Bytecodes::Code code   = Bytecodes::java_code_at(method, bcp);
+
+  // Get the original and rewritten bytecode.
+  Bytecodes::Code code = Bytecodes::java_code_at(method, bcp);
   assert(!Interpreter::bytecode_should_reexecute(code), "should not reexecute");
-  int             bci    = method->bci_from(bcp);
-  int             length = -1; // initial value for debugging
+
+  const int bci = method->bci_from(bcp);
+
   // compute continuation length
-  length = Bytecodes::length_at(method, bcp);
+  const int length = Bytecodes::length_at(method, bcp);
+
   // compute result type
   BasicType type = T_ILLEGAL;
 
@@ -393,7 +399,7 @@ address AbstractInterpreter::deopt_continue_after_entry(Method* method, address
   return
     is_top_frame
     ? Interpreter::deopt_entry (as_TosState(type), length)
-    : Interpreter::return_entry(as_TosState(type), length);
+    : Interpreter::return_entry(as_TosState(type), length, code);
 }
 
 // If deoptimization happens, this function returns the point where the interpreter reexecutes
diff --git a/src/share/vm/interpreter/templateInterpreter.cpp b/src/share/vm/interpreter/templateInterpreter.cpp
index 9f7ed4c7e..e3e89e8ee 100644
--- a/src/share/vm/interpreter/templateInterpreter.cpp
+++ b/src/share/vm/interpreter/templateInterpreter.cpp
@@ -184,8 +184,9 @@ EntryPoint TemplateInterpreter::_deopt_entry [TemplateInterpreter::number_of_deo
 EntryPoint TemplateInterpreter::_continuation_entry;
 EntryPoint TemplateInterpreter::_safept_entry;
 
-address    TemplateInterpreter::_return_3_addrs_by_index[TemplateInterpreter::number_of_return_addrs];
-address    TemplateInterpreter::_return_5_addrs_by_index[TemplateInterpreter::number_of_return_addrs];
+address TemplateInterpreter::_invoke_return_entry[TemplateInterpreter::number_of_return_addrs];
+address TemplateInterpreter::_invokeinterface_return_entry[TemplateInterpreter::number_of_return_addrs];
+address TemplateInterpreter::_invokedynamic_return_entry[TemplateInterpreter::number_of_return_addrs];
 
 DispatchTable TemplateInterpreter::_active_table;
 DispatchTable TemplateInterpreter::_normal_table;
@@ -237,22 +238,37 @@ void TemplateInterpreterGenerator::generate_all() {
 #endif // !PRODUCT
 
   { CodeletMark cm(_masm, "return entry points");
+    const int index_size = sizeof(u2);
     for (int i = 0; i < Interpreter::number_of_return_entries; i++) {
       Interpreter::_return_entry[i] =
         EntryPoint(
-          generate_return_entry_for(itos, i),
-          generate_return_entry_for(itos, i),
-          generate_return_entry_for(itos, i),
-          generate_return_entry_for(atos, i),
-          generate_return_entry_for(itos, i),
-          generate_return_entry_for(ltos, i),
-          generate_return_entry_for(ftos, i),
-          generate_return_entry_for(dtos, i),
-          generate_return_entry_for(vtos, i)
+          generate_return_entry_for(itos, i, index_size),
+          generate_return_entry_for(itos, i, index_size),
+          generate_return_entry_for(itos, i, index_size),
+          generate_return_entry_for(atos, i, index_size),
+          generate_return_entry_for(itos, i, index_size),
+          generate_return_entry_for(ltos, i, index_size),
+          generate_return_entry_for(ftos, i, index_size),
+          generate_return_entry_for(dtos, i, index_size),
+          generate_return_entry_for(vtos, i, index_size)
         );
     }
   }
 
+  { CodeletMark cm(_masm, "invoke return entry points");
+    const TosState states[] = {itos, itos, itos, itos, ltos, ftos, dtos, atos, vtos};
+    const int invoke_length = Bytecodes::length_for(Bytecodes::_invokestatic);
+    const int invokeinterface_length = Bytecodes::length_for(Bytecodes::_invokeinterface);
+    const int invokedynamic_length = Bytecodes::length_for(Bytecodes::_invokedynamic);
+
+    for (int i = 0; i < Interpreter::number_of_return_addrs; i++) {
+      TosState state = states[i];
+      Interpreter::_invoke_return_entry[i] = generate_return_entry_for(state, invoke_length, sizeof(u2));
+      Interpreter::_invokeinterface_return_entry[i] = generate_return_entry_for(state, invokeinterface_length, sizeof(u2));
+      Interpreter::_invokedynamic_return_entry[i] = generate_return_entry_for(state, invokedynamic_length, sizeof(u4));
+    }
+  }
+
   { CodeletMark cm(_masm, "earlyret entry points");
     Interpreter::_earlyret_entry =
       EntryPoint(
@@ -298,13 +314,6 @@ void TemplateInterpreterGenerator::generate_all() {
     }
   }
 
-  for (int j = 0; j < number_of_states; j++) {
-    const TosState states[] = {btos, ctos, stos, itos, ltos, ftos, dtos, atos, vtos};
-    int index = Interpreter::TosState_as_index(states[j]);
-    Interpreter::_return_3_addrs_by_index[index] = Interpreter::return_entry(states[j], 3);
-    Interpreter::_return_5_addrs_by_index[index] = Interpreter::return_entry(states[j], 5);
-  }
-
   { CodeletMark cm(_masm, "continuation entry points");
     Interpreter::_continuation_entry =
       EntryPoint(
@@ -534,9 +543,46 @@ void TemplateInterpreterGenerator::generate_and_dispatch(Template* t, TosState t
 //------------------------------------------------------------------------------------------------------------------------
 // Entry points
 
-address TemplateInterpreter::return_entry(TosState state, int length) {
+/**
+ * Returns the return entry table for the given invoke bytecode.
+ */
+address* TemplateInterpreter::invoke_return_entry_table_for(Bytecodes::Code code) {
+  switch (code) {
+  case Bytecodes::_invokestatic:
+  case Bytecodes::_invokespecial:
+  case Bytecodes::_invokevirtual:
+  case Bytecodes::_invokehandle:
+    return Interpreter::invoke_return_entry_table();
+  case Bytecodes::_invokeinterface:
+    return Interpreter::invokeinterface_return_entry_table();
+  case Bytecodes::_invokedynamic:
+    return Interpreter::invokedynamic_return_entry_table();
+  default:
+    fatal(err_msg("invalid bytecode: %s", Bytecodes::name(code)));
+    return NULL;
+  }
+}
+
+/**
+ * Returns the return entry address for the given top-of-stack state and bytecode.
+ */
+address TemplateInterpreter::return_entry(TosState state, int length, Bytecodes::Code code) {
   guarantee(0 <= length && length < Interpreter::number_of_return_entries, "illegal length");
-  return _return_entry[length].entry(state);
+  const int index = TosState_as_index(state);
+  switch (code) {
+  case Bytecodes::_invokestatic:
+  case Bytecodes::_invokespecial:
+  case Bytecodes::_invokevirtual:
+  case Bytecodes::_invokehandle:
+    return _invoke_return_entry[index];
+  case Bytecodes::_invokeinterface:
+    return _invokeinterface_return_entry[index];
+  case Bytecodes::_invokedynamic:
+    return _invokedynamic_return_entry[index];
+  default:
+    assert(!Bytecodes::is_invoke(code), err_msg("invoke instructions should be handled separately: %s", Bytecodes::name(code)));
+    return _return_entry[length].entry(state);
+  }
 }
 
 
diff --git a/src/share/vm/interpreter/templateInterpreter.hpp b/src/share/vm/interpreter/templateInterpreter.hpp
index 43fe4bdb1..838e2e084 100644
--- a/src/share/vm/interpreter/templateInterpreter.hpp
+++ b/src/share/vm/interpreter/templateInterpreter.hpp
@@ -120,8 +120,9 @@ class TemplateInterpreter: public AbstractInterpreter {
   static EntryPoint _continuation_entry;
   static EntryPoint _safept_entry;
 
-  static address    _return_3_addrs_by_index[number_of_return_addrs];     // for invokevirtual   return entries
-  static address    _return_5_addrs_by_index[number_of_return_addrs];     // for invokeinterface return entries
+  static address _invoke_return_entry[number_of_return_addrs];           // for invokestatic, invokespecial, invokevirtual return entries
+  static address _invokeinterface_return_entry[number_of_return_addrs];  // for invokeinterface return entries
+  static address _invokedynamic_return_entry[number_of_return_addrs];    // for invokedynamic return entries
 
   static DispatchTable _active_table;                           // the active    dispatch table (used by the interpreter for dispatch)
   static DispatchTable _normal_table;                           // the normal    dispatch table (used to set the active table in normal mode)
@@ -161,12 +162,15 @@ class TemplateInterpreter: public AbstractInterpreter {
   static address*   normal_table()                              { return _normal_table.table_for(); }
 
   // Support for invokes
-  static address*   return_3_addrs_by_index_table()             { return _return_3_addrs_by_index; }
-  static address*   return_5_addrs_by_index_table()             { return _return_5_addrs_by_index; }
-  static int        TosState_as_index(TosState state);          // computes index into return_3_entry_by_index table
+  static address*   invoke_return_entry_table()                 { return _invoke_return_entry; }
+  static address*   invokeinterface_return_entry_table()        { return _invokeinterface_return_entry; }
+  static address*   invokedynamic_return_entry_table()          { return _invokedynamic_return_entry; }
+  static int        TosState_as_index(TosState state);
 
-  static address    return_entry  (TosState state, int length);
-  static address    deopt_entry   (TosState state, int length);
+  static address* invoke_return_entry_table_for(Bytecodes::Code code);
+
+  static address deopt_entry(TosState state, int length);
+  static address return_entry(TosState state, int length, Bytecodes::Code code);
 
   // Safepoint support
   static void       notice_safepoints();                        // stops the thread when reaching a safepoint
diff --git a/src/share/vm/interpreter/templateInterpreterGenerator.hpp b/src/share/vm/interpreter/templateInterpreterGenerator.hpp
index fb7bdc5b6..a80caa964 100644
--- a/src/share/vm/interpreter/templateInterpreterGenerator.hpp
+++ b/src/share/vm/interpreter/templateInterpreterGenerator.hpp
@@ -53,7 +53,7 @@ class TemplateInterpreterGenerator: public AbstractInterpreterGenerator {
   address generate_ClassCastException_handler();
   address generate_ArrayIndexOutOfBounds_handler(const char* name);
   address generate_continuation_for(TosState state);
-  address generate_return_entry_for(TosState state, int step);
+  address generate_return_entry_for(TosState state, int step, size_t index_size);
   address generate_earlyret_entry_for(TosState state);
   address generate_deopt_entry_for(TosState state, int step);
   address generate_safept_entry_for(TosState state, address runtime_entry);
diff --git a/src/share/vm/memory/metaspace.cpp b/src/share/vm/memory/metaspace.cpp
index 187796740..8df4e32c3 100644
--- a/src/share/vm/memory/metaspace.cpp
+++ b/src/share/vm/memory/metaspace.cpp
@@ -56,7 +56,7 @@ size_t const allocation_from_dictionary_limit = 4 * K;
 
 MetaWord* last_allocated = 0;
 
-size_t Metaspace::_class_metaspace_size;
+size_t Metaspace::_compressed_class_space_size;
 
 // Used in declarations in SpaceManager and ChunkManager
 enum ChunkIndex {
@@ -2843,6 +2843,8 @@ ChunkManager* Metaspace::_chunk_manager_class = NULL;
 #define VIRTUALSPACEMULTIPLIER 2
 
 #ifdef _LP64
+static const uint64_t UnscaledClassSpaceMax = (uint64_t(max_juint) + 1);
+
 void Metaspace::set_narrow_klass_base_and_shift(address metaspace_base, address cds_base) {
   // Figure out the narrow_klass_base and the narrow_klass_shift.  The
   // narrow_klass_base is the lower of the metaspace base and the cds base
@@ -2852,14 +2854,22 @@ void Metaspace::set_narrow_klass_base_and_shift(address metaspace_base, address
   address higher_address;
   if (UseSharedSpaces) {
     higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
-                          (address)(metaspace_base + class_metaspace_size()));
+                          (address)(metaspace_base + compressed_class_space_size()));
     lower_base = MIN2(metaspace_base, cds_base);
   } else {
-    higher_address = metaspace_base + class_metaspace_size();
+    higher_address = metaspace_base + compressed_class_space_size();
     lower_base = metaspace_base;
+
+    uint64_t klass_encoding_max = UnscaledClassSpaceMax << LogKlassAlignmentInBytes;
+    // If compressed class space fits in lower 32G, we don't need a base.
+    if (higher_address <= (address)klass_encoding_max) {
+      lower_base = 0; // effectively lower base is zero.
+    }
   }
+
   Universe::set_narrow_klass_base(lower_base);
-  if ((uint64_t)(higher_address - lower_base) < (uint64_t)max_juint) {
+
+  if ((uint64_t)(higher_address - lower_base) < UnscaledClassSpaceMax) {
     Universe::set_narrow_klass_shift(0);
   } else {
     assert(!UseSharedSpaces, "Cannot shift with UseSharedSpaces");
@@ -2874,24 +2884,24 @@ bool Metaspace::can_use_cds_with_metaspace_addr(char* metaspace_base, address cd
   assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
   address lower_base = MIN2((address)metaspace_base, cds_base);
   address higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
-                                (address)(metaspace_base + class_metaspace_size()));
-  return ((uint64_t)(higher_address - lower_base) < (uint64_t)max_juint);
+                                (address)(metaspace_base + compressed_class_space_size()));
+  return ((uint64_t)(higher_address - lower_base) < UnscaledClassSpaceMax);
 }
 
 // Try to allocate the metaspace at the requested addr.
 void Metaspace::allocate_metaspace_compressed_klass_ptrs(char* requested_addr, address cds_base) {
   assert(using_class_space(), "called improperly");
   assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
-  assert(class_metaspace_size() < KlassEncodingMetaspaceMax,
+  assert(compressed_class_space_size() < KlassEncodingMetaspaceMax,
          "Metaspace size is too big");
-  assert_is_ptr_aligned(requested_addr,          _reserve_alignment);
-  assert_is_ptr_aligned(cds_base,                _reserve_alignment);
-  assert_is_size_aligned(class_metaspace_size(), _reserve_alignment);
+  assert_is_ptr_aligned(requested_addr, _reserve_alignment);
+  assert_is_ptr_aligned(cds_base, _reserve_alignment);
+  assert_is_size_aligned(compressed_class_space_size(), _reserve_alignment);
 
   // Don't use large pages for the class space.
   bool large_pages = false;
 
-  ReservedSpace metaspace_rs = ReservedSpace(class_metaspace_size(),
+  ReservedSpace metaspace_rs = ReservedSpace(compressed_class_space_size(),
                                              _reserve_alignment,
                                              large_pages,
                                              requested_addr, 0);
@@ -2906,7 +2916,7 @@ void Metaspace::allocate_metaspace_compressed_klass_ptrs(char* requested_addr, a
       while (!metaspace_rs.is_reserved() && (addr + increment > addr) &&
              can_use_cds_with_metaspace_addr(addr + increment, cds_base)) {
         addr = addr + increment;
-        metaspace_rs = ReservedSpace(class_metaspace_size(),
+        metaspace_rs = ReservedSpace(compressed_class_space_size(),
                                      _reserve_alignment, large_pages, addr, 0);
       }
     }
@@ -2917,11 +2927,11 @@ void Metaspace::allocate_metaspace_compressed_klass_ptrs(char* requested_addr, a
     // initialization has happened that depends on UseCompressedClassPointers.
     // So, UseCompressedClassPointers cannot be turned off at this point.
     if (!metaspace_rs.is_reserved()) {
-      metaspace_rs = ReservedSpace(class_metaspace_size(),
+      metaspace_rs = ReservedSpace(compressed_class_space_size(),
                                    _reserve_alignment, large_pages);
       if (!metaspace_rs.is_reserved()) {
         vm_exit_during_initialization(err_msg("Could not allocate metaspace: %d bytes",
-                                              class_metaspace_size()));
+                                              compressed_class_space_size()));
       }
     }
   }
@@ -2943,8 +2953,8 @@ void Metaspace::allocate_metaspace_compressed_klass_ptrs(char* requested_addr, a
   if (PrintCompressedOopsMode || (PrintMiscellaneous && Verbose)) {
     gclog_or_tty->print_cr("Narrow klass base: " PTR_FORMAT ", Narrow klass shift: " SIZE_FORMAT,
                             Universe::narrow_klass_base(), Universe::narrow_klass_shift());
-    gclog_or_tty->print_cr("Metaspace Size: " SIZE_FORMAT " Address: " PTR_FORMAT " Req Addr: " PTR_FORMAT,
-                           class_metaspace_size(), metaspace_rs.base(), requested_addr);
+    gclog_or_tty->print_cr("Compressed class space size: " SIZE_FORMAT " Address: " PTR_FORMAT " Req Addr: " PTR_FORMAT,
+                           compressed_class_space_size(), metaspace_rs.base(), requested_addr);
   }
 }
 
@@ -3010,7 +3020,7 @@ void Metaspace::ergo_initialize() {
   MaxMetaspaceExpansion = restricted_align_down(MaxMetaspaceExpansion, _commit_alignment);
 
   CompressedClassSpaceSize = restricted_align_down(CompressedClassSpaceSize, _reserve_alignment);
-  set_class_metaspace_size(CompressedClassSpaceSize);
+  set_compressed_class_space_size(CompressedClassSpaceSize);
 }
 
 void Metaspace::global_initialize() {
@@ -3039,12 +3049,12 @@ void Metaspace::global_initialize() {
     }
 
 #ifdef _LP64
-    if (cds_total + class_metaspace_size() > (uint64_t)max_juint) {
+    if (cds_total + compressed_class_space_size() > UnscaledClassSpaceMax) {
       vm_exit_during_initialization("Unable to dump shared archive.",
           err_msg("Size of archive (" SIZE_FORMAT ") + compressed class space ("
                   SIZE_FORMAT ") == total (" SIZE_FORMAT ") is larger than compressed "
-                  "klass limit: " SIZE_FORMAT, cds_total, class_metaspace_size(),
-                  cds_total + class_metaspace_size(), (size_t)max_juint));
+                  "klass limit: " SIZE_FORMAT, cds_total, compressed_class_space_size(),
+                  cds_total + compressed_class_space_size(), UnscaledClassSpaceMax));
     }
 
     // Set the compressed klass pointer base so that decoding of these pointers works
@@ -3092,7 +3102,8 @@ void Metaspace::global_initialize() {
         cds_end = (char *)align_ptr_up(cds_end, _reserve_alignment);
         allocate_metaspace_compressed_klass_ptrs(cds_end, cds_address);
       } else {
-        allocate_metaspace_compressed_klass_ptrs((char *)CompressedKlassPointersBase, 0);
+        char* base = (char*)align_ptr_up(Universe::heap()->reserved_region().end(), _reserve_alignment);
+        allocate_metaspace_compressed_klass_ptrs(base, 0);
       }
     }
 #endif
@@ -3354,6 +3365,11 @@ MetaWord* Metaspace::allocate(ClassLoaderData* loader_data, size_t word_size,
   return result;
 }
 
+size_t Metaspace::class_chunk_size(size_t word_size) {
+  assert(using_class_space(), "Has to use class space");
+  return class_vsm()->calc_chunk_size(word_size);
+}
+
 void Metaspace::report_metadata_oome(ClassLoaderData* loader_data, size_t word_size, MetadataType mdtype, TRAPS) {
   // If result is still null, we are out of memory.
   if (Verbose && TraceMetadataChunkAllocation) {
@@ -3365,9 +3381,19 @@ void Metaspace::report_metadata_oome(ClassLoaderData* loader_data, size_t word_s
     MetaspaceAux::dump(gclog_or_tty);
   }
 
+  bool out_of_compressed_class_space = false;
+  if (is_class_space_allocation(mdtype)) {
+    Metaspace* metaspace = loader_data->metaspace_non_null();
+    out_of_compressed_class_space =
+      MetaspaceAux::committed_bytes(Metaspace::ClassType) +
+      (metaspace->class_chunk_size(word_size) * BytesPerWord) >
+      CompressedClassSpaceSize;
+  }
+
   // -XX:+HeapDumpOnOutOfMemoryError and -XX:OnOutOfMemoryError support
-  const char* space_string = is_class_space_allocation(mdtype) ? "Compressed class space" :
-                                                                 "Metadata space";
+  const char* space_string = out_of_compressed_class_space ?
+    "Compressed class space" : "Metaspace";
+
   report_java_out_of_memory(space_string);
 
   if (JvmtiExport::should_post_resource_exhausted()) {
@@ -3380,7 +3406,7 @@ void Metaspace::report_metadata_oome(ClassLoaderData* loader_data, size_t word_s
     vm_exit_during_initialization("OutOfMemoryError", space_string);
   }
 
-  if (is_class_space_allocation(mdtype)) {
+  if (out_of_compressed_class_space) {
     THROW_OOP(Universe::out_of_memory_error_class_metaspace());
   } else {
     THROW_OOP(Universe::out_of_memory_error_metaspace());
diff --git a/src/share/vm/memory/metaspace.hpp b/src/share/vm/memory/metaspace.hpp
index 974a1aac6..c22d21707 100644
--- a/src/share/vm/memory/metaspace.hpp
+++ b/src/share/vm/memory/metaspace.hpp
@@ -115,13 +115,13 @@ class Metaspace : public CHeapObj<mtClass> {
   static size_t align_word_size_up(size_t);
 
   // Aligned size of the metaspace.
-  static size_t _class_metaspace_size;
+  static size_t _compressed_class_space_size;
 
-  static size_t class_metaspace_size() {
-    return _class_metaspace_size;
+  static size_t compressed_class_space_size() {
+    return _compressed_class_space_size;
   }
-  static void set_class_metaspace_size(size_t metaspace_size) {
-    _class_metaspace_size = metaspace_size;
+  static void set_compressed_class_space_size(size_t size) {
+    _compressed_class_space_size = size;
   }
 
   static size_t _first_chunk_word_size;
@@ -192,6 +192,8 @@ class Metaspace : public CHeapObj<mtClass> {
   AllocRecord * _alloc_record_head;
   AllocRecord * _alloc_record_tail;
 
+  size_t class_chunk_size(size_t word_size);
+
  public:
 
   Metaspace(Mutex* lock, MetaspaceType type);
@@ -252,6 +254,7 @@ class Metaspace : public CHeapObj<mtClass> {
   static bool is_class_space_allocation(MetadataType mdType) {
     return mdType == ClassType && using_class_space();
   }
+
 };
 
 class MetaspaceAux : AllStatic {
diff --git a/src/share/vm/memory/universe.cpp b/src/share/vm/memory/universe.cpp
index 1f632ae47..043962c63 100644
--- a/src/share/vm/memory/universe.cpp
+++ b/src/share/vm/memory/universe.cpp
@@ -677,13 +677,13 @@ jint universe_init() {
 // HeapBased - Use compressed oops with heap base + encoding.
 
 // 4Gb
-static const uint64_t NarrowOopHeapMax = (uint64_t(max_juint) + 1);
+static const uint64_t UnscaledOopHeapMax = (uint64_t(max_juint) + 1);
 // 32Gb
-// OopEncodingHeapMax == NarrowOopHeapMax << LogMinObjAlignmentInBytes;
+// OopEncodingHeapMax == UnscaledOopHeapMax << LogMinObjAlignmentInBytes;
 
 char* Universe::preferred_heap_base(size_t heap_size, size_t alignment, NARROW_OOP_MODE mode) {
   assert(is_size_aligned((size_t)OopEncodingHeapMax, alignment), "Must be");
-  assert(is_size_aligned((size_t)NarrowOopHeapMax, alignment), "Must be");
+  assert(is_size_aligned((size_t)UnscaledOopHeapMax, alignment), "Must be");
   assert(is_size_aligned(heap_size, alignment), "Must be");
 
   uintx heap_base_min_address_aligned = align_size_up(HeapBaseMinAddress, alignment);
@@ -702,20 +702,40 @@ char* Universe::preferred_heap_base(size_t heap_size, size_t alignment, NARROW_O
     // If the total size is small enough to allow UnscaledNarrowOop then
     // just use UnscaledNarrowOop.
     } else if ((total_size <= OopEncodingHeapMax) && (mode != HeapBasedNarrowOop)) {
-      if ((total_size <= NarrowOopHeapMax) && (mode == UnscaledNarrowOop) &&
+      if ((total_size <= UnscaledOopHeapMax) && (mode == UnscaledNarrowOop) &&
           (Universe::narrow_oop_shift() == 0)) {
         // Use 32-bits oops without encoding and
         // place heap's top on the 4Gb boundary
-        base = (NarrowOopHeapMax - heap_size);
+        base = (UnscaledOopHeapMax - heap_size);
       } else {
         // Can't reserve with NarrowOopShift == 0
         Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
+
         if (mode == UnscaledNarrowOop ||
-            mode == ZeroBasedNarrowOop && total_size <= NarrowOopHeapMax) {
+            mode == ZeroBasedNarrowOop && total_size <= UnscaledOopHeapMax) {
+
           // Use zero based compressed oops with encoding and
           // place heap's top on the 32Gb boundary in case
           // total_size > 4Gb or failed to reserve below 4Gb.
-          base = (OopEncodingHeapMax - heap_size);
+          uint64_t heap_top = OopEncodingHeapMax;
+
+          // For small heaps, save some space for compressed class pointer
+          // space so it can be decoded with no base.
+          if (UseCompressedClassPointers && !UseSharedSpaces &&
+              OopEncodingHeapMax <= 32*G) {
+
+            uint64_t class_space = align_size_up(CompressedClassSpaceSize, alignment);
+            assert(is_size_aligned((size_t)OopEncodingHeapMax-class_space,
+                   alignment), "difference must be aligned too");
+            uint64_t new_top = OopEncodingHeapMax-class_space;
+
+            if (total_size <= new_top) {
+              heap_top = new_top;
+            }
+          }
+
+          // Align base to the adjusted top of the heap
+          base = heap_top - heap_size;
         }
       }
     } else {
@@ -737,7 +757,7 @@ char* Universe::preferred_heap_base(size_t heap_size, size_t alignment, NARROW_O
       // Set to a non-NULL value so the ReservedSpace ctor computes
       // the correct no-access prefix.
       // The final value will be set in initialize_heap() below.
-      Universe::set_narrow_oop_base((address)NarrowOopHeapMax);
+      Universe::set_narrow_oop_base((address)UnscaledOopHeapMax);
 #ifdef _WIN64
       if (UseLargePages) {
         // Cannot allocate guard pages for implicit checks in indexed
@@ -833,7 +853,7 @@ jint Universe::initialize_heap() {
         Universe::set_narrow_oop_use_implicit_null_checks(true);
       }
 #endif //  _WIN64
-      if((uint64_t)Universe::heap()->reserved_region().end() > NarrowOopHeapMax) {
+      if((uint64_t)Universe::heap()->reserved_region().end() > UnscaledOopHeapMax) {
         // Can't reserve heap below 4Gb.
         Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
       } else {
@@ -1029,7 +1049,7 @@ bool universe_post_init() {
     Handle msg = java_lang_String::create_from_str("Java heap space", CHECK_false);
     java_lang_Throwable::set_message(Universe::_out_of_memory_error_java_heap, msg());
 
-    msg = java_lang_String::create_from_str("Metadata space", CHECK_false);
+    msg = java_lang_String::create_from_str("Metaspace", CHECK_false);
     java_lang_Throwable::set_message(Universe::_out_of_memory_error_metaspace, msg());
     msg = java_lang_String::create_from_str("Compressed class space", CHECK_false);
     java_lang_Throwable::set_message(Universe::_out_of_memory_error_class_metaspace, msg());
diff --git a/src/share/vm/oops/instanceKlass.cpp b/src/share/vm/oops/instanceKlass.cpp
index a8fa7b3ee..510102d4e 100644
--- a/src/share/vm/oops/instanceKlass.cpp
+++ b/src/share/vm/oops/instanceKlass.cpp
@@ -2393,15 +2393,38 @@ address InstanceKlass::static_field_addr(int offset) {
 
 
 const char* InstanceKlass::signature_name() const {
+  int hash_len = 0;
+  char hash_buf[40];
+
+  // If this is an anonymous class, append a hash to make the name unique
+  if (is_anonymous()) {
+    assert(EnableInvokeDynamic, "EnableInvokeDynamic was not set.");
+    intptr_t hash = (java_mirror() != NULL) ? java_mirror()->identity_hash() : 0;
+    sprintf(hash_buf, "/" UINTX_FORMAT, (uintx)hash);
+    hash_len = (int)strlen(hash_buf);
+  }
+
+  // Get the internal name as a c string
   const char* src = (const char*) (name()->as_C_string());
   const int src_length = (int)strlen(src);
-  char* dest = NEW_RESOURCE_ARRAY(char, src_length + 3);
-  int src_index = 0;
+
+  char* dest = NEW_RESOURCE_ARRAY(char, src_length + hash_len + 3);
+
+  // Add L as type indicator
   int dest_index = 0;
   dest[dest_index++] = 'L';
-  while (src_index < src_length) {
+
+  // Add the actual class name
+  for (int src_index = 0; src_index < src_length; ) {
     dest[dest_index++] = src[src_index++];
   }
+
+  // If we have a hash, append it
+  for (int hash_index = 0; hash_index < hash_len; ) {
+    dest[dest_index++] = hash_buf[hash_index++];
+  }
+
+  // Add the semicolon and the NULL
   dest[dest_index++] = ';';
   dest[dest_index] = '\0';
   return dest;
diff --git a/src/share/vm/oops/method.cpp b/src/share/vm/oops/method.cpp
index c0b4a97fc..7c292c3ff 100644
--- a/src/share/vm/oops/method.cpp
+++ b/src/share/vm/oops/method.cpp
@@ -1515,7 +1515,10 @@ Bytecodes::Code Method::orig_bytecode_at(int bci) const {
       return bp->orig_bytecode();
     }
   }
-  ShouldNotReachHere();
+  {
+    ResourceMark rm;
+    fatal(err_msg("no original bytecode found in %s at bci %d", name_and_sig_as_C_string(), bci));
+  }
   return Bytecodes::_shouldnotreachhere;
 }
 
diff --git a/src/share/vm/opto/library_call.cpp b/src/share/vm/opto/library_call.cpp
index 6a7ee6288..df6c29f57 100644
--- a/src/share/vm/opto/library_call.cpp
+++ b/src/share/vm/opto/library_call.cpp
@@ -2006,9 +2006,9 @@ bool LibraryCallKit::inline_math_addExactI(bool is_increment) {
   Node* arg2 = NULL;
 
   if (is_increment) {
-      arg2 = intcon(1);
+    arg2 = intcon(1);
   } else {
-      arg2 = argument(1);
+    arg2 = argument(1);
   }
 
   Node* add = _gvn.transform( new(C) AddExactINode(NULL, arg1, arg2) );
@@ -2056,7 +2056,7 @@ bool LibraryCallKit::inline_math_subtractExactL(bool is_decrement) {
   if (is_decrement) {
     arg2 = longcon(1);
   } else {
-    Node* arg2 = argument(2); // type long
+    arg2 = argument(2); // type long
     // argument(3) == TOP
   }
 
diff --git a/src/share/vm/opto/loopTransform.cpp b/src/share/vm/opto/loopTransform.cpp
index 41c0a9d41..55a533bc3 100644
--- a/src/share/vm/opto/loopTransform.cpp
+++ b/src/share/vm/opto/loopTransform.cpp
@@ -713,6 +713,10 @@ bool IdealLoopTree::policy_unroll( PhaseIdealLoop *phase ) const {
       case Op_ModL: body_size += 30; break;
       case Op_DivL: body_size += 30; break;
       case Op_MulL: body_size += 10; break;
+      case Op_FlagsProj:
+        // Can't handle unrolling of loops containing
+        // nodes that generate a FlagsProj at the moment
+        return false;
       case Op_StrComp:
       case Op_StrEquals:
       case Op_StrIndexOf:
diff --git a/src/share/vm/opto/postaloc.cpp b/src/share/vm/opto/postaloc.cpp
index 76de2ed16..2ad809d1a 100644
--- a/src/share/vm/opto/postaloc.cpp
+++ b/src/share/vm/opto/postaloc.cpp
@@ -97,7 +97,8 @@ int PhaseChaitin::yank( Node *old, Block *current_block, Node_List *value, Node_
 static bool expected_yanked_node(Node *old, Node *orig_old) {
   // This code is expected only next original nodes:
   // - load from constant table node which may have next data input nodes:
-  //     MachConstantBase, Phi, MachTemp, MachSpillCopy
+  //     MachConstantBase, MachTemp, MachSpillCopy
+  // - Phi nodes that are considered Junk
   // - load constant node which may have next data input nodes:
   //     MachTemp, MachSpillCopy
   // - MachSpillCopy
@@ -112,7 +113,9 @@ static bool expected_yanked_node(Node *old, Node *orig_old) {
     return (old == orig_old);
   } else if (old->is_MachTemp()) {
     return orig_old->is_Con();
-  } else if (old->is_Phi() || old->is_MachConstantBase()) {
+  } else if (old->is_Phi()) { // Junk phi's
+    return true;
+  } else if (old->is_MachConstantBase()) {
     return (orig_old->is_Con() && orig_old->is_MachConstant());
   }
   return false;
@@ -522,11 +525,9 @@ void PhaseChaitin::post_allocate_copy_removal() {
           u = u ? NodeSentinel : x; // Capture unique input, or NodeSentinel for 2nd input
       }
       if (u != NodeSentinel) {    // Junk Phi.  Remove
-        block->remove_node(j--);
-        phi_dex--;
-        _cfg.unmap_node_from_block(phi);
         phi->replace_by(u);
-        phi->disconnect_inputs(NULL, C);
+        j -= yank_if_dead(phi, block, &value, &regnd);
+        phi_dex--;
         continue;
       }
       // Note that if value[pidx] exists, then we merged no new values here
diff --git a/src/share/vm/opto/type.cpp b/src/share/vm/opto/type.cpp
index faf155516..3f628195f 100644
--- a/src/share/vm/opto/type.cpp
+++ b/src/share/vm/opto/type.cpp
@@ -2787,13 +2787,11 @@ intptr_t TypeOopPtr::get_con() const {
 
 //-----------------------------filter------------------------------------------
 // Do not allow interface-vs.-noninterface joins to collapse to top.
-const Type *TypeOopPtr::filter( const Type *kills ) const {
+const Type *TypeOopPtr::filter(const Type *kills) const {
 
   const Type* ft = join(kills);
   const TypeInstPtr* ftip = ft->isa_instptr();
   const TypeInstPtr* ktip = kills->isa_instptr();
-  const TypeKlassPtr* ftkp = ft->isa_klassptr();
-  const TypeKlassPtr* ktkp = kills->isa_klassptr();
 
   if (ft->empty()) {
     // Check for evil case of 'this' being a class and 'kills' expecting an
@@ -2807,8 +2805,6 @@ const Type *TypeOopPtr::filter( const Type *kills ) const {
     // uplift the type.
     if (!empty() && ktip != NULL && ktip->is_loaded() && ktip->klass()->is_interface())
       return kills;             // Uplift to interface
-    if (!empty() && ktkp != NULL && ktkp->klass()->is_loaded() && ktkp->klass()->is_interface())
-      return kills;             // Uplift to interface
 
     return Type::TOP;           // Canonical empty value
   }
@@ -2825,14 +2821,6 @@ const Type *TypeOopPtr::filter( const Type *kills ) const {
     assert(!ftip->klass_is_exact(), "interface could not be exact");
     return ktip->cast_to_ptr_type(ftip->ptr());
   }
-  // Interface klass type could be exact in opposite to interface type,
-  // return it here instead of incorrect Constant ptr J/L/Object (6894807).
-  if (ftkp != NULL && ktkp != NULL &&
-      ftkp->is_loaded() &&  ftkp->klass()->is_interface() &&
-      !ftkp->klass_is_exact() && // Keep exact interface klass
-      ktkp->is_loaded() && !ktkp->klass()->is_interface()) {
-    return ktkp->cast_to_ptr_type(ftkp->ptr());
-  }
 
   return ft;
 }
@@ -4385,6 +4373,33 @@ bool TypeKlassPtr::singleton(void) const {
   return (_offset == 0) && !below_centerline(_ptr);
 }
 
+// Do not allow interface-vs.-noninterface joins to collapse to top.
+const Type *TypeKlassPtr::filter(const Type *kills) const {
+  // logic here mirrors the one from TypeOopPtr::filter. See comments
+  // there.
+  const Type* ft = join(kills);
+  const TypeKlassPtr* ftkp = ft->isa_klassptr();
+  const TypeKlassPtr* ktkp = kills->isa_klassptr();
+
+  if (ft->empty()) {
+    if (!empty() && ktkp != NULL && ktkp->klass()->is_loaded() && ktkp->klass()->is_interface())
+      return kills;             // Uplift to interface
+
+    return Type::TOP;           // Canonical empty value
+  }
+
+  // Interface klass type could be exact in opposite to interface type,
+  // return it here instead of incorrect Constant ptr J/L/Object (6894807).
+  if (ftkp != NULL && ktkp != NULL &&
+      ftkp->is_loaded() &&  ftkp->klass()->is_interface() &&
+      !ftkp->klass_is_exact() && // Keep exact interface klass
+      ktkp->is_loaded() && !ktkp->klass()->is_interface()) {
+    return ktkp->cast_to_ptr_type(ftkp->ptr());
+  }
+
+  return ft;
+}
+
 //----------------------compute_klass------------------------------------------
 // Compute the defining klass for this class
 ciKlass* TypeAryPtr::compute_klass(DEBUG_ONLY(bool verify)) const {
diff --git a/src/share/vm/opto/type.hpp b/src/share/vm/opto/type.hpp
index e72baa96b..9810edfe7 100644
--- a/src/share/vm/opto/type.hpp
+++ b/src/share/vm/opto/type.hpp
@@ -63,7 +63,7 @@ class     TypeRawPtr;
 class     TypeOopPtr;
 class       TypeInstPtr;
 class       TypeAryPtr;
-class       TypeKlassPtr;
+class     TypeKlassPtr;
 class     TypeMetadataPtr;
 
 //------------------------------Type-------------------------------------------
@@ -1202,6 +1202,9 @@ public:
 
   virtual intptr_t get_con() const;
 
+  // Do not allow interface-vs.-noninterface joins to collapse to top.
+  virtual const Type *filter( const Type *kills ) const;
+
   // Convenience common pre-built types.
   static const TypeKlassPtr* OBJECT; // Not-null object klass or below
   static const TypeKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same
diff --git a/src/share/vm/prims/jvmtiGetLoadedClasses.cpp b/src/share/vm/prims/jvmtiGetLoadedClasses.cpp
index 51cfb384a..f58a5a3d5 100644
--- a/src/share/vm/prims/jvmtiGetLoadedClasses.cpp
+++ b/src/share/vm/prims/jvmtiGetLoadedClasses.cpp
@@ -29,8 +29,43 @@
 #include "runtime/thread.hpp"
 
 
+// The closure for GetLoadedClasses
+class LoadedClassesClosure : public KlassClosure {
+private:
+  Stack<jclass, mtInternal> _classStack;
+  JvmtiEnv* _env;
+
+public:
+  LoadedClassesClosure(JvmtiEnv* env) {
+    _env = env;
+  }
+
+  void do_klass(Klass* k) {
+    // Collect all jclasses
+    _classStack.push((jclass) _env->jni_reference(k->java_mirror()));
+  }
+
+  int extract(jclass* result_list) {
+    // The size of the Stack will be 0 after extract, so get it here
+    int count = (int)_classStack.size();
+    int i = count;
 
-// The closure for GetLoadedClasses and GetClassLoaderClasses
+    // Pop all jclasses, fill backwards
+    while (!_classStack.is_empty()) {
+      result_list[--i] = _classStack.pop();
+    }
+
+    // Return the number of elements written
+    return count;
+  }
+
+  // Return current size of the Stack
+  int get_count() {
+    return (int)_classStack.size();
+  }
+};
+
+// The closure for GetClassLoaderClasses
 class JvmtiGetLoadedClassesClosure : public StackObj {
   // Since the SystemDictionary::classes_do callback
   // doesn't pass a closureData pointer,
@@ -165,19 +200,6 @@ class JvmtiGetLoadedClassesClosure : public StackObj {
     }
   }
 
-  // Finally, the static methods that are the callbacks
-  static void increment(Klass* k) {
-    JvmtiGetLoadedClassesClosure* that = JvmtiGetLoadedClassesClosure::get_this();
-    if (that->get_initiatingLoader() == NULL) {
-      for (Klass* l = k; l != NULL; l = l->array_klass_or_null()) {
-        that->set_count(that->get_count() + 1);
-      }
-    } else if (k != NULL) {
-      // if initiating loader not null, just include the instance with 1 dimension
-      that->set_count(that->get_count() + 1);
-    }
-  }
-
   static void increment_with_loader(Klass* k, ClassLoaderData* loader_data) {
     JvmtiGetLoadedClassesClosure* that = JvmtiGetLoadedClassesClosure::get_this();
     oop class_loader = loader_data->class_loader();
@@ -196,24 +218,6 @@ class JvmtiGetLoadedClassesClosure : public StackObj {
     }
   }
 
-  static void add(Klass* k) {
-    JvmtiGetLoadedClassesClosure* that = JvmtiGetLoadedClassesClosure::get_this();
-    if (that->available()) {
-      if (that->get_initiatingLoader() == NULL) {
-        for (Klass* l = k; l != NULL; l = l->array_klass_or_null()) {
-          oop mirror = l->java_mirror();
-          that->set_element(that->get_index(), mirror);
-          that->set_index(that->get_index() + 1);
-        }
-      } else if (k != NULL) {
-        // if initiating loader not null, just include the instance with 1 dimension
-        oop mirror = k->java_mirror();
-        that->set_element(that->get_index(), mirror);
-        that->set_index(that->get_index() + 1);
-      }
-    }
-  }
-
   static void add_with_loader(Klass* k, ClassLoaderData* loader_data) {
     JvmtiGetLoadedClassesClosure* that = JvmtiGetLoadedClassesClosure::get_this();
     if (that->available()) {
@@ -255,39 +259,30 @@ class JvmtiGetLoadedClassesClosure : public StackObj {
 
 jvmtiError
 JvmtiGetLoadedClasses::getLoadedClasses(JvmtiEnv *env, jint* classCountPtr, jclass** classesPtr) {
-  // Since SystemDictionary::classes_do only takes a function pointer
-  // and doesn't call back with a closure data pointer,
-  // we can only pass static methods.
 
-  JvmtiGetLoadedClassesClosure closure;
+  LoadedClassesClosure closure(env);
   {
     // To get a consistent list of classes we need MultiArray_lock to ensure
-    // array classes aren't created, and SystemDictionary_lock to ensure that
-    // classes aren't added to the system dictionary,
+    // array classes aren't created.
     MutexLocker ma(MultiArray_lock);
-    MutexLocker sd(SystemDictionary_lock);
 
-    // First, count the classes
-    SystemDictionary::classes_do(&JvmtiGetLoadedClassesClosure::increment);
-    Universe::basic_type_classes_do(&JvmtiGetLoadedClassesClosure::increment);
-    // Next, fill in the classes
-    closure.allocate();
-    SystemDictionary::classes_do(&JvmtiGetLoadedClassesClosure::add);
-    Universe::basic_type_classes_do(&JvmtiGetLoadedClassesClosure::add);
-    // Drop the SystemDictionary_lock, so the results could be wrong from here,
-    // but we still have a snapshot.
+    // Iterate through all classes in ClassLoaderDataGraph
+    // and collect them using the LoadedClassesClosure
+    ClassLoaderDataGraph::loaded_classes_do(&closure);
   }
-  // Post results
+
+  // Return results by extracting the collected contents into a list
+  // allocated via JvmtiEnv
   jclass* result_list;
-  jvmtiError err = env->Allocate(closure.get_count() * sizeof(jclass),
-                                 (unsigned char**)&result_list);
-  if (err != JVMTI_ERROR_NONE) {
-    return err;
+  jvmtiError error = env->Allocate(closure.get_count() * sizeof(jclass),
+                               (unsigned char**)&result_list);
+
+  if (error == JVMTI_ERROR_NONE) {
+    int count = closure.extract(result_list);
+    *classCountPtr = count;
+    *classesPtr = result_list;
   }
-  closure.extract(env, result_list);
-  *classCountPtr = closure.get_count();
-  *classesPtr = result_list;
-  return JVMTI_ERROR_NONE;
+  return error;
 }
 
 jvmtiError
diff --git a/src/share/vm/runtime/arguments.cpp b/src/share/vm/runtime/arguments.cpp
index fce983f8c..8060dae03 100644
--- a/src/share/vm/runtime/arguments.cpp
+++ b/src/share/vm/runtime/arguments.cpp
@@ -1988,6 +1988,15 @@ void Arguments::check_deprecated_gc_flags() {
     warning("DefaultMaxRAMFraction is deprecated and will likely be removed in a future release. "
         "Use MaxRAMFraction instead.");
   }
+  if (FLAG_IS_CMDLINE(UseCMSCompactAtFullCollection)) {
+    warning("UseCMSCompactAtFullCollection is deprecated and will likely be removed in a future release.");
+  }
+  if (FLAG_IS_CMDLINE(CMSFullGCsBeforeCompaction)) {
+    warning("CMSFullGCsBeforeCompaction is deprecated and will likely be removed in a future release.");
+  }
+  if (FLAG_IS_CMDLINE(UseCMSCollectionPassing)) {
+    warning("UseCMSCollectionPassing is deprecated and will likely be removed in a future release.");
+  }
 }
 
 // Check stack pages settings
diff --git a/src/share/vm/runtime/handles.cpp b/src/share/vm/runtime/handles.cpp
index 1b4e9faec..ca73f86ba 100644
--- a/src/share/vm/runtime/handles.cpp
+++ b/src/share/vm/runtime/handles.cpp
@@ -45,7 +45,7 @@
 oop* HandleArea::allocate_handle(oop obj) {
   assert(_handle_mark_nesting > 1, "memory leak: allocating handle outside HandleMark");
   assert(_no_handle_mark_nesting == 0, "allocating handle inside NoHandleMark");
-  assert(obj->is_oop(), "sanity check");
+  assert(obj->is_oop(), err_msg("not an oop: " INTPTR_FORMAT, (intptr_t*) obj));
   return real_allocate_handle(obj);
 }
 
diff --git a/src/share/vm/runtime/thread.cpp b/src/share/vm/runtime/thread.cpp
index f645be31d..9f31c25b7 100644
--- a/src/share/vm/runtime/thread.cpp
+++ b/src/share/vm/runtime/thread.cpp
@@ -1097,7 +1097,7 @@ static const char* get_java_runtime_version(TRAPS) {
 // General purpose hook into Java code, run once when the VM is initialized.
 // The Java library method itself may be changed independently from the VM.
 static void call_postVMInitHook(TRAPS) {
-  Klass* k = SystemDictionary::PostVMInitHook_klass();
+  Klass* k = SystemDictionary::resolve_or_null(vmSymbols::sun_misc_PostVMInitHook(), THREAD);
   instanceKlassHandle klass (THREAD, k);
   if (klass.not_null()) {
     JavaValue result(T_VOID);
diff --git a/src/share/vm/services/jmm.h b/src/share/vm/services/jmm.h
index 9f46499b4..e0a748a41 100644
--- a/src/share/vm/services/jmm.h
+++ b/src/share/vm/services/jmm.h
@@ -78,6 +78,7 @@ typedef enum {
   JMM_COMPILE_TOTAL_TIME_MS          = 8,    /* Total accumulated time spent in compilation */
   JMM_GC_TIME_MS                     = 9,    /* Total accumulated time spent in collection */
   JMM_GC_COUNT                       = 10,   /* Total number of collections */
+  JMM_JVM_UPTIME_MS                  = 11,   /* The JVM uptime in milliseconds */
 
   JMM_INTERNAL_ATTRIBUTE_INDEX       = 100,
   JMM_CLASS_LOADED_BYTES             = 101,  /* Number of bytes loaded instance classes */
diff --git a/src/share/vm/services/management.cpp b/src/share/vm/services/management.cpp
index 9c8798960..9585960da 100644
--- a/src/share/vm/services/management.cpp
+++ b/src/share/vm/services/management.cpp
@@ -1032,6 +1032,9 @@ static jlong get_long_attribute(jmmLongAttribute att) {
   case JMM_JVM_INIT_DONE_TIME_MS:
     return Management::vm_init_done_time();
 
+  case JMM_JVM_UPTIME_MS:
+    return Management::ticks_to_ms(os::elapsed_counter());
+
   case JMM_COMPILE_TOTAL_TIME_MS:
     return Management::ticks_to_ms(CompileBroker::total_compilation_ticks());
 
diff --git a/src/share/vm/utilities/globalDefinitions.hpp b/src/share/vm/utilities/globalDefinitions.hpp
index 06a32dc90..7806cdc08 100644
--- a/src/share/vm/utilities/globalDefinitions.hpp
+++ b/src/share/vm/utilities/globalDefinitions.hpp
@@ -368,8 +368,6 @@ const int KlassAlignment           = KlassAlignmentInBytes / HeapWordSize;
 // Klass encoding metaspace max size
 const uint64_t KlassEncodingMetaspaceMax = (uint64_t(max_juint) + 1) << LogKlassAlignmentInBytes;
 
-const jlong CompressedKlassPointersBase = NOT_LP64(0) LP64_ONLY(CONST64(0x800000000));  // 32*G
-
 // Machine dependent stuff
 
 #ifdef TARGET_ARCH_x86