--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java Fri Mar 23 22:34:22 2012 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java Sun Mar 25 18:08:52 2012 -0400
@@ -359,6 +359,12 @@
public static final int innerClassNextOffset = 4;
};
+ public static interface EnclosingMethodAttributeOffset {
+ public static final int enclosing_method_class_index_offset = 0;
+ public static final int enclosing_method_method_index_offset = 1;
+ public static final int enclosing_method_attribute_size = 2;
+ };
+
// refer to compute_modifier_flags in VM code.
public long computeModifierFlags() {
long access = getAccessFlags();
@@ -367,9 +373,14 @@
int length = ( innerClassList == null)? 0 : (int) innerClassList.getLength();
if (length > 0) {
if (Assert.ASSERTS_ENABLED) {
- Assert.that(length % InnerClassAttributeOffset.innerClassNextOffset == 0, "just checking");
+ Assert.that(length % InnerClassAttributeOffset.innerClassNextOffset == 0 ||
+ length % InnerClassAttributeOffset.innerClassNextOffset == EnclosingMethodAttributeOffset.enclosing_method_attribute_size,
+ "just checking");
}
for (int i = 0; i < length; i += InnerClassAttributeOffset.innerClassNextOffset) {
+ if (i == length - EnclosingMethodAttributeOffset.enclosing_method_attribute_size) {
+ break;
+ }
int ioff = innerClassList.getShortAt(i +
InnerClassAttributeOffset.innerClassInnerClassInfoOffset);
// 'ioff' can be zero.
@@ -419,9 +430,14 @@
int length = ( innerClassList == null)? 0 : (int) innerClassList.getLength();
if (length > 0) {
if (Assert.ASSERTS_ENABLED) {
- Assert.that(length % InnerClassAttributeOffset.innerClassNextOffset == 0, "just checking");
+ Assert.that(length % InnerClassAttributeOffset.innerClassNextOffset == 0 ||
+ length % InnerClassAttributeOffset.innerClassNextOffset == EnclosingMethodAttributeOffset.enclosing_method_attribute_size,
+ "just checking");
}
for (int i = 0; i < length; i += InnerClassAttributeOffset.innerClassNextOffset) {
+ if (i == length - EnclosingMethodAttributeOffset.enclosing_method_attribute_size) {
+ break;
+ }
int ioff = innerClassList.getShortAt(i +
InnerClassAttributeOffset.innerClassInnerClassInfoOffset);
// 'ioff' can be zero.
--- a/hotspot/src/share/vm/classfile/classFileParser.cpp Fri Mar 23 22:34:22 2012 -0700
+++ b/hotspot/src/share/vm/classfile/classFileParser.cpp Sun Mar 25 18:08:52 2012 -0400
@@ -2315,13 +2315,32 @@
#define RECOGNIZED_INNER_CLASS_MODIFIERS (JVM_RECOGNIZED_CLASS_MODIFIERS | JVM_ACC_PRIVATE | JVM_ACC_PROTECTED | JVM_ACC_STATIC)
// Return number of classes in the inner classes attribute table
-u2 ClassFileParser::parse_classfile_inner_classes_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS) {
+u2 ClassFileParser::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) {
ClassFileStream* cfs = stream();
- cfs->guarantee_more(2, CHECK_0); // length
- u2 length = cfs->get_u2_fast();
-
- // 4-tuples of shorts [inner_class_info_index, outer_class_info_index, inner_name_index, inner_class_access_flags]
- typeArrayOop ic = oopFactory::new_permanent_shortArray(length*4, CHECK_0);
+ u1* current_mark = cfs->current();
+ u2 length = 0;
+ if (inner_classes_attribute_start != NULL) {
+ cfs->set_current(inner_classes_attribute_start);
+ cfs->guarantee_more(2, CHECK_0); // length
+ length = cfs->get_u2_fast();
+ }
+
+ // 4-tuples of shorts of inner classes data and 2 shorts of enclosing
+ // method data:
+ // [inner_class_info_index,
+ // outer_class_info_index,
+ // inner_name_index,
+ // inner_class_access_flags,
+ // ...
+ // enclosing_method_class_index,
+ // enclosing_method_method_index]
+ int size = length * 4 + (parsed_enclosingmethod_attribute ? 2 : 0);
+ typeArrayOop ic = oopFactory::new_permanent_shortArray(size, CHECK_0);
typeArrayHandle inner_classes(THREAD, ic);
int index = 0;
int cp_size = cp->length();
@@ -2372,8 +2391,8 @@
// 4347400: make sure there's no duplicate entry in the classes array
if (_need_verify && _major_version >= JAVA_1_5_VERSION) {
- for(int i = 0; i < inner_classes->length(); i += 4) {
- for(int j = i + 4; j < inner_classes->length(); j += 4) {
+ for(int i = 0; i < length * 4; i += 4) {
+ for(int j = i + 4; j < length * 4; j += 4) {
guarantee_property((inner_classes->ushort_at(i) != inner_classes->ushort_at(j) ||
inner_classes->ushort_at(i+1) != inner_classes->ushort_at(j+1) ||
inner_classes->ushort_at(i+2) != inner_classes->ushort_at(j+2) ||
@@ -2384,8 +2403,19 @@
}
}
+ // Set EnclosingMethod class and method indexes.
+ if (parsed_enclosingmethod_attribute) {
+ inner_classes->short_at_put(index++, enclosing_method_class_index);
+ inner_classes->short_at_put(index++, enclosing_method_method_index);
+ }
+ assert(index == size, "wrong size");
+
// Update instanceKlass with inner class info.
k->set_inner_classes(inner_classes());
+
+ // Restore buffer's current position.
+ cfs->set_current(current_mark);
+
return length;
}
@@ -2490,6 +2520,10 @@
int runtime_visible_annotations_length = 0;
u1* runtime_invisible_annotations = NULL;
int runtime_invisible_annotations_length = 0;
+ u1* inner_classes_attribute_start = NULL;
+ u4 inner_classes_attribute_length = 0;
+ u2 enclosing_method_class_index = 0;
+ u2 enclosing_method_method_index = 0;
// Iterate over attributes
while (attributes_count--) {
cfs->guarantee_more(6, CHECK); // attribute_name_index, attribute_length
@@ -2522,11 +2556,9 @@
} else {
parsed_innerclasses_attribute = true;
}
- u2 num_of_classes = parse_classfile_inner_classes_attribute(cp, k, CHECK);
- if (_need_verify && _major_version >= JAVA_1_5_VERSION) {
- guarantee_property(attribute_length == sizeof(num_of_classes) + 4 * sizeof(u2) * num_of_classes,
- "Wrong InnerClasses attribute length in class file %s", CHECK);
- }
+ inner_classes_attribute_start = cfs->get_u1_buffer();
+ inner_classes_attribute_length = attribute_length;
+ cfs->skip_u1(inner_classes_attribute_length, CHECK);
} else if (tag == vmSymbols::tag_synthetic()) {
// Check for Synthetic tag
// Shouldn't we check that the synthetic flags wasn't already set? - not required in spec
@@ -2568,22 +2600,21 @@
parsed_enclosingmethod_attribute = true;
}
cfs->guarantee_more(4, CHECK); // class_index, method_index
- u2 class_index = cfs->get_u2_fast();
- u2 method_index = cfs->get_u2_fast();
- if (class_index == 0) {
+ enclosing_method_class_index = cfs->get_u2_fast();
+ enclosing_method_method_index = cfs->get_u2_fast();
+ if (enclosing_method_class_index == 0) {
classfile_parse_error("Invalid class index in EnclosingMethod attribute in class file %s", CHECK);
}
// Validate the constant pool indices and types
- if (!cp->is_within_bounds(class_index) ||
- !is_klass_reference(cp, class_index)) {
+ if (!cp->is_within_bounds(enclosing_method_class_index) ||
+ !is_klass_reference(cp, enclosing_method_class_index)) {
classfile_parse_error("Invalid or out-of-bounds class index in EnclosingMethod attribute in class file %s", CHECK);
}
- if (method_index != 0 &&
- (!cp->is_within_bounds(method_index) ||
- !cp->tag_at(method_index).is_name_and_type())) {
+ if (enclosing_method_method_index != 0 &&
+ (!cp->is_within_bounds(enclosing_method_method_index) ||
+ !cp->tag_at(enclosing_method_method_index).is_name_and_type())) {
classfile_parse_error("Invalid or out-of-bounds method index in EnclosingMethod attribute in class file %s", CHECK);
}
- k->set_enclosing_method_indices(class_index, method_index);
} else if (tag == vmSymbols::tag_bootstrap_methods() &&
_major_version >= Verifier::INVOKEDYNAMIC_MAJOR_VERSION) {
if (parsed_bootstrap_methods_attribute)
@@ -2606,6 +2637,20 @@
CHECK);
k->set_class_annotations(annotations());
+ if (parsed_innerclasses_attribute || parsed_enclosingmethod_attribute) {
+ u2 num_of_classes = parse_classfile_inner_classes_attribute(
+ inner_classes_attribute_start,
+ parsed_innerclasses_attribute,
+ enclosing_method_class_index,
+ enclosing_method_method_index,
+ cp, k, 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,
+ "Wrong InnerClasses attribute length in class file %s", CHECK);
+ }
+ }
+
if (_max_bootstrap_specifier_index >= 0) {
guarantee_property(parsed_bootstrap_methods_attribute,
"Missing BootstrapMethods attribute in class file %s", CHECK);
--- a/hotspot/src/share/vm/classfile/classFileParser.hpp Fri Mar 23 22:34:22 2012 -0700
+++ b/hotspot/src/share/vm/classfile/classFileParser.hpp Sun Mar 25 18:08:52 2012 -0400
@@ -130,7 +130,11 @@
void parse_classfile_sourcefile_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS);
void parse_classfile_source_debug_extension_attribute(constantPoolHandle cp,
instanceKlassHandle k, int length, TRAPS);
- u2 parse_classfile_inner_classes_attribute(constantPoolHandle cp,
+ 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);
void parse_classfile_attributes(constantPoolHandle cp, instanceKlassHandle k, TRAPS);
void parse_classfile_synthetic_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS);
--- a/hotspot/src/share/vm/memory/dump.cpp Fri Mar 23 22:34:22 2012 -0700
+++ b/hotspot/src/share/vm/memory/dump.cpp Sun Mar 25 18:08:52 2012 -0400
@@ -297,16 +297,14 @@
if (obj->blueprint()->oop_is_instanceKlass()) {
instanceKlass* ik = instanceKlass::cast((klassOop)obj);
- typeArrayOop inner_classes = ik->inner_classes();
- if (inner_classes != NULL) {
- constantPoolOop constants = ik->constants();
- int n = inner_classes->length();
- for (int i = 0; i < n; i += instanceKlass::inner_class_next_offset) {
- int ioff = i + instanceKlass::inner_class_inner_name_offset;
- int index = inner_classes->ushort_at(ioff);
- if (index != 0) {
- _closure->do_symbol(constants->symbol_at_addr(index));
- }
+ instanceKlassHandle ik_h((klassOop)obj);
+ InnerClassesIterator iter(ik_h);
+ constantPoolOop constants = ik->constants();
+ for (; !iter.done(); iter.next()) {
+ int index = iter.inner_name_index();
+
+ if (index != 0) {
+ _closure->do_symbol(constants->symbol_at_addr(index));
}
}
}
--- a/hotspot/src/share/vm/oops/instanceKlass.cpp Fri Mar 23 22:34:22 2012 -0700
+++ b/hotspot/src/share/vm/oops/instanceKlass.cpp Sun Mar 25 18:08:52 2012 -0400
@@ -1133,6 +1133,36 @@
return probe;
}
+u2 instanceKlass::enclosing_method_data(int offset) {
+ typeArrayOop inner_class_list = inner_classes();
+ if (inner_class_list == NULL) {
+ return 0;
+ }
+ int length = inner_class_list->length();
+ if (length % inner_class_next_offset == 0) {
+ return 0;
+ } else {
+ int index = length - enclosing_method_attribute_size;
+ typeArrayHandle inner_class_list_h(inner_class_list);
+ assert(offset < enclosing_method_attribute_size, "invalid offset");
+ return inner_class_list_h->ushort_at(index + offset);
+ }
+}
+
+void instanceKlass::set_enclosing_method_indices(u2 class_index,
+ u2 method_index) {
+ typeArrayOop inner_class_list = inner_classes();
+ assert (inner_class_list != NULL, "_inner_classes list is not set up");
+ int length = inner_class_list->length();
+ if (length % inner_class_next_offset == enclosing_method_attribute_size) {
+ int index = length - enclosing_method_attribute_size;
+ typeArrayHandle inner_class_list_h(inner_class_list);
+ inner_class_list_h->ushort_at_put(
+ index + enclosing_method_class_index_offset, class_index);
+ inner_class_list_h->ushort_at_put(
+ index + enclosing_method_method_index_offset, method_index);
+ }
+}
// Lookup or create a jmethodID.
// This code is called by the VMThread and JavaThreads so the
@@ -2107,28 +2137,21 @@
jint access = access_flags().as_int();
// But check if it happens to be member class.
- typeArrayOop inner_class_list = inner_classes();
- int length = (inner_class_list == NULL) ? 0 : inner_class_list->length();
- assert (length % instanceKlass::inner_class_next_offset == 0, "just checking");
- if (length > 0) {
- typeArrayHandle inner_class_list_h(THREAD, inner_class_list);
- instanceKlassHandle ik(THREAD, k);
- for (int i = 0; i < length; i += instanceKlass::inner_class_next_offset) {
- int ioff = inner_class_list_h->ushort_at(
- i + instanceKlass::inner_class_inner_class_info_offset);
-
- // Inner class attribute can be zero, skip it.
- // Strange but true: JVM spec. allows null inner class refs.
- if (ioff == 0) continue;
-
- // only look at classes that are already loaded
- // since we are looking for the flags for our self.
- Symbol* inner_name = ik->constants()->klass_name_at(ioff);
- if ((ik->name() == inner_name)) {
- // This is really a member class.
- access = inner_class_list_h->ushort_at(i + instanceKlass::inner_class_access_flags_offset);
- break;
- }
+ instanceKlassHandle ik(THREAD, k);
+ InnerClassesIterator iter(ik);
+ for (; !iter.done(); iter.next()) {
+ int ioff = iter.inner_class_info_index();
+ // Inner class attribute can be zero, skip it.
+ // Strange but true: JVM spec. allows null inner class refs.
+ if (ioff == 0) continue;
+
+ // only look at classes that are already loaded
+ // since we are looking for the flags for our self.
+ Symbol* inner_name = ik->constants()->klass_name_at(ioff);
+ if ((ik->name() == inner_name)) {
+ // This is really a member class.
+ access = iter.inner_access_flags();
+ break;
}
}
// Remember to strip ACC_SUPER bit
--- a/hotspot/src/share/vm/oops/instanceKlass.hpp Fri Mar 23 22:34:22 2012 -0700
+++ b/hotspot/src/share/vm/oops/instanceKlass.hpp Sun Mar 25 18:08:52 2012 -0400
@@ -188,7 +188,17 @@
klassOop _host_klass;
// Class signers.
objArrayOop _signers;
- // inner_classes attribute.
+ // The InnerClasses attribute and EnclosingMethod attribute. The
+ // _inner_classes is an array of shorts. If the class has InnerClasses
+ // attribute, then the _inner_classes array begins with 4-tuples of shorts
+ // [inner_class_info_index, outer_class_info_index,
+ // inner_name_index, inner_class_access_flags] for the InnerClasses
+ // attribute. If the EnclosingMethod attribute exists, it occupies the
+ // last two shorts [class_index, method_index] of the array. If only
+ // the InnerClasses attribute exists, the _inner_classes array length is
+ // number_of_inner_classes * 4. If the class has both InnerClasses
+ // and EnclosingMethod attributes the _inner_classes array length is
+ // number_of_inner_classes * 4 + enclosing_method_attribute_size.
typeArrayOop _inner_classes;
// Implementors of this interface (not valid if it overflows)
klassOop _implementors[implementors_limit];
@@ -251,8 +261,6 @@
// Array of interesting part(s) of the previous version(s) of this
// instanceKlass. See PreviousVersionWalker below.
GrowableArray<PreviousVersionNode *>* _previous_versions;
- u2 _enclosing_method_class_index; // Constant pool index for class of enclosing method, or 0 if none
- u2 _enclosing_method_method_index; // Constant pool index for name and type of enclosing method, or 0 if none
// JVMTI fields can be moved to their own structure - see 6315920
unsigned char * _cached_class_file_bytes; // JVMTI: cached class file, before retransformable agent modified it in CFLH
jint _cached_class_file_len; // JVMTI: length of above
@@ -351,6 +359,12 @@
inner_class_next_offset = 4
};
+ enum EnclosingMethodAttributeOffset {
+ enclosing_method_class_index_offset = 0,
+ enclosing_method_method_index_offset = 1,
+ enclosing_method_attribute_size = 2
+ };
+
// method override check
bool is_override(methodHandle super_method, Handle targetclassloader, Symbol* targetclassname, TRAPS);
@@ -533,11 +547,15 @@
Symbol* generic_signature() const { return _generic_signature; }
void set_generic_signature(Symbol* sig) { _generic_signature = sig; }
- u2 enclosing_method_class_index() const { return _enclosing_method_class_index; }
- u2 enclosing_method_method_index() const { return _enclosing_method_method_index; }
+ u2 enclosing_method_data(int offset);
+ u2 enclosing_method_class_index() {
+ return enclosing_method_data(enclosing_method_class_index_offset);
+ }
+ u2 enclosing_method_method_index() {
+ return enclosing_method_data(enclosing_method_method_index_offset);
+ }
void set_enclosing_method_indices(u2 class_index,
- u2 method_index) { _enclosing_method_class_index = class_index;
- _enclosing_method_method_index = method_index; }
+ u2 method_index);
// jmethodID support
static jmethodID get_jmethod_id(instanceKlassHandle ik_h,
@@ -1053,4 +1071,83 @@
nmethod* get_nmethod() { return _nmethod; }
};
+// An iterator that's used to access the inner classes indices in the
+// instanceKlass::_inner_classes array.
+class InnerClassesIterator : public StackObj {
+ private:
+ typeArrayHandle _inner_classes;
+ int _length;
+ int _idx;
+ public:
+
+ InnerClassesIterator(instanceKlassHandle k) {
+ _inner_classes = k->inner_classes();
+ if (k->inner_classes() != NULL) {
+ _length = _inner_classes->length();
+ // The inner class array's length should be the multiple of
+ // inner_class_next_offset if it only contains the InnerClasses
+ // attribute data, or it should be
+ // n*inner_class_next_offset+enclosing_method_attribute_size
+ // if it also contains the EnclosingMethod data.
+ assert((_length % instanceKlass::inner_class_next_offset == 0 ||
+ _length % instanceKlass::inner_class_next_offset == instanceKlass::enclosing_method_attribute_size),
+ "just checking");
+ // Remove the enclosing_method portion if exists.
+ if (_length % instanceKlass::inner_class_next_offset == instanceKlass::enclosing_method_attribute_size) {
+ _length -= instanceKlass::enclosing_method_attribute_size;
+ }
+ } else {
+ _length = 0;
+ }
+ _idx = 0;
+ }
+
+ int length() const {
+ return _length;
+ }
+
+ void next() {
+ _idx += instanceKlass::inner_class_next_offset;
+ }
+
+ bool done() const {
+ return (_idx >= _length);
+ }
+
+ u2 inner_class_info_index() const {
+ return _inner_classes->ushort_at(
+ _idx + instanceKlass::inner_class_inner_class_info_offset);
+ }
+
+ void set_inner_class_info_index(u2 index) {
+ _inner_classes->ushort_at_put(
+ _idx + instanceKlass::inner_class_inner_class_info_offset, index);
+ }
+
+ u2 outer_class_info_index() const {
+ return _inner_classes->ushort_at(
+ _idx + instanceKlass::inner_class_outer_class_info_offset);
+ }
+
+ void set_outer_class_info_index(u2 index) {
+ _inner_classes->ushort_at_put(
+ _idx + instanceKlass::inner_class_outer_class_info_offset, index);
+ }
+
+ u2 inner_name_index() const {
+ return _inner_classes->ushort_at(
+ _idx + instanceKlass::inner_class_inner_name_offset);
+ }
+
+ void set_inner_name_index(u2 index) {
+ _inner_classes->ushort_at_put(
+ _idx + instanceKlass::inner_class_inner_name_offset, index);
+ }
+
+ u2 inner_access_flags() const {
+ return _inner_classes->ushort_at(
+ _idx + instanceKlass::inner_class_access_flags_offset);
+ }
+};
+
#endif // SHARE_VM_OOPS_INSTANCEKLASS_HPP
--- a/hotspot/src/share/vm/oops/instanceKlassKlass.cpp Fri Mar 23 22:34:22 2012 -0700
+++ b/hotspot/src/share/vm/oops/instanceKlassKlass.cpp Sun Mar 25 18:08:52 2012 -0400
@@ -416,7 +416,6 @@
ik->set_methods_annotations(NULL);
ik->set_methods_parameter_annotations(NULL);
ik->set_methods_default_annotations(NULL);
- ik->set_enclosing_method_indices(0, 0);
ik->set_jvmti_cached_class_field_map(NULL);
ik->set_initial_method_idnum(0);
assert(k()->is_parsable(), "should be parsable here.");
--- a/hotspot/src/share/vm/prims/jvm.cpp Fri Mar 23 22:34:22 2012 -0700
+++ b/hotspot/src/share/vm/prims/jvm.cpp Sun Mar 25 18:08:52 2012 -0400
@@ -1301,9 +1301,6 @@
// Inner class reflection ///////////////////////////////////////////////////////////////////////////////
JVM_ENTRY(jobjectArray, JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass))
- const int inner_class_info_index = 0;
- const int outer_class_info_index = 1;
-
JvmtiVMObjectAllocEventCollector oam;
// ofClass is a reference to a java_lang_Class object. The mirror object
// of an instanceKlass
@@ -1315,26 +1312,26 @@
}
instanceKlassHandle k(thread, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(ofClass)));
-
- if (k->inner_classes()->length() == 0) {
+ InnerClassesIterator iter(k);
+
+ if (iter.length() == 0) {
// Neither an inner nor outer class
oop result = oopFactory::new_objArray(SystemDictionary::Class_klass(), 0, CHECK_NULL);
return (jobjectArray)JNIHandles::make_local(env, result);
}
// find inner class info
- typeArrayHandle icls(thread, k->inner_classes());
constantPoolHandle cp(thread, k->constants());
- int length = icls->length();
+ int length = iter.length();
// Allocate temp. result array
objArrayOop r = oopFactory::new_objArray(SystemDictionary::Class_klass(), length/4, CHECK_NULL);
objArrayHandle result (THREAD, r);
int members = 0;
- for(int i = 0; i < length; i += 4) {
- int ioff = icls->ushort_at(i + inner_class_info_index);
- int ooff = icls->ushort_at(i + outer_class_info_index);
+ for (; !iter.done(); iter.next()) {
+ int ioff = iter.inner_class_info_index();
+ int ooff = iter.outer_class_info_index();
if (ioff != 0 && ooff != 0) {
// Check to see if the name matches the class we're looking for
@@ -1392,17 +1389,13 @@
bool* inner_is_member,
TRAPS) {
Thread* thread = THREAD;
- const int inner_class_info_index = inner_class_inner_class_info_offset;
- const int outer_class_info_index = inner_class_outer_class_info_offset;
-
- if (k->inner_classes()->length() == 0) {
+ InnerClassesIterator iter(k);
+ if (iter.length() == 0) {
// No inner class info => no declaring class
return NULL;
}
- typeArrayHandle i_icls(thread, k->inner_classes());
constantPoolHandle i_cp(thread, k->constants());
- int i_length = i_icls->length();
bool found = false;
klassOop ok;
@@ -1410,10 +1403,10 @@
*inner_is_member = false;
// Find inner_klass attribute
- for (int i = 0; i < i_length && !found; i += inner_class_next_offset) {
- int ioff = i_icls->ushort_at(i + inner_class_info_index);
- int ooff = i_icls->ushort_at(i + outer_class_info_index);
- int noff = i_icls->ushort_at(i + inner_class_inner_name_offset);
+ for (; !iter.done() && !found; iter.next()) {
+ int ioff = iter.inner_class_info_index();
+ int ooff = iter.outer_class_info_index();
+ int noff = iter.inner_name_index();
if (ioff != 0) {
// Check to see if the name matches the class we're looking for
// before attempting to find the class.
--- a/hotspot/src/share/vm/prims/jvmtiClassFileReconstituter.cpp Fri Mar 23 22:34:22 2012 -0700
+++ b/hotspot/src/share/vm/prims/jvmtiClassFileReconstituter.cpp Sun Mar 25 18:08:52 2012 -0400
@@ -292,8 +292,8 @@
// Compute the number of entries in the InnerClasses attribute
u2 JvmtiClassFileReconstituter::inner_classes_attribute_length() {
- typeArrayOop inner_class_list = ikh()->inner_classes();
- return (inner_class_list == NULL) ? 0 : inner_class_list->length();
+ InnerClassesIterator iter(ikh());
+ return iter.length();
}
// Write an annotation attribute. The VM stores them in raw form, so all we need
@@ -324,26 +324,20 @@
// JVMSpec| } classes[number_of_classes];
// JVMSpec| }
void JvmtiClassFileReconstituter::write_inner_classes_attribute(int length) {
- typeArrayOop inner_class_list = ikh()->inner_classes();
- guarantee(inner_class_list != NULL && inner_class_list->length() == length,
+ InnerClassesIterator iter(ikh());
+ guarantee(iter.length() != 0 && iter.length() == length,
"caller must check");
- typeArrayHandle inner_class_list_h(thread(), inner_class_list);
- assert (length % instanceKlass::inner_class_next_offset == 0, "just checking");
u2 entry_count = length / instanceKlass::inner_class_next_offset;
u4 size = 2 + entry_count * (2+2+2+2);
write_attribute_name_index("InnerClasses");
write_u4(size);
write_u2(entry_count);
- for (int i = 0; i < length; i += instanceKlass::inner_class_next_offset) {
- write_u2(inner_class_list_h->ushort_at(
- i + instanceKlass::inner_class_inner_class_info_offset));
- write_u2(inner_class_list_h->ushort_at(
- i + instanceKlass::inner_class_outer_class_info_offset));
- write_u2(inner_class_list_h->ushort_at(
- i + instanceKlass::inner_class_inner_name_offset));
- write_u2(inner_class_list_h->ushort_at(
- i + instanceKlass::inner_class_access_flags_offset));
+ for (; !iter.done(); iter.next()) {
+ write_u2(iter.inner_class_info_index());
+ write_u2(iter.outer_class_info_index());
+ write_u2(iter.inner_name_index());
+ write_u2(iter.inner_access_flags());
}
}
--- a/hotspot/src/share/vm/prims/jvmtiRedefineClasses.cpp Fri Mar 23 22:34:22 2012 -0700
+++ b/hotspot/src/share/vm/prims/jvmtiRedefineClasses.cpp Sun Mar 25 18:08:52 2012 -0400
@@ -2400,44 +2400,33 @@
// new constant indices as needed. The inner classes info is a
// quadruple:
// (inner_class_info, outer_class_info, inner_name, inner_access_flags)
- typeArrayOop inner_class_list = scratch_class->inner_classes();
- int icl_length = (inner_class_list == NULL) ? 0 : inner_class_list->length();
- if (icl_length > 0) {
- typeArrayHandle inner_class_list_h(THREAD, inner_class_list);
- for (int i = 0; i < icl_length;
- i += instanceKlass::inner_class_next_offset) {
- int cur_index = inner_class_list_h->ushort_at(i
- + instanceKlass::inner_class_inner_class_info_offset);
- if (cur_index == 0) {
- continue; // JVM spec. allows null inner class refs so skip it
- }
- int new_index = find_new_index(cur_index);
- if (new_index != 0) {
- RC_TRACE_WITH_THREAD(0x00080000, THREAD,
- ("inner_class_info change: %d to %d", cur_index, new_index));
- inner_class_list_h->ushort_at_put(i
- + instanceKlass::inner_class_inner_class_info_offset, new_index);
- }
- cur_index = inner_class_list_h->ushort_at(i
- + instanceKlass::inner_class_outer_class_info_offset);
- new_index = find_new_index(cur_index);
- if (new_index != 0) {
- RC_TRACE_WITH_THREAD(0x00080000, THREAD,
- ("outer_class_info change: %d to %d", cur_index, new_index));
- inner_class_list_h->ushort_at_put(i
- + instanceKlass::inner_class_outer_class_info_offset, new_index);
- }
- cur_index = inner_class_list_h->ushort_at(i
- + instanceKlass::inner_class_inner_name_offset);
- new_index = find_new_index(cur_index);
- if (new_index != 0) {
- RC_TRACE_WITH_THREAD(0x00080000, THREAD,
- ("inner_name change: %d to %d", cur_index, new_index));
- inner_class_list_h->ushort_at_put(i
- + instanceKlass::inner_class_inner_name_offset, new_index);
- }
- } // end for each inner class
- } // end if we have inner classes
+ InnerClassesIterator iter(scratch_class);
+ for (; !iter.done(); iter.next()) {
+ int cur_index = iter.inner_class_info_index();
+ if (cur_index == 0) {
+ continue; // JVM spec. allows null inner class refs so skip it
+ }
+ int new_index = find_new_index(cur_index);
+ if (new_index != 0) {
+ RC_TRACE_WITH_THREAD(0x00080000, THREAD,
+ ("inner_class_info change: %d to %d", cur_index, new_index));
+ iter.set_inner_class_info_index(new_index);
+ }
+ cur_index = iter.outer_class_info_index();
+ new_index = find_new_index(cur_index);
+ if (new_index != 0) {
+ RC_TRACE_WITH_THREAD(0x00080000, THREAD,
+ ("outer_class_info change: %d to %d", cur_index, new_index));
+ iter.set_outer_class_info_index(new_index);
+ }
+ cur_index = iter.inner_name_index();
+ new_index = find_new_index(cur_index);
+ if (new_index != 0) {
+ RC_TRACE_WITH_THREAD(0x00080000, THREAD,
+ ("inner_name change: %d to %d", cur_index, new_index));
+ iter.set_inner_name_index(new_index);
+ }
+ } // end for each inner class
// Attach each method in klass to the new constant pool and update
// to use new constant pool indices as needed:
--- a/hotspot/src/share/vm/runtime/reflection.cpp Fri Mar 23 22:34:22 2012 -0700
+++ b/hotspot/src/share/vm/runtime/reflection.cpp Sun Mar 25 18:08:52 2012 -0400
@@ -591,14 +591,11 @@
// Caller is responsible for figuring out in advance which case must be true.
void Reflection::check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner,
bool inner_is_member, TRAPS) {
- const int inner_class_info_index = 0;
- const int outer_class_info_index = 1;
-
- typeArrayHandle icls (THREAD, outer->inner_classes());
+ InnerClassesIterator iter(outer);
constantPoolHandle cp (THREAD, outer->constants());
- for(int i = 0; i < icls->length(); i += 4) {
- int ioff = icls->ushort_at(i + inner_class_info_index);
- int ooff = icls->ushort_at(i + outer_class_info_index);
+ for (; !iter.done(); iter.next()) {
+ int ioff = iter.inner_class_info_index();
+ int ooff = iter.outer_class_info_index();
if (inner_is_member && ioff != 0 && ooff != 0) {
klassOop o = cp->klass_at(ooff, CHECK);