--- a/jdk/src/share/classes/sun/dyn/Invokers.java	Wed Jul 05 17:38:31 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,144 +0,0 @@
-/*
- * Copyright (c) 2008, 2011, 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 sun.dyn;
-
-import java.dyn.*;
-import sun.dyn.empty.Empty;
-
-/**
- * Construction and caching of often-used invokers.
- * @author jrose
- */
-public class Invokers {
-    // exact type (sans leading taget MH) for the outgoing call
-    private final MethodType targetType;
-
-    // exact invoker for the outgoing call
-    private /*lazy*/ MethodHandle exactInvoker;
-
-    // erased (partially untyped but with primitives) invoker for the outgoing call
-    private /*lazy*/ MethodHandle erasedInvoker;
-    /*lazy*/ MethodHandle erasedInvokerWithDrops;  // for InvokeGeneric
-
-    // generic (untyped) invoker for the outgoing call
-    private /*lazy*/ MethodHandle genericInvoker;
-
-    // generic (untyped) invoker for the outgoing call; accepts a single Object[]
-    private final /*lazy*/ MethodHandle[] spreadInvokers;
-
-    // invoker for an unbound callsite
-    private /*lazy*/ MethodHandle uninitializedCallSite;
-
-    /** Compute and cache information common to all collecting adapters
-     *  that implement members of the erasure-family of the given erased type.
-     */
-    /*non-public*/ Invokers(MethodType targetType) {
-        this.targetType = targetType;
-        this.spreadInvokers = new MethodHandle[targetType.parameterCount()+1];
-    }
-
-    public static MethodType invokerType(MethodType targetType) {
-        return targetType.insertParameterTypes(0, MethodHandle.class);
-    }
-
-    public MethodHandle exactInvoker() {
-        MethodHandle invoker = exactInvoker;
-        if (invoker != null)  return invoker;
-        try {
-            invoker = MethodHandleImpl.IMPL_LOOKUP.findVirtual(MethodHandle.class, "invokeExact", targetType);
-        } catch (ReflectiveOperationException ex) {
-            throw new InternalError("JVM cannot find invoker for "+targetType);
-        }
-        assert(invokerType(targetType) == invoker.type());
-        exactInvoker = invoker;
-        return invoker;
-    }
-
-    public MethodHandle genericInvoker() {
-        MethodHandle invoker1 = exactInvoker();
-        MethodHandle invoker = genericInvoker;
-        if (invoker != null)  return invoker;
-        MethodType genericType = targetType.generic();
-        invoker = MethodHandles.convertArguments(invoker1, invokerType(genericType));
-        genericInvoker = invoker;
-        return invoker;
-    }
-
-    public MethodHandle erasedInvoker() {
-        MethodHandle invoker1 = exactInvoker();
-        MethodHandle invoker = erasedInvoker;
-        if (invoker != null)  return invoker;
-        MethodType erasedType = targetType.erase();
-        if (erasedType == targetType.generic())
-            invoker = genericInvoker();
-        else
-            invoker = MethodHandles.convertArguments(invoker1, invokerType(erasedType));
-        erasedInvoker = invoker;
-        return invoker;
-    }
-
-    public MethodHandle spreadInvoker(int objectArgCount) {
-        MethodHandle vaInvoker = spreadInvokers[objectArgCount];
-        if (vaInvoker != null)  return vaInvoker;
-        MethodHandle gInvoker = genericInvoker();
-        vaInvoker = gInvoker.asSpreader(Object[].class, targetType.parameterCount() - objectArgCount);
-        spreadInvokers[objectArgCount] = vaInvoker;
-        return vaInvoker;
-    }
-
-    private static MethodHandle THROW_UCS = null;
-
-    public MethodHandle uninitializedCallSite() {
-        MethodHandle invoker = uninitializedCallSite;
-        if (invoker != null)  return invoker;
-        if (targetType.parameterCount() > 0) {
-            MethodType type0 = targetType.dropParameterTypes(0, targetType.parameterCount());
-            Invokers invokers0 = MethodTypeImpl.invokers(type0);
-            invoker = MethodHandles.dropArguments(invokers0.uninitializedCallSite(),
-                                                  0, targetType.parameterList());
-            assert(invoker.type().equals(targetType));
-            uninitializedCallSite = invoker;
-            return invoker;
-        }
-        if (THROW_UCS == null) {
-            try {
-                THROW_UCS = MethodHandleImpl.IMPL_LOOKUP
-                    .findStatic(CallSite.class, "uninitializedCallSite",
-                                MethodType.methodType(Empty.class));
-            } catch (ReflectiveOperationException ex) {
-                throw new RuntimeException(ex);
-            }
-        }
-        invoker = AdapterMethodHandle.makeRetypeRaw(Access.TOKEN, targetType, THROW_UCS);
-        assert(invoker.type().equals(targetType));
-        uninitializedCallSite = invoker;
-        return invoker;
-    }
-
-    public String toString() {
-        return "Invokers"+targetType;
-    }
-}