--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/jdk/jshell/Compiler.java	Mon Oct 19 19:15:16 2015 +0200
@@ -0,0 +1,99 @@
+/*
+ * 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.
+ *
+ * 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.
+ */
+
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.jar.Attributes;
+import java.util.jar.Manifest;
+
+public class Compiler {
+
+    private final ToolBox tb = new ToolBox();
+
+    public Path getClassDir() {
+        String classes = ToolBox.testClasses;
+        if (classes == null) {
+            return Paths.get("build");
+        } else {
+            return Paths.get(classes);
+        }
+    }
+
+    public Path getPath(String path) {
+        return getPath(Paths.get(path));
+    }
+
+    public Path getPath(Path path) {
+        return getClassDir().resolve(path);
+    }
+
+    public void compile(String...sources) {
+        compile(Paths.get("."), sources);
+    }
+
+    public void compile(Path directory, String...sources) {
+        Path classDir = getClassDir();
+        tb.new JavacTask()
+                .options("-d", classDir.resolve(directory).toString())
+                .sources(sources)
+                .run();
+    }
+
+    public void jar(String jarName, String...files) {
+        jar(Paths.get("."), jarName, files);
+    }
+
+    public void jar(Path directory, String jarName, String...files) {
+        Manifest manifest = new Manifest();
+        manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
+        Path classDirPath = getClassDir();
+        Path baseDir = classDirPath.resolve(directory);
+        Path jarPath = baseDir.resolve(jarName);
+        tb.new JarTask(jarPath.toString())
+                .manifest(manifest)
+                .baseDir(baseDir.toString())
+                .files(files).run();
+    }
+
+    public void writeToFile(Path path, String...sources) {
+        try {
+            if (path.getParent() != null) {
+                Files.createDirectories(path.getParent());
+            }
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+        try (BufferedWriter writer = Files.newBufferedWriter(path)) {
+            for (String source : sources) {
+                writer.append(source);
+                writer.append('\n');
+            }
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+}