--- a/hotspot/src/share/vm/c1/c1_Runtime1.cpp	Tue Mar 22 10:43:58 2016 +0000
+++ b/hotspot/src/share/vm/c1/c1_Runtime1.cpp	Tue Mar 22 17:04:25 2016 +0000
@@ -335,6 +335,7 @@
   NOT_PRODUCT(_new_instance_slowcase_cnt++;)
 
   assert(klass->is_klass(), "not a class");
+  Handle holder(THREAD, klass->klass_holder()); // keep the klass alive
   instanceKlassHandle h(thread, klass);
   h->check_valid_for_instantiation(true, CHECK);
   // make sure klass is initialized
@@ -370,6 +371,7 @@
   //       anymore after new_objArray() and no GC can happen before.
   //       (This may have to change if this code changes!)
   assert(array_klass->is_klass(), "not a class");
+  Handle holder(THREAD, array_klass->klass_holder()); // keep the klass alive
   Klass* elem_klass = ObjArrayKlass::cast(array_klass)->element_klass();
   objArrayOop obj = oopFactory::new_objArray(elem_klass, length, CHECK);
   thread->set_vm_result(obj);
@@ -386,6 +388,7 @@
 
   assert(klass->is_klass(), "not a class");
   assert(rank >= 1, "rank must be nonzero");
+  Handle holder(THREAD, klass->klass_holder()); // keep the klass alive
   oop obj = ArrayKlass::cast(klass)->multi_allocate(rank, dims, CHECK);
   thread->set_vm_result(obj);
 JRT_END