--- /dev/null	2015-09-01 10:30:13.517273143 +0200
+++ new/src/java.base/share/classes/jdk/internal/vm/annotation/ReservedStackAccess.java	2015-11-23 18:24:20.894030125 +0100
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2015, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+package jdk.internal.vm.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * <p>An annotation expressing that a method is especially sensitive
+ * to stack overflows. This is a hint the JVM can use to grant access to
+ * extra stack space when executing this code if such feature is supported
+ * by the JVM. The JVM is free to ignore this annotation. 
+ * 
+ * A possible way for the JVM to improve the execution context for methods
+ * with this annotation is to reserve part of the thread's execution stack
+ * for them. Access to this section of the stack would be denied by default
+ * but could be granted if the JVM detects a possible stack overflow and
+ * the thread's call stack includes at least one annotated method. Even if
+ * access to this reserved area has been granted, the JVM might decide to
+ * throw a delayed StackOverflowError when the thread exits the annotated
+ * method.
+ * 
+ * @since 1.9
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.METHOD, ElementType.CONSTRUCTOR})
+public @interface ReservedStackAccess { }
+