69 
  70     if (this_class->is_interface() && (!from_field_is_protected ||
  71         from.name() != vmSymbols::java_lang_Object())) {
  72       // If we are not trying to access a protected field or method in
  73       // java.lang.Object then we treat interfaces as java.lang.Object,
  74       // including java.lang.Cloneable and java.io.Serializable.
  75       return true;
  76     } else if (from.is_object()) {
  77       Klass* from_class = SystemDictionary::resolve_or_fail(
  78           from.name(), Handle(THREAD, klass->class_loader()),
  79           Handle(THREAD, klass->protection_domain()), true, CHECK_false);
  80       if (TraceClassResolution) {
  81         Verifier::trace_class_resolution(from_class, klass());
  82       }
  83       return InstanceKlass::cast(from_class)->is_subclass_of(this_class());
  84     }
  85   } else if (is_array() && from.is_array()) {
  86     VerificationType comp_this = get_component(context, CHECK_false);
  87     VerificationType comp_from = from.get_component(context, CHECK_false);
  88     if (!comp_this.is_bogus() && !comp_from.is_bogus()) {
  89       return comp_this.is_assignable_from(comp_from, context,
  90                                           from_field_is_protected, CHECK_false);
  91     }
  92   }
  93   return false;
  94 }
  95 
  96 VerificationType VerificationType::get_component(ClassVerifier *context, TRAPS) const {
  97   assert(is_array() && name()->utf8_length() >= 2, "Must be a valid array");
  98   Symbol* component;
  99   switch (name()->byte_at(1)) {
 100     case 'Z': return VerificationType(Boolean);
 101     case 'B': return VerificationType(Byte);
 102     case 'C': return VerificationType(Char);
 103     case 'S': return VerificationType(Short);
 104     case 'I': return VerificationType(Integer);
 105     case 'J': return VerificationType(Long);
 106     case 'F': return VerificationType(Float);
 107     case 'D': return VerificationType(Double);
 108     case '[':
 109       component = context->create_temporary_symbol(

  69 
  70     if (this_class->is_interface() && (!from_field_is_protected ||
  71         from.name() != vmSymbols::java_lang_Object())) {
  72       // If we are not trying to access a protected field or method in
  73       // java.lang.Object then we treat interfaces as java.lang.Object,
  74       // including java.lang.Cloneable and java.io.Serializable.
  75       return true;
  76     } else if (from.is_object()) {
  77       Klass* from_class = SystemDictionary::resolve_or_fail(
  78           from.name(), Handle(THREAD, klass->class_loader()),
  79           Handle(THREAD, klass->protection_domain()), true, CHECK_false);
  80       if (TraceClassResolution) {
  81         Verifier::trace_class_resolution(from_class, klass());
  82       }
  83       return InstanceKlass::cast(from_class)->is_subclass_of(this_class());
  84     }
  85   } else if (is_array() && from.is_array()) {
  86     VerificationType comp_this = get_component(context, CHECK_false);
  87     VerificationType comp_from = from.get_component(context, CHECK_false);
  88     if (!comp_this.is_bogus() && !comp_from.is_bogus()) {
  89       return comp_this.is_component_assignable_from(comp_from, context,
  90                                           from_field_is_protected, CHECK_false);
  91     }
  92   }
  93   return false;
  94 }
  95 
  96 VerificationType VerificationType::get_component(ClassVerifier *context, TRAPS) const {
  97   assert(is_array() && name()->utf8_length() >= 2, "Must be a valid array");
  98   Symbol* component;
  99   switch (name()->byte_at(1)) {
 100     case 'Z': return VerificationType(Boolean);
 101     case 'B': return VerificationType(Byte);
 102     case 'C': return VerificationType(Char);
 103     case 'S': return VerificationType(Short);
 104     case 'I': return VerificationType(Integer);
 105     case 'J': return VerificationType(Long);
 106     case 'F': return VerificationType(Float);
 107     case 'D': return VerificationType(Double);
 108     case '[':
 109       component = context->create_temporary_symbol(