6711908: JVM needs direct access to some annotations

Add annotation extraction code to class file parser.

Reviewed-by: twisti, jrose, kvn

hotspot/src/share/vm/c1/c1_GraphBuilder.cpp

@@ -3505,8 +3505,10 @@ bool GraphBuilder::try_inline_full(ciMethod* callee, bool holder_known, BlockBeg
   }
 
   // now perform tests that are based on flag settings
-  if (callee->should_inline()) {
+  if (callee->force_inline() || callee->should_inline()) {
     // ignore heuristic controls on inlining
+    if (callee->force_inline())
+      CompileTask::print_inlining(callee, scope()->level(), bci(), "force inline by annotation");
   } else {
     if (inline_level() > MaxInlineLevel                         ) INLINE_BAILOUT("too-deep inlining");
     if (recursive_inline_level(callee) > MaxRecursiveInlineLevel) INLINE_BAILOUT("too-deep recursive inlining");

hotspot/src/share/vm/ci/ciMethod.hpp

@@ -160,6 +160,8 @@ class ciMethod : public ciObject {
   // Code size for inlining decisions.
   int code_size_for_inlining();
 
+  bool force_inline() { return get_methodOop()->force_inline(); }
+
   int comp_level();
   int highest_osr_comp_level();
 

hotspot/src/share/vm/classfile/classFileParser.cpp

@@ -318,6 +318,13 @@ class ConstantPoolCleaner : public StackObj {
 
 bool inline valid_cp_range(int index, int length) { return (index > 0 && index < length); }
 
+inline Symbol* check_symbol_at(constantPoolHandle cp, int index) {
+  if (valid_cp_range(index, cp->length()) && cp->tag_at(index).is_utf8())
+    return cp->symbol_at(index);
+  else
+    return NULL;
+}
+
 constantPoolHandle ClassFileParser::parse_constant_pool(Handle class_loader, TRAPS) {
   ClassFileStream* cfs = stream();
   constantPoolHandle nullHandle;
@@ -902,6 +909,7 @@ void ClassFileParser::parse_field_attributes(constantPoolHandle cp,
                                              bool* is_synthetic_addr,
                                              u2* generic_signature_index_addr,
                                              typeArrayHandle* field_annotations,
+                                             ClassFileParser::FieldAnnotationCollector* parsed_annotations,
                                              TRAPS) {
   ClassFileStream* cfs = stream();
   assert(attributes_count > 0, "length should be greater than 0");
@@ -1142,12 +1150,14 @@ typeArrayHandle ClassFileParser::parse_fields(Symbol* class_name,
     bool is_synthetic = false;
     u2 generic_signature_index = 0;
     bool is_static = access_flags.is_static();
+    FieldAnnotationCollector parsed_annotations;
 
     u2 attributes_count = cfs->get_u2_fast();
     if (attributes_count > 0) {
       parse_field_attributes(cp, attributes_count, is_static, signature_index,
                              &constantvalue_index, &is_synthetic,
                              &generic_signature_index, &field_annotations,
+                             &parsed_annotations,
                              CHECK_(nullHandle));
       if (field_annotations.not_null()) {
         if (fields_annotations->is_null()) {
@@ -1173,6 +1183,8 @@ typeArrayHandle ClassFileParser::parse_fields(Symbol* class_name,
                       signature_index,
                       constantvalue_index,
                       0);
+    if (parsed_annotations.has_any_annotations())
+      parsed_annotations.apply_to(field);
 
     BasicType type = cp->basic_type_for_signature_at(signature_index);
 
@@ -1638,12 +1650,158 @@ void ClassFileParser::throwIllegalSignature(
       name->as_C_string(), _class_name->as_C_string(), sig->as_C_string());
 }
 
+// Skip an annotation.  Return >=limit if there is any problem.
+int ClassFileParser::skip_annotation(u1* buffer, int limit, int index) {
+  // annotation := atype:u2 do(nmem:u2) {member:u2 value}
+  // value := switch (tag:u1) { ... }
+  index += 2;  // skip atype
+  if ((index += 2) >= limit)  return limit;  // read nmem
+  int nmem = Bytes::get_Java_u2(buffer+index-2);
+  while (--nmem >= 0 && index < limit) {
+    index += 2; // skip member
+    index = skip_annotation_value(buffer, limit, index);
+  }
+  return index;
+}
+
+// Skip an annotation value.  Return >=limit if there is any problem.
+int ClassFileParser::skip_annotation_value(u1* buffer, int limit, int index) {
+  // value := switch (tag:u1) {
+  //   case B, C, I, S, Z, D, F, J, c: con:u2;
+  //   case e: e_class:u2 e_name:u2;
+  //   case s: s_con:u2;
+  //   case [: do(nval:u2) {value};
+  //   case @: annotation;
+  //   case s: s_con:u2;
+  // }
+  if ((index += 1) >= limit)  return limit;  // read tag
+  u1 tag = buffer[index-1];
+  switch (tag) {
+  case 'B': case 'C': case 'I': case 'S': case 'Z':
+  case 'D': case 'F': case 'J': case 'c': case 's':
+    index += 2;  // skip con or s_con
+    break;
+  case 'e':
+    index += 4;  // skip e_class, e_name
+    break;
+  case '[':
+    {
+      if ((index += 2) >= limit)  return limit;  // read nval
+      int nval = Bytes::get_Java_u2(buffer+index-2);
+      while (--nval >= 0 && index < limit) {
+        index = skip_annotation_value(buffer, limit, index);
+      }
+    }
+    break;
+  case '@':
+    index = skip_annotation(buffer, limit, index);
+    break;
+  default:
+    assert(false, "annotation tag");
+    return limit;  //  bad tag byte
+  }
+  return index;
+}
+
+// Sift through annotations, looking for those significant to the VM:
+void ClassFileParser::parse_annotations(u1* buffer, int limit,
+                                        constantPoolHandle cp,
+                                        ClassFileParser::AnnotationCollector* coll,
+                                        TRAPS) {
+  // annotations := do(nann:u2) {annotation}
+  int index = 0;
+  if ((index += 2) >= limit)  return;  // read nann
+  int nann = Bytes::get_Java_u2(buffer+index-2);
+  enum {  // initial annotation layout
+    atype_off = 0,      // utf8 such as 'Ljava/lang/annotation/Retention;'
+    count_off = 2,      // u2   such as 1 (one value)
+    member_off = 4,     // utf8 such as 'value'
+    tag_off = 6,        // u1   such as 'c' (type) or 'e' (enum)
+    e_tag_val = 'e',
+      e_type_off = 7,   // utf8 such as 'Ljava/lang/annotation/RetentionPolicy;'
+      e_con_off = 9,    // utf8 payload, such as 'SOURCE', 'CLASS', 'RUNTIME'
+      e_size = 11,     // end of 'e' annotation
+    c_tag_val = 'c',
+      c_con_off = 7,    // utf8 payload, such as 'I' or 'Ljava/lang/String;'
+      c_size = 9,       // end of 'c' annotation
+    min_size = 6        // smallest possible size (zero members)
+  };
+  while ((--nann) >= 0 && (index-2 + min_size <= limit)) {
+    int index0 = index;
+    index = skip_annotation(buffer, limit, index);
+    u1* abase = buffer + index0;
+    int atype = Bytes::get_Java_u2(abase + atype_off);
+    int count = Bytes::get_Java_u2(abase + count_off);
+    Symbol* aname = check_symbol_at(cp, atype);
+    if (aname == NULL)  break;  // invalid annotation name
+    Symbol* member = NULL;
+    if (count >= 1) {
+      int member_index = Bytes::get_Java_u2(abase + member_off);
+      member = check_symbol_at(cp, member_index);
+      if (member == NULL)  break;  // invalid member name
+    }
+
+    // Here is where parsing particular annotations will take place.
+    AnnotationCollector::ID id = coll->annotation_index(aname);
+    if (id == AnnotationCollector::_unknown)  continue;
+    coll->set_annotation(id);
+    // If there are no values, just set the bit and move on:
+    if (count == 0)   continue;
+
+    // For the record, here is how annotation payloads can be collected.
+    // Suppose we want to capture @Retention.value.  Here is how:
+    //if (id == AnnotationCollector::_class_Retention) {
+    //  Symbol* payload = NULL;
+    //  if (count == 1
+    //      && e_size == (index0 - index)  // match size
+    //      && e_tag_val == *(abase + tag_off)
+    //      && (check_symbol_at(cp, Bytes::get_Java_u2(abase + e_type_off))
+    //          == vmSymbols::RetentionPolicy_signature())
+    //      && member == vmSymbols::value_name()) {
+    //    payload = check_symbol_at(cp, Bytes::get_Java_u2(abase + e_con_off));
+    //  }
+    //  check_property(payload != NULL,
+    //                 "Invalid @Retention annotation at offset %u in class file %s",
+    //                 index0, CHECK);
+    //  if (payload != NULL) {
+    //      payload->increment_refcount();
+    //      coll->_class_RetentionPolicy = payload;
+    //  }
+    //}
+  }
+}
+
+ClassFileParser::AnnotationCollector::ID ClassFileParser::AnnotationCollector::annotation_index(Symbol* name) {
+  vmSymbols::SID sid = vmSymbols::find_sid(name);
+  switch (sid) {
+  case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_ForceInline_signature):
+    if (_location != _in_method)  break;  // only allow for methods
+    return _method_ForceInline;
+  default: break;
+  }
+  return AnnotationCollector::_unknown;
+}
+
+void ClassFileParser::FieldAnnotationCollector::apply_to(FieldInfo* f) {
+  fatal("no field annotations yet");
+}
+
+void ClassFileParser::MethodAnnotationCollector::apply_to(methodHandle m) {
+  if (has_annotation(_method_ForceInline))
+    m->set_force_inline(true);
+}
+
+void ClassFileParser::ClassAnnotationCollector::apply_to(instanceKlassHandle k) {
+  fatal("no class annotations yet");
+}
+
+
 #define MAX_ARGS_SIZE 255
 #define MAX_CODE_SIZE 65535
 #define INITIAL_MAX_LVT_NUMBER 256
 
 // Note: the parse_method below is big and clunky because all parsing of the code and exceptions
-// attribute is inlined. This is curbersome to avoid since we inline most of the parts in the
+// attribute is inlined. This is cumbersome to avoid since we inline most of the parts in the
 // methodOop to save footprint, so we only know the size of the resulting methodOop when the
 // entire method attribute is parsed.
 //
@@ -1733,6 +1891,7 @@ methodHandle ClassFileParser::parse_method(constantPoolHandle cp, bool is_interf
   // stackmap attribute - JDK1.5
   typeArrayHandle stackmap_data;
   u2 generic_signature_index = 0;
+  MethodAnnotationCollector parsed_annotations;
   u1* runtime_visible_annotations = NULL;
   int runtime_visible_annotations_length = 0;
   u1* runtime_invisible_annotations = NULL;
@@ -1959,6 +2118,7 @@ methodHandle ClassFileParser::parse_method(constantPoolHandle cp, bool is_interf
         runtime_visible_annotations_length = method_attribute_length;
         runtime_visible_annotations = cfs->get_u1_buffer();
         assert(runtime_visible_annotations != NULL, "null visible annotations");
+        parse_annotations(runtime_visible_annotations, runtime_visible_annotations_length, cp, &parsed_annotations, CHECK_(nullHandle));
         cfs->skip_u1(runtime_visible_annotations_length, CHECK_(nullHandle));
       } else if (PreserveAllAnnotations && method_attribute_name == vmSymbols::tag_runtime_invisible_annotations()) {
         runtime_invisible_annotations_length = method_attribute_length;
@@ -2136,6 +2296,8 @@ methodHandle ClassFileParser::parse_method(constantPoolHandle cp, bool is_interf
     clear_hashtable(lvt_Hash);
   }
 
+  if (parsed_annotations.has_any_annotations())
+    parsed_annotations.apply_to(m);
   *method_annotations = assemble_annotations(runtime_visible_annotations,
                                              runtime_visible_annotations_length,
                                              runtime_invisible_annotations,
@@ -2314,7 +2476,7 @@ typeArrayHandle ClassFileParser::sort_methods(objArrayHandle methods,
 }
 
 
-void ClassFileParser::parse_classfile_sourcefile_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS) {
+void ClassFileParser::parse_classfile_sourcefile_attribute(constantPoolHandle cp, TRAPS) {
   ClassFileStream* cfs = stream();
   cfs->guarantee_more(2, CHECK);  // sourcefile_index
   u2 sourcefile_index = cfs->get_u2_fast();
@@ -2323,13 +2485,12 @@ void ClassFileParser::parse_classfile_sourcefile_attribute(constantPoolHandle cp
       cp->tag_at(sourcefile_index).is_utf8(),
     "Invalid SourceFile attribute at constant pool index %u in class file %s",
     sourcefile_index, CHECK);
-  k->set_source_file_name(cp->symbol_at(sourcefile_index));
+  set_class_sourcefile(cp->symbol_at(sourcefile_index));
 }
 
 
 
 void ClassFileParser::parse_classfile_source_debug_extension_attribute(constantPoolHandle cp,
-                                                                       instanceKlassHandle k,
                                                                        int length, TRAPS) {
   ClassFileStream* cfs = stream();
   u1* sde_buffer = cfs->get_u1_buffer();
@@ -2340,9 +2501,9 @@ void ClassFileParser::parse_classfile_source_debug_extension_attribute(constantP
     // Optimistically assume that only 1 byte UTF format is used
     // (common case)
     TempNewSymbol sde_symbol = SymbolTable::new_symbol((const char*)sde_buffer, length, CHECK);
-    k->set_source_debug_extension(sde_symbol);
     // Note that set_source_debug_extension() increments the reference count
     // for its copy of the Symbol*, so use a TempNewSymbol here.
+    set_class_sde_symbol(sde_symbol);
   }
   // Got utf8 string, set stream position forward
   cfs->skip_u1(length, CHECK);
@@ -2358,7 +2519,7 @@ u2 ClassFileParser::parse_classfile_inner_classes_attribute(u1* inner_classes_at
                                                             u2 enclosing_method_class_index,
                                                             u2 enclosing_method_method_index,
                                                             constantPoolHandle cp,
-                                                            instanceKlassHandle k, TRAPS) {
+                                                            TRAPS) {
   ClassFileStream* cfs = stream();
   u1* current_mark = cfs->current();
   u2 length = 0;
@@ -2449,7 +2610,7 @@ u2 ClassFileParser::parse_classfile_inner_classes_attribute(u1* inner_classes_at
   assert(index == size, "wrong size");
 
   // Update instanceKlass with inner class info.
-  k->set_inner_classes(inner_classes());
+  set_class_inner_classes(inner_classes);
 
   // Restore buffer's current position.
   cfs->set_current(current_mark);
@@ -2457,11 +2618,11 @@ u2 ClassFileParser::parse_classfile_inner_classes_attribute(u1* inner_classes_at
   return length;
 }
 
-void ClassFileParser::parse_classfile_synthetic_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS) {
+void ClassFileParser::parse_classfile_synthetic_attribute(constantPoolHandle cp, TRAPS) {
-  k->set_is_synthetic();
+  set_class_synthetic_flag(true);
 }
 
-void ClassFileParser::parse_classfile_signature_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS) {
+void ClassFileParser::parse_classfile_signature_attribute(constantPoolHandle cp, TRAPS) {
   ClassFileStream* cfs = stream();
   u2 signature_index = cfs->get_u2(CHECK);
   check_property(
@@ -2469,10 +2630,10 @@ void ClassFileParser::parse_classfile_signature_attribute(constantPoolHandle cp,
       cp->tag_at(signature_index).is_utf8(),
     "Invalid constant pool index %u in Signature attribute in class file %s",
     signature_index, CHECK);
-  k->set_generic_signature(cp->symbol_at(signature_index));
+  set_class_generic_signature(cp->symbol_at(signature_index));
 }
 
-void ClassFileParser::parse_classfile_bootstrap_methods_attribute(constantPoolHandle cp, instanceKlassHandle k,
+void ClassFileParser::parse_classfile_bootstrap_methods_attribute(constantPoolHandle cp,
                                                                   u4 attribute_byte_length, TRAPS) {
   ClassFileStream* cfs = stream();
   u1* current_start = cfs->current();
@@ -2544,10 +2705,12 @@ void ClassFileParser::parse_classfile_bootstrap_methods_attribute(constantPoolHa
 }
 
 
-void ClassFileParser::parse_classfile_attributes(constantPoolHandle cp, instanceKlassHandle k, TRAPS) {
+void ClassFileParser::parse_classfile_attributes(constantPoolHandle cp,
+                                                 ClassFileParser::ClassAnnotationCollector* parsed_annotations,
+                                                 TRAPS) {
   ClassFileStream* cfs = stream();
   // Set inner classes attribute to default sentinel
-  k->set_inner_classes(Universe::the_empty_short_array());
+  set_class_inner_classes(typeArrayHandle(THREAD, Universe::the_empty_short_array()));
   cfs->guarantee_more(2, CHECK);  // attributes_count
   u2 attributes_count = cfs->get_u2_fast();
   bool parsed_sourcefile_attribute = false;
@@ -2583,10 +2746,10 @@ void ClassFileParser::parse_classfile_attributes(constantPoolHandle cp, instance
       } else {
         parsed_sourcefile_attribute = true;
       }
-      parse_classfile_sourcefile_attribute(cp, k, CHECK);
+      parse_classfile_sourcefile_attribute(cp, CHECK);
     } else if (tag == vmSymbols::tag_source_debug_extension()) {
       // Check for SourceDebugExtension tag
-      parse_classfile_source_debug_extension_attribute(cp, k, (int)attribute_length, CHECK);
+      parse_classfile_source_debug_extension_attribute(cp, (int)attribute_length, CHECK);
     } else if (tag == vmSymbols::tag_inner_classes()) {
       // Check for InnerClasses tag
       if (parsed_innerclasses_attribute) {
@@ -2605,7 +2768,7 @@ void ClassFileParser::parse_classfile_attributes(constantPoolHandle cp, instance
           "Invalid Synthetic classfile attribute length %u in class file %s",
           attribute_length, CHECK);
       }
-      parse_classfile_synthetic_attribute(cp, k, CHECK);
+      parse_classfile_synthetic_attribute(cp, CHECK);
     } else if (tag == vmSymbols::tag_deprecated()) {
       // Check for Deprecatd tag - 4276120
       if (attribute_length != 0) {
@@ -2620,11 +2783,16 @@ void ClassFileParser::parse_classfile_attributes(constantPoolHandle cp, instance
             "Wrong Signature attribute length %u in class file %s",
             attribute_length, CHECK);
         }
-        parse_classfile_signature_attribute(cp, k, CHECK);
+        parse_classfile_signature_attribute(cp, CHECK);
       } else if (tag == vmSymbols::tag_runtime_visible_annotations()) {
         runtime_visible_annotations_length = attribute_length;
         runtime_visible_annotations = cfs->get_u1_buffer();
         assert(runtime_visible_annotations != NULL, "null visible annotations");
+        parse_annotations(runtime_visible_annotations,
+                          runtime_visible_annotations_length,
+                          cp,
+                          parsed_annotations,
+                          CHECK);
         cfs->skip_u1(runtime_visible_annotations_length, CHECK);
       } else if (PreserveAllAnnotations && tag == vmSymbols::tag_runtime_invisible_annotations()) {
         runtime_invisible_annotations_length = attribute_length;
@@ -2658,7 +2826,7 @@ void ClassFileParser::parse_classfile_attributes(constantPoolHandle cp, instance
         if (parsed_bootstrap_methods_attribute)
           classfile_parse_error("Multiple BootstrapMethods attributes in class file %s", CHECK);
         parsed_bootstrap_methods_attribute = true;
-        parse_classfile_bootstrap_methods_attribute(cp, k, attribute_length, CHECK);
+        parse_classfile_bootstrap_methods_attribute(cp, attribute_length, CHECK);
       } else {
         // Unknown attribute
         cfs->skip_u1(attribute_length, CHECK);
@@ -2673,7 +2841,7 @@ void ClassFileParser::parse_classfile_attributes(constantPoolHandle cp, instance
                                                      runtime_invisible_annotations,
                                                      runtime_invisible_annotations_length,
                                                      CHECK);
-  k->set_class_annotations(annotations());
+  set_class_annotations(annotations);
 
   if (parsed_innerclasses_attribute || parsed_enclosingmethod_attribute) {
     u2 num_of_classes = parse_classfile_inner_classes_attribute(
@@ -2681,7 +2849,7 @@ void ClassFileParser::parse_classfile_attributes(constantPoolHandle cp, instance
                             parsed_innerclasses_attribute,
                             enclosing_method_class_index,
                             enclosing_method_method_index,
-                            cp, k, CHECK);
+                            cp, CHECK);
     if (parsed_innerclasses_attribute &&_need_verify && _major_version >= JAVA_1_5_VERSION) {
       guarantee_property(
         inner_classes_attribute_length == sizeof(num_of_classes) + 4 * sizeof(u2) * num_of_classes,
@@ -2695,6 +2863,21 @@ void ClassFileParser::parse_classfile_attributes(constantPoolHandle cp, instance
   }
 }
 
+void ClassFileParser::apply_parsed_class_attributes(instanceKlassHandle k) {
+  if (_synthetic_flag)
+    k->set_is_synthetic();
+  if (_sourcefile != NULL) {
+    _sourcefile->increment_refcount();
+    k->set_source_file_name(_sourcefile);
+  }
+  if (_generic_signature != NULL) {
+    _generic_signature->increment_refcount();
+    k->set_generic_signature(_generic_signature);
+  }
+  k->set_source_debug_extension(_sde_symbol);  // increment_refcount inside
+  k->set_inner_classes(_inner_classes());
+  k->set_class_annotations(_annotations());
+}
 
 typeArrayHandle ClassFileParser::assemble_annotations(u1* runtime_visible_annotations,
                                                       int runtime_visible_annotations_length,
@@ -2745,8 +2928,7 @@ instanceKlassHandle ClassFileParser::parseClassFile(Symbol* name,
                             jt->get_thread_stat()->perf_timers_addr(),
                             PerfClassTraceTime::PARSE_CLASS);
 
-  _has_finalizer = _has_empty_finalizer = _has_vanilla_constructor = false;
+  init_parsed_class_attributes();
-  _max_bootstrap_specifier_index = -1;
 
   if (JvmtiExport::should_post_class_file_load_hook()) {
     // Get the cached class file bytes (if any) from the class that
@@ -2979,6 +3161,13 @@ instanceKlassHandle ClassFileParser::parseClassFile(Symbol* name,
     objArrayHandle methods_parameter_annotations(THREAD, methods_parameter_annotations_oop);
     objArrayHandle methods_default_annotations(THREAD, methods_default_annotations_oop);
 
+    // Additional attributes
+    ClassAnnotationCollector parsed_annotations;
+    parse_classfile_attributes(cp, &parsed_annotations, CHECK_(nullHandle));
+
+    // Make sure this is the end of class file stream
+    guarantee_property(cfs->at_eos(), "Extra bytes at the end of class file %s", CHECK_(nullHandle));
+
     // We check super class after class file is parsed and format is checked
     if (super_class_index > 0 && super_klass.is_null()) {
       Symbol*  sk  = cp->klass_name_at(super_class_index);
@@ -3467,11 +3656,10 @@ instanceKlassHandle ClassFileParser::parseClassFile(Symbol* name,
       this_klass->set_has_miranda_methods(); // then set a flag
     }
 
-    // Additional attributes
+    // Fill in field values obtained by parse_classfile_attributes
-    parse_classfile_attributes(cp, this_klass, CHECK_(nullHandle));
+    if (parsed_annotations.has_any_annotations())
-
+      parsed_annotations.apply_to(this_klass);
-    // Make sure this is the end of class file stream
+    apply_parsed_class_attributes(this_klass);
-    guarantee_property(cfs->at_eos(), "Extra bytes at the end of class file %s", CHECK_(nullHandle));
 
     // VerifyOops believes that once this has been set, the object is completely loaded.
     // Compute transitive closure of interfaces this class implements
@@ -3486,6 +3674,7 @@ instanceKlassHandle ClassFileParser::parseClassFile(Symbol* name,
     // Do final class setup
     fill_oop_maps(this_klass, nonstatic_oop_map_count, nonstatic_oop_offsets, nonstatic_oop_counts);
 
+    // Fill in has_finalizer, has_vanilla_constructor, and layout_helper
     set_precomputed_flags(this_klass);
 
     // reinitialize modifiers, using the InnerClasses attribute

hotspot/src/share/vm/classfile/classFileParser.hpp

@@ -31,8 +31,8 @@
 #include "oops/typeArrayOop.hpp"
 #include "runtime/handles.inline.hpp"
 #include "utilities/accessFlags.hpp"
+#include "classfile/symbolTable.hpp"
 
-class TempNewSymbol;
 class FieldAllocationCount;
 
 
@@ -50,11 +50,77 @@ class ClassFileParser VALUE_OBJ_CLASS_SPEC {
   KlassHandle _host_klass;
   GrowableArray<Handle>* _cp_patches; // overrides for CP entries
 
+  // precomputed flags
   bool _has_finalizer;
   bool _has_empty_finalizer;
   bool _has_vanilla_constructor;
+  int _max_bootstrap_specifier_index;  // detects BSS values
 
-  int _max_bootstrap_specifier_index;
+  // class attributes parsed before the instance klass is created:
+  bool       _synthetic_flag;
+  Symbol*    _sourcefile;
+  Symbol*    _generic_signature;
+  TempNewSymbol   _sde_symbol;
+  typeArrayHandle _inner_classes;
+  typeArrayHandle _annotations;
+
+  void set_class_synthetic_flag(bool x)           { _synthetic_flag = x; }
+  void set_class_sourcefile(Symbol* x)            { _sourcefile = x; }
+  void set_class_generic_signature(Symbol* x)     { _generic_signature = x; }
+  void set_class_sde_symbol(Symbol* x)            { _sde_symbol = x; }
+  void set_class_inner_classes(typeArrayHandle x) { _inner_classes = x; }
+  void set_class_annotations(typeArrayHandle x)   { _annotations = x; }
+  void init_parsed_class_attributes() {
+    _synthetic_flag = false;
+    _sourcefile = NULL;
+    _generic_signature = NULL;
+    // initialize the other flags too:
+    _has_finalizer = _has_empty_finalizer = _has_vanilla_constructor = false;
+    _max_bootstrap_specifier_index = -1;
+  }
+  void apply_parsed_class_attributes(instanceKlassHandle k);  // update k
+
+  class AnnotationCollector {
+  public:
+    enum Location { _in_field, _in_method, _in_class };
+    enum ID {
+      _unknown = 0,
+      _method_ForceInline,
+      _annotation_LIMIT
+    };
+    const Location _location;
+    int _annotations_present;
+    AnnotationCollector(Location location)
+    : _location(location), _annotations_present(0)
+    {
+      assert((int)_annotation_LIMIT <= (int)sizeof(_annotations_present) * BitsPerByte, "");
+    }
+    // If this annotation name has an ID, report it (or _none).
+    ID annotation_index(Symbol* name);
+    // Set the annotation name:
+    void set_annotation(ID id) {
+      assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob");
+      _annotations_present |= nth_bit((int)id);
+    }
+    // Report if the annotation is present.
+    bool has_any_annotations() { return _annotations_present != 0; }
+    bool has_annotation(ID id) { return (nth_bit((int)id) & _annotations_present) != 0; }
+  };
+  class FieldAnnotationCollector: public AnnotationCollector {
+  public:
+    FieldAnnotationCollector() : AnnotationCollector(_in_field) { }
+    void apply_to(FieldInfo* f);
+  };
+  class MethodAnnotationCollector: public AnnotationCollector {
+  public:
+    MethodAnnotationCollector() : AnnotationCollector(_in_method) { }
+    void apply_to(methodHandle m);
+  };
+  class ClassAnnotationCollector: public AnnotationCollector {
+  public:
+    ClassAnnotationCollector() : AnnotationCollector(_in_class) { }
+    void apply_to(instanceKlassHandle k);
+  };
 
   enum { fixed_buffer_size = 128 };
   u_char linenumbertable_buffer[fixed_buffer_size];
@@ -87,7 +153,9 @@ class ClassFileParser VALUE_OBJ_CLASS_SPEC {
                               u2* constantvalue_index_addr,
                               bool* is_synthetic_addr,
                               u2* generic_signature_index_addr,
-                              typeArrayHandle* field_annotations, TRAPS);
+                              typeArrayHandle* field_annotations,
+                              FieldAnnotationCollector* parsed_annotations,
+                              TRAPS);
   typeArrayHandle parse_fields(Symbol* class_name,
                                constantPoolHandle cp, bool is_interface,
                                FieldAllocationCount *fac,
@@ -128,25 +196,32 @@ class ClassFileParser VALUE_OBJ_CLASS_SPEC {
   typeArrayOop parse_stackmap_table(u4 code_attribute_length, TRAPS);
 
   // Classfile attribute parsing
-  void parse_classfile_sourcefile_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS);
+  void parse_classfile_sourcefile_attribute(constantPoolHandle cp, TRAPS);
-  void parse_classfile_source_debug_extension_attribute(constantPoolHandle cp,
+  void parse_classfile_source_debug_extension_attribute(constantPoolHandle cp, int length, TRAPS);
-                                                instanceKlassHandle k, int length, TRAPS);
   u2   parse_classfile_inner_classes_attribute(u1* inner_classes_attribute_start,
                                                bool parsed_enclosingmethod_attribute,
                                                u2 enclosing_method_class_index,
                                                u2 enclosing_method_method_index,
                                                constantPoolHandle cp,
-                                               instanceKlassHandle k, TRAPS);
+                                               TRAPS);
-  void parse_classfile_attributes(constantPoolHandle cp, instanceKlassHandle k, TRAPS);
+  void parse_classfile_attributes(constantPoolHandle cp,
-  void parse_classfile_synthetic_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS);
+                                  ClassAnnotationCollector* parsed_annotations,
-  void parse_classfile_signature_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS);
+                                  TRAPS);
-  void parse_classfile_bootstrap_methods_attribute(constantPoolHandle cp, instanceKlassHandle k, u4 attribute_length, TRAPS);
+  void parse_classfile_synthetic_attribute(constantPoolHandle cp, TRAPS);
+  void parse_classfile_signature_attribute(constantPoolHandle cp, TRAPS);
+  void parse_classfile_bootstrap_methods_attribute(constantPoolHandle cp, u4 attribute_length, TRAPS);
 
   // Annotations handling
   typeArrayHandle assemble_annotations(u1* runtime_visible_annotations,
                                        int runtime_visible_annotations_length,
                                        u1* runtime_invisible_annotations,
                                        int runtime_invisible_annotations_length, TRAPS);
+  int skip_annotation(u1* buffer, int limit, int index);
+  int skip_annotation_value(u1* buffer, int limit, int index);
+  void parse_annotations(u1* buffer, int limit, constantPoolHandle cp,
+                         /* Results (currently, only one result is supported): */
+                         AnnotationCollector* result,
+                         TRAPS);
 
   // Final setup
   unsigned int compute_oop_map_count(instanceKlassHandle super,

hotspot/src/share/vm/classfile/vmSymbols.hpp

@@ -257,6 +257,7 @@
   template(java_lang_invoke_BoundMethodHandle,        "java/lang/invoke/BoundMethodHandle")       \
   template(java_lang_invoke_DirectMethodHandle,       "java/lang/invoke/DirectMethodHandle")      \
   template(java_lang_invoke_CountingMethodHandle,     "java/lang/invoke/CountingMethodHandle")    \
+  template(java_lang_invoke_ForceInline_signature,    "Ljava/lang/invoke/ForceInline;")           \
   /* internal up-calls made only by the JVM, via class sun.invoke.MethodHandleNatives: */         \
   template(findMethodHandleType_name,                 "findMethodHandleType")                     \
   template(findMethodHandleType_signature,       "(Ljava/lang/Class;[Ljava/lang/Class;)Ljava/lang/invoke/MethodType;") \

hotspot/src/share/vm/oops/methodOop.hpp

@@ -123,7 +123,8 @@ class methodOopDesc : public oopDesc {
   u2                _size_of_parameters;         // size of the parameter block (receiver + arguments) in words
   u1                _intrinsic_id;               // vmSymbols::intrinsic_id (0 == _none)
   u1                _jfr_towrite  : 1,           // Flags
-                                 : 7;
+                    _force_inline : 1,
+                                  : 6;
   u2                _interpreter_throwout_count; // Count of times method was exited via exception while interpreting
   u2                _number_of_breakpoints;      // fullspeed debugging support
   InvocationCounter _invocation_counter;         // Incremented before each activation of the method - used to trigger frequency-based optimizations
@@ -655,6 +656,9 @@ class methodOopDesc : public oopDesc {
   bool jfr_towrite()                 { return _jfr_towrite; }
   void set_jfr_towrite(bool towrite) { _jfr_towrite = towrite; }
 
+  bool force_inline()            { return _force_inline; }
+  void set_force_inline(bool fi) { _force_inline = fi; }
+
   // On-stack replacement support
   bool has_osr_nmethod(int level, bool match_level) {
    return instanceKlass::cast(method_holder())->lookup_osr_nmethod(this, InvocationEntryBci, level, match_level) != NULL;