--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/langtools/jdk/javadoc/doclet/testDocFileDir/TestDocFileDir.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2002, 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.
+ *
+ * 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 4258405 4973606 8024096
+ * @summary This test verifies that the doc-file directory does not
+ *          get overwritten when the sourcepath is equal to the destination
+ *          directory.
+ *          Also test that -docfilessubdirs and -excludedocfilessubdir both work.
+ * @author jamieh
+ * @library ../lib
+ * @modules jdk.javadoc/jdk.javadoc.internal.tool
+ * @build JavadocTester
+ * @run main TestDocFileDir
+ */
+
+public class TestDocFileDir extends JavadocTester {
+
+    public static void main(String... args) throws Exception {
+        TestDocFileDir tester = new TestDocFileDir();
+        tester.runTests();
+    }
+
+    // Output dir = "", Input dir = ""
+    @Test
+    void test1() {
+        copyDir(testSrc("pkg"), ".");
+        setOutputDirectoryCheck(DirectoryCheck.NO_HTML_FILES);
+        javadoc("pkg/C.java");
+        checkExit(Exit.OK);
+        checkOutput("pkg/doc-files/testfile.txt", true,
+            "This doc file did not get trashed.");
+    }
+
+    // Output dir = Input Dir
+    @Test
+    void test2() {
+        String outdir = "out2";
+        copyDir(testSrc("pkg"), outdir);
+        setOutputDirectoryCheck(DirectoryCheck.NO_HTML_FILES);
+        javadoc("-d", outdir,
+            "-sourcepath", "blah" + PS + outdir + PS + "blah",
+            "pkg");
+        checkExit(Exit.OK);
+        checkOutput("pkg/doc-files/testfile.txt", true,
+            "This doc file did not get trashed.");
+    }
+
+    // Exercising -docfilessubdirs and -excludedocfilessubdir
+    @Test
+    void test3() {
+        String outdir = "out3";
+        setOutputDirectoryCheck(DirectoryCheck.NONE);
+        javadoc("-d", outdir,
+                "-sourcepath", testSrc,
+                "-docfilessubdirs",
+                "-excludedocfilessubdir", "subdir-excluded1:subdir-excluded2",
+                "pkg");
+        checkExit(Exit.OK);
+        checkFiles(true,
+                "pkg/doc-files/subdir-used1/testfile.txt",
+                "pkg/doc-files/subdir-used2/testfile.txt");
+        checkFiles(false,
+                "pkg/doc-files/subdir-excluded1/testfile.txt",
+                "pkg/doc-files/subdir-excluded2/testfile.txt");
+    }
+}