--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/parallel/psVMOperations.cpp	Thu Dec 06 15:44:13 2018 +0100
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2007, 2018, 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 "gc/parallel/parallelScavengeHeap.inline.hpp"
+#include "gc/parallel/psScavenge.hpp"
+#include "gc/parallel/psVMOperations.hpp"
+#include "gc/shared/gcLocker.hpp"
+#include "utilities/dtrace.hpp"
+
+// The following methods are used by the parallel scavenge collector
+VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t word_size,
+                                                             uint gc_count) :
+    VM_CollectForAllocation(word_size, gc_count, GCCause::_allocation_failure) {
+  assert(word_size != 0, "An allocation should always be requested with this operation.");
+}
+
+void VM_ParallelGCFailedAllocation::doit() {
+  SvcGCMarker sgcm(SvcGCMarker::MINOR);
+
+  ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
+
+  GCCauseSetter gccs(heap, _gc_cause);
+  _result = heap->failed_mem_allocate(_word_size);
+
+  if (_result == NULL && GCLocker::is_active_and_needs_gc()) {
+    set_gc_locked();
+  }
+}
+
+// Only used for System.gc() calls
+VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(uint gc_count,
+                                             uint full_gc_count,
+                                             GCCause::Cause gc_cause) :
+  VM_GC_Operation(gc_count, gc_cause, full_gc_count, true /* full */)
+{
+}
+
+void VM_ParallelGCSystemGC::doit() {
+  SvcGCMarker sgcm(SvcGCMarker::FULL);
+
+  ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
+
+  GCCauseSetter gccs(heap, _gc_cause);
+  if (_gc_cause == GCCause::_gc_locker || _gc_cause == GCCause::_wb_young_gc
+      DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) {
+    // If (and only if) the scavenge fails, this will invoke a full gc.
+    heap->invoke_scavenge();
+  } else {
+    heap->do_full_collection(false);
+  }
+}