--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/make/test/sym/CreateSymbolsTest.java	Wed Jul 01 09:51:48 2015 +0200
@@ -0,0 +1,132 @@
+/*
+ * 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.
+ */
+
+/**
+ * @test
+ * @bug 8072480
+ * @summary Unit test for CreateSymbols
+ * @clean *
+ * @run main CreateSymbolsTest
+ */
+
+import java.io.IOException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.nio.file.FileVisitResult;
+import java.nio.file.FileVisitor;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.attribute.BasicFileAttributes;
+import java.util.Arrays;
+import javax.tools.JavaCompiler;
+import javax.tools.StandardJavaFileManager;
+import javax.tools.ToolProvider;
+
+public class CreateSymbolsTest {
+
+    static final String CREATE_SYMBOLS_NAME = "symbolgenerator.CreateSymbols";
+
+    public static void main(String... args) throws Exception {
+        new CreateSymbolsTest().doRun();
+    }
+
+    void doRun() throws Exception {
+        Path testClasses = Paths.get(System.getProperty("test.classes"));
+        Path compileDir = testClasses.resolve("data");
+        deleteRecursively(compileDir);
+        Files.createDirectories(compileDir);
+        Path createSymbols = findFile("../../make/src/build/tools/symbolgenerator/CreateSymbols.java");
+
+        if (createSymbols == null) {
+            System.err.println("Warning: cannot find CreateSymbols, skipping.");
+            return ;
+        }
+
+        Path createTestImpl = findFile("../../make/test/tools/sym/CreateSymbolsTestImpl.java");
+
+        if (createTestImpl == null) {
+            System.err.println("Warning: cannot find CreateSymbols, skipping.");
+            return ;
+        }
+
+        Path toolBox = findFile("../../langtools/test/tools/lib/ToolBox.java");
+
+        if (toolBox == null) {
+            System.err.println("Warning: cannot find ToolBox, skipping.");
+            return ;
+        }
+
+        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
+
+        try (StandardJavaFileManager fm = compiler.getStandardFileManager(null, null, null)) {
+            compiler.getTask(null,
+                             null,
+                             null,
+                             Arrays.asList("-d", compileDir.toAbsolutePath().toString()),
+                             null,
+                             fm.getJavaFileObjects(createSymbols, createTestImpl, toolBox)
+                            ).call();
+        }
+
+        URLClassLoader cl = new URLClassLoader(new URL[] {testClasses.toUri().toURL(), compileDir.toUri().toURL()});
+        Class<?> createSymbolTest = cl.loadClass("CreateSymbolsTestImpl");
+
+        createSymbolTest.getMethod("main", String[].class).invoke(null, (Object) new String[0]);
+    }
+
+    Path findFile(String path) {
+        Path testSrc = Paths.get(System.getProperty("test.src", "."));
+
+        for (Path d = testSrc; d != null; d = d.getParent()) {
+            if (Files.exists(d.resolve("TEST.ROOT"))) {
+                Path createSymbols = d.resolve(path);
+                if (Files.exists(createSymbols)) {
+                    return createSymbols;
+                }
+            }
+        }
+
+        return null;
+    }
+
+    void deleteRecursively(Path dir) throws IOException {
+        Files.walkFileTree(dir, new FileVisitor<Path>() {
+            @Override
+            public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
+                return FileVisitResult.CONTINUE;
+            }
+            @Override public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
+                Files.delete(file);
+                return FileVisitResult.CONTINUE;
+            }
+            @Override public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
+                return FileVisitResult.CONTINUE;
+            }
+            @Override public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
+                Files.delete(dir);
+                return FileVisitResult.CONTINUE;
+            }
+        });
+    }
+}