diff --git a/src/hotspot/share/jvmci/jvmciEnv.cpp b/src/hotspot/share/jvmci/jvmciEnv.cpp
index 8c9facf8489..851ead247f1 100644
--- a/src/hotspot/share/jvmci/jvmciEnv.cpp
+++ b/src/hotspot/share/jvmci/jvmciEnv.cpp
@@ -1463,8 +1463,7 @@ JVMCIPrimitiveArray JVMCIEnv::new_byteArray(int length, JVMCI_TRAPS) {
 JVMCIObjectArray JVMCIEnv::new_byte_array_array(int length, JVMCI_TRAPS) {
   JavaThread* THREAD = JavaThread::current(); // For exception macros.
   if (is_hotspot()) {
-    Klass* byteArrayArrayKlass = TypeArrayKlass::cast(Universe::byteArrayKlass())->array_klass(CHECK_(JVMCIObject()));
-    objArrayOop result = ObjArrayKlass::cast(byteArrayArrayKlass) ->allocate(length, CHECK_(JVMCIObject()));
+    objArrayOop result = oopFactory::new_objArray(Universe::byteArrayKlass(), length, CHECK_(JVMCIObject()));
     return wrap(result);
   } else {
     JNIAccessMark jni(this, THREAD);
diff --git a/src/hotspot/share/memory/oopFactory.cpp b/src/hotspot/share/memory/oopFactory.cpp
index 949b4fe134b..b2a468d3a23 100644
--- a/src/hotspot/share/memory/oopFactory.cpp
+++ b/src/hotspot/share/memory/oopFactory.cpp
@@ -40,41 +40,41 @@
 #include "utilities/utf8.hpp"
 
 typeArrayOop oopFactory::new_boolArray(int length, TRAPS) {
-  return Universe::boolArrayKlass()->allocate(length, THREAD);
+  return Universe::boolArrayKlass()->allocate_instance(length, THREAD);
 }
 
 typeArrayOop oopFactory::new_charArray(int length, TRAPS) {
-  return Universe::charArrayKlass()->allocate(length, THREAD);
+  return Universe::charArrayKlass()->allocate_instance(length, THREAD);
 }
 
 typeArrayOop oopFactory::new_floatArray(int length, TRAPS) {
-  return Universe::floatArrayKlass()->allocate(length, THREAD);
+  return Universe::floatArrayKlass()->allocate_instance(length, THREAD);
 }
 
 typeArrayOop oopFactory::new_doubleArray(int length, TRAPS) {
-  return Universe::doubleArrayKlass()->allocate(length, THREAD);
+  return Universe::doubleArrayKlass()->allocate_instance(length, THREAD);
 }
 
 typeArrayOop oopFactory::new_byteArray(int length, TRAPS) {
-  return Universe::byteArrayKlass()->allocate(length, THREAD);
+  return Universe::byteArrayKlass()->allocate_instance(length, THREAD);
 }
 
 typeArrayOop oopFactory::new_shortArray(int length, TRAPS) {
-  return Universe::shortArrayKlass()->allocate(length, THREAD);
+  return Universe::shortArrayKlass()->allocate_instance(length, THREAD);
 }
 
 typeArrayOop oopFactory::new_intArray(int length, TRAPS) {
-  return Universe::intArrayKlass()->allocate(length, THREAD);
+  return Universe::intArrayKlass()->allocate_instance(length, THREAD);
 }
 
 typeArrayOop oopFactory::new_longArray(int length, TRAPS) {
-  return Universe::longArrayKlass()->allocate(length, THREAD);
+  return Universe::longArrayKlass()->allocate_instance(length, THREAD);
 }
 
 // create java.lang.Object[]
 objArrayOop oopFactory::new_objectArray(int length, TRAPS)  {
   assert(Universe::objectArrayKlass() != nullptr, "Too early?");
-  return Universe::objectArrayKlass()->allocate(length, THREAD);
+  return Universe::objectArrayKlass()->allocate_instance(length, THREAD);
 }
 
 typeArrayOop oopFactory::new_charArray(const char* utf8_str, TRAPS) {
@@ -88,7 +88,7 @@ typeArrayOop oopFactory::new_charArray(const char* utf8_str, TRAPS) {
 
 typeArrayOop oopFactory::new_typeArray(BasicType type, int length, TRAPS) {
   TypeArrayKlass* klass = Universe::typeArrayKlass(type);
-  return klass->allocate(length, THREAD);
+  return klass->allocate_instance(length, THREAD);
 }
 
 // Create a Java array that points to Symbol.
diff --git a/src/hotspot/share/oops/objArrayKlass.cpp b/src/hotspot/share/oops/objArrayKlass.cpp
index 7af6b963052..e1fcc25f150 100644
--- a/src/hotspot/share/oops/objArrayKlass.cpp
+++ b/src/hotspot/share/oops/objArrayKlass.cpp
@@ -44,7 +44,7 @@
 #include "runtime/mutexLocker.hpp"
 #include "utilities/macros.hpp"
 
-ObjArrayKlass* ObjArrayKlass::allocate(ClassLoaderData* loader_data, int n, Klass* k, Symbol* name, TRAPS) {
+ObjArrayKlass* ObjArrayKlass::allocate_klass(ClassLoaderData* loader_data, int n, Klass* k, Symbol* name, TRAPS) {
   assert(ObjArrayKlass::header_size() <= InstanceKlass::header_size(),
       "array klasses must be same size as InstanceKlass");
 
@@ -100,7 +100,7 @@ ObjArrayKlass* ObjArrayKlass::allocate_objArray_klass(ClassLoaderData* loader_da
   }
 
   // Initialize instance variables
-  ObjArrayKlass* oak = ObjArrayKlass::allocate(loader_data, n, element_klass, name, CHECK_NULL);
+  ObjArrayKlass* oak = ObjArrayKlass::allocate_klass(loader_data, n, element_klass, name, CHECK_NULL);
 
   ModuleEntry* module = oak->module();
   assert(module != nullptr, "No module entry for array");
@@ -149,7 +149,7 @@ size_t ObjArrayKlass::oop_size(oop obj) const {
   return objArrayOop(obj)->object_size();
 }
 
-objArrayOop ObjArrayKlass::allocate(int length, TRAPS) {
+objArrayOop ObjArrayKlass::allocate_instance(int length, TRAPS) {
   check_array_allocation_length(length, arrayOopDesc::max_array_length(T_OBJECT), CHECK_NULL);
   size_t size = objArrayOopDesc::object_size(length);
   return (objArrayOop)Universe::heap()->array_allocate(this, size, length,
@@ -160,7 +160,7 @@ oop ObjArrayKlass::multi_allocate(int rank, jint* sizes, TRAPS) {
   int length = *sizes;
   ArrayKlass* ld_klass = lower_dimension();
   // If length < 0 allocate will throw an exception.
-  objArrayOop array = allocate(length, CHECK_NULL);
+  objArrayOop array = allocate_instance(length, CHECK_NULL);
   objArrayHandle h_array (THREAD, array);
   if (rank > 1) {
     if (length != 0) {
diff --git a/src/hotspot/share/oops/objArrayKlass.hpp b/src/hotspot/share/oops/objArrayKlass.hpp
index c44c8d28f62..11fe4f2a521 100644
--- a/src/hotspot/share/oops/objArrayKlass.hpp
+++ b/src/hotspot/share/oops/objArrayKlass.hpp
@@ -33,8 +33,10 @@ class ClassLoaderData;
 // ObjArrayKlass is the klass for objArrays
 
 class ObjArrayKlass : public ArrayKlass {
-  friend class VMStructs;
+  friend class Deoptimization;
   friend class JVMCIVMStructs;
+  friend class oopFactory;
+  friend class VMStructs;
 
  public:
   static const KlassKind Kind = ObjArrayKlassKind;
@@ -47,7 +49,9 @@ class ObjArrayKlass : public ArrayKlass {
 
   // Constructor
   ObjArrayKlass(int n, Klass* element_klass, Symbol* name);
-  static ObjArrayKlass* allocate(ClassLoaderData* loader_data, int n, Klass* k, Symbol* name, TRAPS);
+  static ObjArrayKlass* allocate_klass(ClassLoaderData* loader_data, int n, Klass* k, Symbol* name, TRAPS);
+
+  objArrayOop allocate_instance(int length, TRAPS);
  public:
   // For dummy objects
   ObjArrayKlass() {}
@@ -78,7 +82,6 @@ class ObjArrayKlass : public ArrayKlass {
   static ObjArrayKlass* allocate_objArray_klass(ClassLoaderData* loader_data,
                                                 int n, Klass* element_klass, TRAPS);
 
-  objArrayOop allocate(int length, TRAPS);
   oop multi_allocate(int rank, jint* sizes, TRAPS);
 
   // Copying
diff --git a/src/hotspot/share/oops/typeArrayKlass.cpp b/src/hotspot/share/oops/typeArrayKlass.cpp
index 39385bb0184..bdf37c7db49 100644
--- a/src/hotspot/share/oops/typeArrayKlass.cpp
+++ b/src/hotspot/share/oops/typeArrayKlass.cpp
@@ -50,7 +50,7 @@ TypeArrayKlass* TypeArrayKlass::create_klass(BasicType type,
 
   ClassLoaderData* null_loader_data = ClassLoaderData::the_null_class_loader_data();
 
-  TypeArrayKlass* ak = TypeArrayKlass::allocate(null_loader_data, type, sym, CHECK_NULL);
+  TypeArrayKlass* ak = TypeArrayKlass::allocate_klass(null_loader_data, type, sym, CHECK_NULL);
 
   // Call complete_create_array_klass after all instance variables have been initialized.
   complete_create_array_klass(ak, ak->super(), ModuleEntryTable::javabase_moduleEntry(), CHECK_NULL);
@@ -65,7 +65,7 @@ TypeArrayKlass* TypeArrayKlass::create_klass(BasicType type,
   return ak;
 }
 
-TypeArrayKlass* TypeArrayKlass::allocate(ClassLoaderData* loader_data, BasicType type, Symbol* name, TRAPS) {
+TypeArrayKlass* TypeArrayKlass::allocate_klass(ClassLoaderData* loader_data, BasicType type, Symbol* name, TRAPS) {
   assert(TypeArrayKlass::header_size() <= InstanceKlass::header_size(),
       "array klasses must be same size as InstanceKlass");
 
@@ -101,7 +101,7 @@ oop TypeArrayKlass::multi_allocate(int rank, jint* last_size, TRAPS) {
   // For typeArrays this is only called for the last dimension
   assert(rank == 1, "just checking");
   int length = *last_size;
-  return allocate(length, THREAD);
+  return allocate_instance(length, THREAD);
 }
 
 
diff --git a/src/hotspot/share/oops/typeArrayKlass.hpp b/src/hotspot/share/oops/typeArrayKlass.hpp
index fa4e301e3e4..22600702fe2 100644
--- a/src/hotspot/share/oops/typeArrayKlass.hpp
+++ b/src/hotspot/share/oops/typeArrayKlass.hpp
@@ -33,6 +33,8 @@ class ClassLoaderData;
 // It contains the type and size of the elements
 
 class TypeArrayKlass : public ArrayKlass {
+  friend class Deoptimization;
+  friend class oopFactory;
   friend class VMStructs;
 
  public:
@@ -43,7 +45,10 @@ class TypeArrayKlass : public ArrayKlass {
 
   // Constructor
   TypeArrayKlass(BasicType type, Symbol* name);
-  static TypeArrayKlass* allocate(ClassLoaderData* loader_data, BasicType type, Symbol* name, TRAPS);
+  static TypeArrayKlass* allocate_klass(ClassLoaderData* loader_data, BasicType type, Symbol* name, TRAPS);
+
+  typeArrayOop allocate_common(int length, bool do_zero, TRAPS);
+  typeArrayOop allocate_instance(int length, TRAPS) { return allocate_common(length, true, THREAD); }
  public:
   TypeArrayKlass() {} // For dummy objects.
 
@@ -66,8 +71,6 @@ class TypeArrayKlass : public ArrayKlass {
   size_t oop_size(oop obj) const;
 
   // Allocation
-  typeArrayOop allocate_common(int length, bool do_zero, TRAPS);
-  typeArrayOop allocate(int length, TRAPS) { return allocate_common(length, true, THREAD); }
   oop multi_allocate(int rank, jint* sizes, TRAPS);
 
   oop protection_domain() const { return nullptr; }
diff --git a/src/hotspot/share/prims/jni.cpp b/src/hotspot/share/prims/jni.cpp
index 228244bbd05..5a43baeb8d8 100644
--- a/src/hotspot/share/prims/jni.cpp
+++ b/src/hotspot/share/prims/jni.cpp
@@ -2285,9 +2285,11 @@ JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass ele
   jobjectArray ret = nullptr;
   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);
   Klass* ek = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass));
-  Klass* ak = ek->array_klass(CHECK_NULL);
-  ObjArrayKlass::cast(ak)->initialize(CHECK_NULL);
-  objArrayOop result = ObjArrayKlass::cast(ak)->allocate(length, CHECK_NULL);
+
+  // Make sure bottom_klass is initialized.
+  ek->initialize(CHECK_NULL);
+  objArrayOop result = oopFactory::new_objArray(ek, length, CHECK_NULL);
+
   oop initial_value = JNIHandles::resolve(initialElement);
   if (initial_value != nullptr) {  // array already initialized with null
     for (int index = 0; index < length; index++) {
diff --git a/src/hotspot/share/prims/vectorSupport.cpp b/src/hotspot/share/prims/vectorSupport.cpp
index c907ddb4885..002f737e788 100644
--- a/src/hotspot/share/prims/vectorSupport.cpp
+++ b/src/hotspot/share/prims/vectorSupport.cpp
@@ -28,6 +28,7 @@
 #include "code/location.hpp"
 #include "jni.h"
 #include "jvm.h"
+#include "memory/oopFactory.hpp"
 #include "oops/klass.inline.hpp"
 #include "oops/typeArrayOop.inline.hpp"
 #include "prims/vectorSupport.hpp"
@@ -109,9 +110,7 @@ Handle VectorSupport::allocate_vector_payload_helper(InstanceKlass* ik, frame* f
   int elem_size = type2aelembytes(elem_bt);
 
   // On-heap vector values are represented as primitive arrays.
-  TypeArrayKlass* tak = Universe::typeArrayKlass(elem_bt);
-
-  typeArrayOop arr = tak->allocate(num_elem, CHECK_NH); // safepoint
+  typeArrayOop arr = oopFactory::new_typeArray(elem_bt, num_elem, CHECK_NH); // safepoint
 
   if (location.is_register()) {
     // Value was in a callee-saved register.
diff --git a/src/hotspot/share/runtime/deoptimization.cpp b/src/hotspot/share/runtime/deoptimization.cpp
index a0d9dd00339..ed84f2b294f 100644
--- a/src/hotspot/share/runtime/deoptimization.cpp
+++ b/src/hotspot/share/runtime/deoptimization.cpp
@@ -1274,11 +1274,11 @@ bool Deoptimization::realloc_objects(JavaThread* thread, frame* fr, RegisterMap*
       assert(sv->field_size() % type2size[ak->element_type()] == 0, "non-integral array length");
       int len = sv->field_size() / type2size[ak->element_type()];
       InternalOOMEMark iom(THREAD);
-      obj = ak->allocate(len, THREAD);
+      obj = ak->allocate_instance(len, THREAD);
     } else if (k->is_objArray_klass()) {
       ObjArrayKlass* ak = ObjArrayKlass::cast(k);
       InternalOOMEMark iom(THREAD);
-      obj = ak->allocate(sv->field_size(), THREAD);
+      obj = ak->allocate_instance(sv->field_size(), THREAD);
     }
 
     if (obj == nullptr) {
diff --git a/src/hotspot/share/runtime/reflection.cpp b/src/hotspot/share/runtime/reflection.cpp
index 9e165f76829..2a0af9d2d09 100644
--- a/src/hotspot/share/runtime/reflection.cpp
+++ b/src/hotspot/share/runtime/reflection.cpp
@@ -320,9 +320,16 @@ void Reflection::array_set(jvalue* value, arrayOop a, int index, BasicType value
   }
 }
 
+
+// Conversion
+static BasicType basic_type_mirror_to_basic_type(oop basic_type_mirror) {
+  assert(java_lang_Class::is_primitive(basic_type_mirror),
+    "just checking");
+  return java_lang_Class::primitive_type(basic_type_mirror);
+}
+
 static Klass* basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS) {
-  assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking");
-  BasicType type = java_lang_Class::primitive_type(basic_type_mirror);
+  BasicType type = basic_type_mirror_to_basic_type(basic_type_mirror);
   if (type == T_VOID) {
     THROW_NULL(vmSymbols::java_lang_IllegalArgumentException());
   }
@@ -339,8 +346,11 @@ arrayOop Reflection::reflect_new_array(oop element_mirror, jint length, TRAPS) {
     THROW_MSG_NULL(vmSymbols::java_lang_NegativeArraySizeException(), err_msg("%d", length));
   }
   if (java_lang_Class::is_primitive(element_mirror)) {
-    Klass* tak = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL);
-    return TypeArrayKlass::cast(tak)->allocate(length, THREAD);
+    BasicType type = basic_type_mirror_to_basic_type(element_mirror);
+    if (type == T_VOID) {
+      THROW_NULL(vmSymbols::java_lang_IllegalArgumentException());
+    }
+    return oopFactory::new_typeArray(type, length, CHECK_NULL);
   } else {
     Klass* k = java_lang_Class::as_Klass(element_mirror);
     if (k->is_array_klass() && ArrayKlass::cast(k)->dimension() >= MAX_DIM) {
@@ -907,13 +917,6 @@ static methodHandle resolve_interface_call(InstanceKlass* klass,
   return methodHandle(THREAD, info.selected_method());
 }
 
-// Conversion
-static BasicType basic_type_mirror_to_basic_type(oop basic_type_mirror) {
-  assert(java_lang_Class::is_primitive(basic_type_mirror),
-    "just checking");
-  return java_lang_Class::primitive_type(basic_type_mirror);
-}
-
 // Narrowing of basic types. Used to create correct jvalues for
 // boolean, byte, char and short return return values from interpreter
 // which are returned as ints. Throws IllegalArgumentException.