--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/Specialization.java	2020-04-15 18:50:11.000000000 +0530
+++ /dev/null	2020-04-15 18:50:11.000000000 +0530
@@ -1,129 +0,0 @@
-/*
- * Copyright (c) 2010, 2014, 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.nashorn.internal.runtime;
-
-import java.lang.invoke.MethodHandle;
-import jdk.nashorn.internal.objects.annotations.SpecializedFunction;
-import jdk.nashorn.internal.objects.annotations.SpecializedFunction.LinkLogic;
-
-/**
- * Specialization info for a {@link SpecializedFunction}
- */
-public final class Specialization {
-    private final MethodHandle mh;
-    private final Class<? extends LinkLogic> linkLogicClass;
-    private final boolean isOptimistic;
-    private final boolean convertsNumericArgs;
-
-    /**
-     * Constructor
-     *
-     * @param mh  invoker method handler
-     */
-    public Specialization(final MethodHandle mh) {
-        this(mh, false, true);
-    }
-
-    /**
-     * Constructor
-     *
-     * @param mh  invoker method handler
-     * @param isOptimistic is this an optimistic native method, i.e. can it throw {@link UnwarrantedOptimismException}
-     *   which would have to lead to a relink and return value processing
-     * @param convertsNumericArgs true if it is safe to convert arguments to numbers
-     */
-    public Specialization(final MethodHandle mh, final boolean isOptimistic, final boolean convertsNumericArgs) {
-        this(mh, null, isOptimistic, convertsNumericArgs);
-    }
-
-    /**
-     * Constructor
-     *
-     * @param mh  invoker method handler
-     * @param linkLogicClass extra link logic needed for this function. Instances of this class also contains logic for checking
-     *  if this can be linked on its first encounter, which is needed as per our standard linker semantics
-     * @param isOptimistic is this an optimistic native method, i.e. can it throw {@link UnwarrantedOptimismException}
-     *   which would have to lead to a relink and return value processing
-     * @param convertsNumericArgs true if it is safe to convert arguments to numbers
-     */
-    public Specialization(final MethodHandle mh, final Class<? extends LinkLogic> linkLogicClass,
-                          final boolean isOptimistic, final boolean convertsNumericArgs) {
-        this.mh             = mh;
-        this.isOptimistic   = isOptimistic;
-        this.convertsNumericArgs = convertsNumericArgs;
-        if (linkLogicClass != null) {
-            //null out the "empty" link logic class for optimization purposes
-            //we only use the empty instance because we can't default class annotations
-            //to null
-            this.linkLogicClass = LinkLogic.isEmpty(linkLogicClass) ? null : linkLogicClass;
-        } else {
-            this.linkLogicClass = null;
-        }
-     }
-
-    /**
-     * Get the method handle for the invoker of this ScriptFunction
-     * @return the method handle
-     */
-    public MethodHandle getMethodHandle() {
-        return mh;
-    }
-
-    /**
-     * Get the link logic class for this ScriptFunction
-     * @return link logic class info, i.e. one whose instance contains stuff like
-     *  "do we need exception check for every call", and logic to check if we may link
-     */
-    public Class<? extends LinkLogic> getLinkLogicClass() {
-        return linkLogicClass;
-    }
-
-    /**
-     * An optimistic specialization is one that can throw UnwarrantedOptimismException.
-     * This is allowed for native methods, as long as they are functional, i.e. don't change
-     * any state between entering and throwing the UOE. Then we can re-execute a wider version
-     * of the method in the continuation. Rest-of method generation for optimistic builtins is
-     * of course not possible, but this approach works and fits into the same relinking
-     * framework
-     *
-     * @return true if optimistic
-     */
-    public boolean isOptimistic() {
-        return isOptimistic;
-    }
-
-    /**
-     * Check if this function converts arguments for numeric parameters to numbers
-     * so it's safe to pass booleans as 0 and 1
-     *
-     * @return true if it is safe to convert arguments to numbers
-     */
-    public boolean convertsNumericArgs() {
-        return convertsNumericArgs;
-    }
-
-}
-