--- old/src/share/vm/ci/ciEnv.cpp	2009-12-03 11:54:07.780093463 +0100
+++ new/src/share/vm/ci/ciEnv.cpp	2009-12-03 11:54:07.647861603 +0100
@@ -443,12 +443,11 @@
 // ciEnv::get_klass_by_index_impl
 //
 // Implementation of get_klass_by_index.
-ciKlass* ciEnv::get_klass_by_index_impl(ciInstanceKlass* accessor,
+ciKlass* ciEnv::get_klass_by_index_impl(constantPoolHandle cpool,
                                         int index,
-                                        bool& is_accessible) {
-  assert(accessor->get_instanceKlass()->is_linked(), "must be linked before accessing constant pool");
+                                        bool& is_accessible,
+                                        ciInstanceKlass* accessor) {
   EXCEPTION_CONTEXT;
-  constantPoolHandle cpool(THREAD, accessor->get_instanceKlass()->constants());
   KlassHandle klass (THREAD, constantPoolOopDesc::klass_at_if_loaded(cpool, index));
   symbolHandle klass_name;
   if (klass.is_null()) {
@@ -510,22 +509,21 @@
 // ciEnv::get_klass_by_index
 //
 // Get a klass from the constant pool.
-ciKlass* ciEnv::get_klass_by_index(ciInstanceKlass* accessor,
+ciKlass* ciEnv::get_klass_by_index(constantPoolHandle cpool,
                                    int index,
-                                   bool& is_accessible) {
-  GUARDED_VM_ENTRY(return get_klass_by_index_impl(accessor, index, is_accessible);)
+                                   bool& is_accessible,
+                                   ciInstanceKlass* accessor) {
+  GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
 }
 
 // ------------------------------------------------------------------
 // ciEnv::get_constant_by_index_impl
 //
 // Implementation of get_constant_by_index().
-ciConstant ciEnv::get_constant_by_index_impl(ciInstanceKlass* accessor,
-                                             int index) {
+ciConstant ciEnv::get_constant_by_index_impl(constantPoolHandle cpool,
+                                             int index,
+                                             ciInstanceKlass* accessor) {
   EXCEPTION_CONTEXT;
-  instanceKlass* ik_accessor = accessor->get_instanceKlass();
-  assert(ik_accessor->is_linked(), "must be linked before accessing constant pool");
-  constantPoolOop cpool = ik_accessor->constants();
   constantTag tag = cpool->tag_at(index);
   if (tag.is_int()) {
     return ciConstant(T_INT, (jint)cpool->int_at(index));
@@ -553,7 +551,7 @@
   } else if (tag.is_klass() || tag.is_unresolved_klass()) {
     // 4881222: allow ldc to take a class type
     bool ignore;
-    ciKlass* klass = get_klass_by_index_impl(accessor, index, ignore);
+    ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore, accessor);
     if (HAS_PENDING_EXCEPTION) {
       CLEAR_PENDING_EXCEPTION;
       record_out_of_memory_failure();
@@ -562,6 +560,11 @@
     assert (klass->is_instance_klass() || klass->is_array_klass(),
             "must be an instance or array klass ");
     return ciConstant(T_OBJECT, klass);
+  } else if (tag.is_object()) {
+    oop obj = cpool->object_at(index);
+    assert(obj->is_instance(), "must be an instance");
+    ciObject* ciobj = get_object(obj);
+    return ciConstant(T_OBJECT, ciobj);
   } else {
     ShouldNotReachHere();
     return ciConstant();
@@ -598,9 +601,10 @@
 // Pull a constant out of the constant pool.  How appropriate.
 //
 // Implementation note: this query is currently in no way cached.
-ciConstant ciEnv::get_constant_by_index(ciInstanceKlass* accessor,
-                                        int index) {
-  GUARDED_VM_ENTRY(return get_constant_by_index_impl(accessor, index); )
+ciConstant ciEnv::get_constant_by_index(constantPoolHandle cpool,
+                                        int index,
+                                        ciInstanceKlass* accessor) {
+  GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, index, accessor);)
 }
 
 // ------------------------------------------------------------------
@@ -610,7 +614,7 @@
 //
 // Implementation note: this query is currently in no way cached.
 bool ciEnv::is_unresolved_string(ciInstanceKlass* accessor,
-                                        int index) const {
+                                 int index) const {
   GUARDED_VM_ENTRY(return is_unresolved_string_impl(accessor->get_instanceKlass(), index); )
 }
 
@@ -621,7 +625,7 @@
 //
 // Implementation note: this query is currently in no way cached.
 bool ciEnv::is_unresolved_klass(ciInstanceKlass* accessor,
-                                        int index) const {
+                                int index) const {
   GUARDED_VM_ENTRY(return is_unresolved_klass_impl(accessor->get_instanceKlass(), index); )
 }
 
@@ -702,15 +706,12 @@
 
 // ------------------------------------------------------------------
 // ciEnv::get_method_by_index_impl
-ciMethod* ciEnv::get_method_by_index_impl(ciInstanceKlass* accessor,
-                                     int index, Bytecodes::Code bc) {
-  // Get the method's declared holder.
-
-  assert(accessor->get_instanceKlass()->is_linked(), "must be linked before accessing constant pool");
-  constantPoolHandle cpool = accessor->get_instanceKlass()->constants();
+ciMethod* ciEnv::get_method_by_index_impl(constantPoolHandle cpool,
+                                          int index, Bytecodes::Code bc,
+                                          ciInstanceKlass* accessor) {
   int holder_index = cpool->klass_ref_index_at(index);
   bool holder_is_accessible;
-  ciKlass* holder = get_klass_by_index_impl(accessor, holder_index, holder_is_accessible);
+  ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
   ciInstanceKlass* declared_holder = get_instance_klass_for_declared_method_holder(holder);
 
   // Get the method's name and signature.
@@ -738,11 +739,9 @@
 
 // ------------------------------------------------------------------
 // ciEnv::get_fake_invokedynamic_method_impl
-ciMethod* ciEnv::get_fake_invokedynamic_method_impl(ciInstanceKlass* accessor,
+ciMethod* ciEnv::get_fake_invokedynamic_method_impl(constantPoolHandle cpool,
                                                     int index, Bytecodes::Code bc) {
   assert(bc == Bytecodes::_invokedynamic, "must be invokedynamic");
-  assert(accessor->get_instanceKlass()->is_linked(), "must be linked before accessing constant pool");
-  constantPoolHandle cpool = accessor->get_instanceKlass()->constants();
 
   // Get the CallSite from the constant pool cache.
   ConstantPoolCacheEntry* cpc_entry = cpool->cache()->secondary_entry_at(index);
@@ -789,12 +788,13 @@
 
 // ------------------------------------------------------------------
 // ciEnv::get_method_by_index
-ciMethod* ciEnv::get_method_by_index(ciInstanceKlass* accessor,
-                                     int index, Bytecodes::Code bc) {
+ciMethod* ciEnv::get_method_by_index(constantPoolHandle cpool,
+                                     int index, Bytecodes::Code bc,
+                                     ciInstanceKlass* accessor) {
   if (bc == Bytecodes::_invokedynamic) {
-    GUARDED_VM_ENTRY(return get_fake_invokedynamic_method_impl(accessor, index, bc);)
+    GUARDED_VM_ENTRY(return get_fake_invokedynamic_method_impl(cpool, index, bc);)
   } else {
-    GUARDED_VM_ENTRY(return get_method_by_index_impl(accessor, index, bc);)
+    GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
   }
 }