--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/oops/oop.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,182 @@
+/*
+ * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "classfile/altHashing.hpp"
+#include "classfile/javaClasses.inline.hpp"
+#include "memory/resourceArea.hpp"
+#include "oops/oop.inline.hpp"
+#include "oops/verifyOopClosure.hpp"
+#include "runtime/handles.inline.hpp"
+#include "runtime/thread.inline.hpp"
+#include "utilities/copy.hpp"
+#if INCLUDE_ALL_GCS
+#include "gc/g1/g1Allocator.inline.hpp"
+#endif
+
+bool always_do_update_barrier = false;
+
+BarrierSet* oopDesc::_bs = NULL;
+
+void oopDesc::print_on(outputStream* st) const {
+  if (this == NULL) {
+    st->print_cr("NULL");
+  } else {
+    klass()->oop_print_on(oop(this), st);
+  }
+}
+
+void oopDesc::print_address_on(outputStream* st) const {
+  st->print("{" INTPTR_FORMAT "}", p2i(this));
+
+}
+
+void oopDesc::print()         { print_on(tty);         }
+
+void oopDesc::print_address() { print_address_on(tty); }
+
+char* oopDesc::print_string() {
+  stringStream st;
+  print_on(&st);
+  return st.as_string();
+}
+
+void oopDesc::print_value() {
+  print_value_on(tty);
+}
+
+char* oopDesc::print_value_string() {
+  char buf[100];
+  stringStream st(buf, sizeof(buf));
+  print_value_on(&st);
+  return st.as_string();
+}
+
+void oopDesc::print_value_on(outputStream* st) const {
+  oop obj = oop(this);
+  if (this == NULL) {
+    st->print("NULL");
+  } else if (java_lang_String::is_instance(obj)) {
+    java_lang_String::print(obj, st);
+    print_address_on(st);
+  } else {
+    klass()->oop_print_value_on(obj, st);
+  }
+}
+
+
+void oopDesc::verify_on(outputStream* st) {
+  if (this != NULL) {
+    klass()->oop_verify_on(this, st);
+  }
+}
+
+
+void oopDesc::verify() {
+  verify_on(tty);
+}
+
+intptr_t oopDesc::slow_identity_hash() {
+  // slow case; we have to acquire the micro lock in order to locate the header
+  Thread* THREAD = Thread::current();
+  ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY
+  HandleMark hm(THREAD);
+  Handle object(THREAD, this);
+  return ObjectSynchronizer::identity_hash_value_for(object);
+}
+
+// When String table needs to rehash
+unsigned int oopDesc::new_hash(juint seed) {
+  EXCEPTION_MARK;
+  ResourceMark rm;
+  int length;
+  jchar* chars = java_lang_String::as_unicode_string(this, length, THREAD);
+  if (chars != NULL) {
+    // Use alternate hashing algorithm on the string
+    return AltHashing::murmur3_32(seed, chars, length);
+  } else {
+    vm_exit_out_of_memory(length, OOM_MALLOC_ERROR, "unable to create Unicode strings for String table rehash");
+    return 0;
+  }
+}
+
+// used only for asserts and guarantees
+bool oopDesc::is_oop(oop obj, bool ignore_mark_word) {
+  if (!check_obj_alignment(obj)) return false;
+  if (!Universe::heap()->is_in_reserved(obj)) return false;
+  // obj is aligned and accessible in heap
+  if (Universe::heap()->is_in_reserved(obj->klass_or_null())) return false;
+
+  // Header verification: the mark is typically non-NULL. If we're
+  // at a safepoint, it must not be null.
+  // Outside of a safepoint, the header could be changing (for example,
+  // another thread could be inflating a lock on this object).
+  if (ignore_mark_word) {
+    return true;
+  }
+  if (obj->mark() != NULL) {
+    return true;
+  }
+  return !SafepointSynchronize::is_at_safepoint();
+}
+
+// used only for asserts and guarantees
+bool oopDesc::is_oop_or_null(oop obj, bool ignore_mark_word) {
+  return obj == NULL ? true : is_oop(obj, ignore_mark_word);
+}
+
+#ifndef PRODUCT
+// used only for asserts
+bool oopDesc::is_unlocked_oop() const {
+  if (!Universe::heap()->is_in_reserved(this)) return false;
+  return mark()->is_unlocked();
+}
+#endif // PRODUCT
+
+VerifyOopClosure VerifyOopClosure::verify_oop;
+
+template <class T> void VerifyOopClosure::do_oop_work(T* p) {
+  oop obj = oopDesc::load_decode_heap_oop(p);
+  guarantee(oopDesc::is_oop_or_null(obj), "invalid oop: " INTPTR_FORMAT, p2i((oopDesc*) obj));
+}
+
+void VerifyOopClosure::do_oop(oop* p)       { VerifyOopClosure::do_oop_work(p); }
+void VerifyOopClosure::do_oop(narrowOop* p) { VerifyOopClosure::do_oop_work(p); }
+
+// type test operations that doesn't require inclusion of oop.inline.hpp.
+bool oopDesc::is_instance_noinline()          const { return is_instance();            }
+bool oopDesc::is_array_noinline()             const { return is_array();               }
+bool oopDesc::is_objArray_noinline()          const { return is_objArray();            }
+bool oopDesc::is_typeArray_noinline()         const { return is_typeArray();           }
+
+bool oopDesc::has_klass_gap() {
+  // Only has a klass gap when compressed class pointers are used.
+  return UseCompressedClassPointers;
+}
+
+#if INCLUDE_CDS_JAVA_HEAP
+bool oopDesc::is_archive_object(oop p) {
+  return (p == NULL) ? false : G1ArchiveAllocator::is_archive_object(p);
+}
+#endif