--- /dev/null	2019-02-07 20:54:51.336000000 +0300
+++ new/test/lib/jdk/test/lib/compiler/CompilerUtils.java	2019-02-08 18:34:02.707143715 +0300
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2015, 2018, 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.
+ */
+
+package jdk.test.lib.compiler;
+
+import javax.tools.JavaCompiler;
+import javax.tools.StandardJavaFileManager;
+import javax.tools.StandardLocation;
+import javax.tools.ToolProvider;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * This class consists exclusively of static utility methods for invoking the
+ * java compiler.
+ */
+public final class CompilerUtils {
+    private CompilerUtils() { }
+
+    /**
+     * Compile all the java sources in {@code <source>/**} to
+     * {@code <destination>/**}. The destination directory will be created if
+     * it doesn't exist.
+     *
+     * Equivalent to calling {@code compile(source, destination, true, options);}.
+     *
+     * All warnings/errors emitted by the compiler are output to System.out/err.
+     *
+     * @param source Path to the source directory
+     * @param destination Path to the destination directory
+     * @param options Any options to pass to the compiler
+     *
+     * @return true if the compilation is successful
+     *
+     * @throws IOException
+     *         if there is an I/O error scanning the source tree or
+     *         creating the destination directory
+     * @throws UnsupportedOperationException
+     *         if there is no system java compiler
+     */
+    public static boolean compile(Path source, Path destination, String... options)
+        throws IOException
+    {
+        return compile(source, destination, true, options);
+    }
+
+    /**
+     * Compile all the java sources in {@code <source>} and optionally its
+     * subdirectories, to
+     * {@code <destination>}. The destination directory will be created if
+     * it doesn't exist.
+     *
+     * All warnings/errors emitted by the compiler are output to System.out/err.
+     *
+     * @param source Path to the source directory
+     * @param destination Path to the destination directory
+     * @param recurse If {@code true} recurse into any {@code source} subdirectories
+     *        to compile all java source files; else only compile those directly in
+     *        {@code source}.
+     * @param options Any options to pass to the compiler
+     *
+     * @return true if the compilation is successful
+     *
+     * @throws IOException
+     *         if there is an I/O error scanning the source tree or
+     *         creating the destination directory
+     * @throws UnsupportedOperationException
+     *         if there is no system java compiler
+     */
+
+   public static boolean compile(Path source, Path destination, boolean recurse, String... options)
+        throws IOException
+    {
+        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
+        if (compiler == null) {
+            // no compiler available
+            throw new UnsupportedOperationException("Unable to get system java compiler. "
+                    + "Perhaps, jdk.compiler module is not available.");
+        }
+        StandardJavaFileManager jfm = compiler.getStandardFileManager(null, null, null);
+
+        List<Path> sources
+            = Files.find(source, (recurse ? Integer.MAX_VALUE : 1),
+                (file, attrs) -> (file.toString().endsWith(".java")))
+                .collect(Collectors.toList());
+
+        Files.createDirectories(destination);
+        jfm.setLocation(StandardLocation.CLASS_PATH, Collections.emptyList());
+        jfm.setLocationFromPaths(StandardLocation.CLASS_OUTPUT,
+                Collections.singletonList(destination));
+
+        List<String> opts = Arrays.asList(options);
+        JavaCompiler.CompilationTask task
+            = compiler.getTask(null, jfm, null, opts, null,
+                jfm.getJavaFileObjectsFromPaths(sources));
+
+        return task.call();
+    }
+}