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This commit is contained in:
Yumin Qi 2013-01-25 13:47:52 -08:00
commit fe8363948e
3 changed files with 46 additions and 30 deletions
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13
hotspot/src/share/vm/prims/jvmtiRedefineClasses.cpp
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@ -1122,6 +1122,8 @@ bool VM_RedefineClasses::merge_constant_pools(constantPoolHandle old_cp,
}
} // end for each old_cp entry
ConstantPool::copy_operands(old_cp, *merge_cp_p, CHECK_0);
// We don't need to sanity check that *merge_cp_length_p is within
// *merge_cp_p bounds since we have the minimum on-entry check above.
(*merge_cp_length_p) = old_i;
@ -1305,8 +1307,12 @@ jvmtiError VM_RedefineClasses::merge_cp_and_rewrite(
_index_map_count = 0;
_index_map_p = new intArray(scratch_cp->length(), -1);
// reference to the cp holder is needed for copy_operands()
merge_cp->set_pool_holder(scratch_class());
bool result = merge_constant_pools(old_cp, scratch_cp, &merge_cp,
&merge_cp_length, THREAD);
merge_cp->set_pool_holder(NULL);
if (!result) {
// The merge can fail due to memory allocation failure or due
// to robustness checks.
@ -2380,13 +2386,14 @@ void VM_RedefineClasses::set_new_constant_pool(
assert(version != 0, "sanity check");
smaller_cp->set_version(version);
// attach klass to new constant pool
// reference to the cp holder is needed for copy_operands()
smaller_cp->set_pool_holder(scratch_class());
scratch_cp->copy_cp_to(1, scratch_cp_length - 1, smaller_cp, 1, THREAD);
scratch_cp = smaller_cp;
// attach new constant pool to klass
scratch_cp->set_pool_holder(scratch_class());
// attach klass to new constant pool
scratch_class->set_constants(scratch_cp());
int i; // for portability