--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/cds/appcds/ExtraSymbols.java	Thu Oct 17 20:53:35 2019 +0100
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2014, 2019, 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
+ * @summary Adding extra symbols into CDS archive using -XX:SharedArchiveConfigFile
+ * @requires vm.cds
+ * @library /test/lib
+ * @modules jdk.jartool/sun.tools.jar
+ * @compile test-classes/Hello.java
+ * @run driver ExtraSymbols
+ */
+
+import java.io.*;
+import jdk.test.lib.process.OutputAnalyzer;
+
+public class ExtraSymbols {
+    static final String CDS_LOGGING = "-Xlog:cds,cds+hashtables";
+    public static void main(String[] args) throws Exception {
+        String appJar = JarBuilder.getOrCreateHelloJar();
+
+        // 1. Dump without extra symbols.
+        OutputAnalyzer output = TestCommon.dump(appJar, TestCommon.list("Hello"),
+                                                CDS_LOGGING);
+        checkOutput(output);
+        int numEntries1 = numOfEntries(output);
+
+        // 2. Dump an archive with extra symbols. All symbols in
+        // ExtraSymbols.symbols.txt are valid. Dumping should succeed.
+        output = TestCommon.dump(appJar, TestCommon.list("Hello"), CDS_LOGGING,
+            "-XX:SharedArchiveConfigFile=" + TestCommon.getSourceFile("ExtraSymbols.symbols.txt"));
+        checkOutput(output);
+        int numEntries2 = numOfEntries(output);
+        if (numEntries2 <= numEntries1) {
+            throw new RuntimeException("No extra symbols added to archive");
+        }
+        output = TestCommon.exec(appJar, "Hello");
+        TestCommon.checkExec(output);
+
+        // 3. Dump with invalid symbol files. Dumping should fail.
+        String invalid_symbol_files[] = {"ExtraSymbols.invalid_1.txt",
+                                         "ExtraSymbols.invalid_2.txt",
+                                         "ExtraSymbols.invalid_3.txt"};
+        String err_msgs[] = {"Corrupted at line",
+                             "wrong version of hashtable dump file",
+                             "Corrupted at line"};
+        for (int i = 0; i < invalid_symbol_files.length; i++) {
+            output = TestCommon.dump(appJar, TestCommon.list("Hello"),
+                                     "-XX:SharedArchiveConfigFile=" +
+                                     TestCommon.getSourceFile(invalid_symbol_files[i]));
+            output.shouldContain("Error occurred during initialization of VM");
+            output.shouldContain(err_msgs[i]);
+        }
+    }
+
+    static int numOfEntries(OutputAnalyzer output) {
+        String s = output.firstMatch("Number of entries       : .*");
+        String subs[] = s.split("[:]");
+        int numEntries = Integer.parseInt(subs[1].trim());
+        return numEntries;
+    }
+
+    static void checkOutput(OutputAnalyzer output) throws Exception {
+        output.shouldContain("Loading classes to share");
+        output.shouldContain("Shared symbol table stats -------- base:");
+        output.shouldHaveExitValue(0);
+    }
+}