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comparison src/share/vm/classfile/verificationType.cpp @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents 4ee06e614636
children 2373a1f4987c
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
55 // We need check the class hierarchy to check assignability 55 // We need check the class hierarchy to check assignability
56 if (name() == vmSymbols::java_lang_Object()) { 56 if (name() == vmSymbols::java_lang_Object()) {
57 // any object or array is assignable to java.lang.Object 57 // any object or array is assignable to java.lang.Object
58 return true; 58 return true;
59 } 59 }
60 klassOop obj = SystemDictionary::resolve_or_fail( 60 Klass* obj = SystemDictionary::resolve_or_fail(
61 name(), Handle(THREAD, klass->class_loader()), 61 name(), Handle(THREAD, klass->class_loader()),
62 Handle(THREAD, klass->protection_domain()), true, CHECK_false); 62 Handle(THREAD, klass->protection_domain()), true, CHECK_false);
63 KlassHandle this_class(THREAD, obj); 63 KlassHandle this_class(THREAD, obj);
64 64
65 if (this_class->is_interface()) { 65 if (this_class->is_interface()) {
66 // We treat interfaces as java.lang.Object, including 66 // We treat interfaces as java.lang.Object, including
67 // java.lang.Cloneable and java.io.Serializable 67 // java.lang.Cloneable and java.io.Serializable
68 return true; 68 return true;
69 } else if (from.is_object()) { 69 } else if (from.is_object()) {
70 klassOop from_class = SystemDictionary::resolve_or_fail( 70 Klass* from_class = SystemDictionary::resolve_or_fail(
71 from.name(), Handle(THREAD, klass->class_loader()), 71 from.name(), Handle(THREAD, klass->class_loader()),
72 Handle(THREAD, klass->protection_domain()), true, CHECK_false); 72 Handle(THREAD, klass->protection_domain()), true, CHECK_false);
73 return instanceKlass::cast(from_class)->is_subclass_of(this_class()); 73 return InstanceKlass::cast(from_class)->is_subclass_of(this_class());
74 } 74 }
75 } else if (is_array() && from.is_array()) { 75 } else if (is_array() && from.is_array()) {
76 VerificationType comp_this = get_component(context, CHECK_false); 76 VerificationType comp_this = get_component(context, CHECK_false);
77 VerificationType comp_from = from.get_component(context, CHECK_false); 77 VerificationType comp_from = from.get_component(context, CHECK_false);
78 if (!comp_this.is_bogus() && !comp_from.is_bogus()) { 78 if (!comp_this.is_bogus() && !comp_from.is_bogus()) {