--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.jshell/share/classes/jdk/jshell/execution/DefaultLoaderDelegate.java	Wed Jul 20 23:19:09 2016 -0700
@@ -0,0 +1,132 @@
+/*
+ * 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.jshell.execution;
+
+import java.io.File;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.security.CodeSource;
+import java.util.Map;
+import java.util.TreeMap;
+import jdk.jshell.spi.ExecutionControl.ClassBytecodes;
+import jdk.jshell.spi.ExecutionControl.ClassInstallException;
+import jdk.jshell.spi.ExecutionControl.EngineTerminationException;
+import jdk.jshell.spi.ExecutionControl.InternalException;
+import jdk.jshell.spi.ExecutionControl.NotImplementedException;
+
+/**
+ * The standard implementation of {@link LoaderDelegate} using
+ * a {@link URLClassLoader}.
+ *
+ * @author Robert Field
+ */
+class DefaultLoaderDelegate implements LoaderDelegate {
+
+    private final RemoteClassLoader loader;
+    private final Map<String, Class<?>> klasses = new TreeMap<>();
+
+    class RemoteClassLoader extends URLClassLoader {
+
+        private final Map<String, byte[]> classObjects = new TreeMap<>();
+
+        RemoteClassLoader() {
+            super(new URL[0]);
+        }
+
+        void delare(String name, byte[] bytes) {
+            classObjects.put(name, bytes);
+        }
+
+        @Override
+        protected Class<?> findClass(String name) throws ClassNotFoundException {
+            byte[] b = classObjects.get(name);
+            if (b == null) {
+                return super.findClass(name);
+            }
+            return super.defineClass(name, b, 0, b.length, (CodeSource) null);
+        }
+
+        @Override
+        public void addURL(URL url) {
+            super.addURL(url);
+        }
+
+    }
+
+    public DefaultLoaderDelegate() {
+        this.loader = new RemoteClassLoader();
+    }
+
+    @Override
+    public void load(ClassBytecodes[] cbcs)
+            throws ClassInstallException, EngineTerminationException {
+        boolean[] loaded = new boolean[cbcs.length];
+        try {
+            for (ClassBytecodes cbc : cbcs) {
+                loader.delare(cbc.name(), cbc.bytecodes());
+            }
+            for (int i = 0; i < cbcs.length; ++i) {
+                ClassBytecodes cbc = cbcs[i];
+                Class<?> klass = loader.loadClass(cbc.name());
+                klasses.put(cbc.name(), klass);
+                loaded[i] = true;
+                // Get class loaded to the point of, at least, preparation
+                klass.getDeclaredMethods();
+            }
+        } catch (Throwable ex) {
+            throw new ClassInstallException("load: " + ex.getMessage(), loaded);
+        }
+    }
+
+
+    @Override
+    public void addToClasspath(String cp)
+            throws EngineTerminationException, InternalException {
+        try {
+            for (String path : cp.split(File.pathSeparator)) {
+                loader.addURL(new File(path).toURI().toURL());
+            }
+        } catch (Exception ex) {
+            throw new InternalException(ex.toString());
+        }
+    }
+
+    @Override
+    public void setClasspath(String path)
+            throws EngineTerminationException, InternalException {
+        throw new NotImplementedException("setClasspath: Not supported yet.");
+    }
+
+    @Override
+    public Class<?> findClass(String name) throws ClassNotFoundException {
+        Class<?> klass = klasses.get(name);
+        if (klass == null) {
+            throw new ClassNotFoundException(name + " not found");
+        } else {
+            return klass;
+        }
+    }
+
+}