--- a/langtools/src/jdk.jshell/share/classes/jdk/internal/jshell/jdi/ClassTracker.java	Mon Jul 25 15:09:23 2016 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,130 +0,0 @@
-/*
- * Copyright (c) 2016, 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.jshell.jdi;
-
-import java.util.HashMap;
-import java.util.Objects;
-import com.sun.jdi.ReferenceType;
-import java.util.List;
-import com.sun.jdi.VirtualMachine;
-
-/**
- * Tracks the state of a class.
- */
-class ClassTracker {
-
-    private final VirtualMachine vm;
-    private final HashMap<String, ClassInfo> map;
-
-    ClassTracker(VirtualMachine vm) {
-        this.vm = vm;
-        this.map = new HashMap<>();
-    }
-
-    /**
-     * Associates a class name, class bytes, and ReferenceType.
-     */
-    class ClassInfo {
-
-        // The name of the class -- always set
-        private final String className;
-
-        // The corresponding compiled class bytes when a load or redefine
-        // is started.  May not be the loaded bytes.  May be null.
-        private byte[] bytes;
-
-        // The class bytes successfully loaded/redefined into the remote VM.
-        private byte[] loadedBytes;
-
-        // The corresponding JDI ReferenceType.  Used by redefineClasses and
-        // acts as indicator of successful load (null if not loaded).
-        private ReferenceType rt;
-
-        private ClassInfo(String className) {
-            this.className = className;
-        }
-
-        String getClassName() {
-            return className;
-        }
-
-        byte[] getLoadedBytes() {
-            return loadedBytes;
-        }
-
-        byte[] getBytes() {
-            return bytes;
-        }
-
-        private void setBytes(byte[] potentialBytes) {
-            this.bytes = potentialBytes;
-        }
-
-        // The class has been successful loaded redefined.  The class bytes
-        // sent are now actually loaded.
-        void markLoaded() {
-            loadedBytes = bytes;
-        }
-
-        // Ask JDI for the ReferenceType, null if not loaded.
-        ReferenceType getReferenceTypeOrNull() {
-            if (rt == null) {
-                rt = nameToRef(className);
-            }
-            return rt;
-        }
-
-        private ReferenceType nameToRef(String name) {
-            List<ReferenceType> rtl = vm.classesByName(name);
-            if (rtl.size() != 1) {
-                return null;
-            }
-            return rtl.get(0);
-        }
-
-        @Override
-        public boolean equals(Object o) {
-            return o instanceof ClassInfo
-                    && ((ClassInfo) o).className.equals(className);
-        }
-
-        @Override
-        public int hashCode() {
-            return Objects.hashCode(this.className);
-        }
-    }
-
-    // Map a class name to the current compiled class bytes.
-    ClassInfo classInfo(String className, byte[] bytes) {
-        ClassInfo ci = get(className);
-        ci.setBytes(bytes);
-        return ci;
-    }
-
-    // Lookup the ClassInfo by class name, create if it does not exist.
-    ClassInfo get(String className) {
-        return map.computeIfAbsent(className, k -> new ClassInfo(k));
-    }
-}