--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/jdk/modules/etc/UpgradeableModules.java Thu Jun 15 11:54:49 2017 -0700
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2017, 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 Verify that upgradeable modules are not hashed in java.base
+ * whereas non-upgradeable modules are.
+ * @modules java.base/jdk.internal.module
+ * @run main UpgradeableModules
+ */
+
+import jdk.internal.module.ModuleHashes;
+import jdk.internal.module.ModuleReferenceImpl;
+
+import java.lang.module.ModuleFinder;
+import java.lang.module.ModuleReference;
+import java.lang.module.ResolvedModule;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Optional;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+public class UpgradeableModules {
+ private static final List<String> UPGRADEABLE_MODULES =
+ List.of("java.activation",
+ "java.compiler",
+ "java.corba",
+ "java.jnlp",
+ "java.transaction",
+ "java.xml.bind",
+ "java.xml.ws",
+ "java.xml.ws.annotation",
+ "jdk.internal.vm.compiler",
+ "jdk.deploy",
+ "jdk.javaws",
+ "jdk.plugin",
+ "jdk.plugin.dom",
+ "jdk.xml.bind",
+ "jdk.xml.ws");
+
+ public static void main(String... args) {
+ Set<String> hashedModules = hashedModules();
+ if (hashedModules.isEmpty())
+ return;
+
+ if (UPGRADEABLE_MODULES.stream().anyMatch(hashedModules::contains)) {
+ throw new RuntimeException("upgradeable modules are hashed: " +
+ UPGRADEABLE_MODULES.stream()
+ .filter(hashedModules::contains)
+ .collect(Collectors.joining(" ")));
+ }
+
+ Set<String> nonUpgradeableModules =
+ ModuleFinder.ofSystem().findAll().stream()
+ .map(mref -> mref.descriptor().name())
+ .filter(mn -> !UPGRADEABLE_MODULES.contains(mn))
+ .collect(Collectors.toSet());
+
+ if (nonUpgradeableModules.stream().anyMatch(mn -> !hashedModules.contains(mn))) {
+ throw new RuntimeException("non-upgradeable modules are not hashed: " +
+ nonUpgradeableModules.stream()
+ .filter(mn -> !hashedModules.contains(mn))
+ .collect(Collectors.joining(" ")));
+ }
+ }
+
+ private static Set<String> hashedModules() {
+ Optional<ResolvedModule> resolvedModule = ModuleLayer.boot()
+ .configuration()
+ .findModule("java.base");
+ assert resolvedModule.isPresent();
+ ModuleReference mref = resolvedModule.get().reference();
+ assert mref instanceof ModuleReferenceImpl;
+ ModuleHashes hashes = ((ModuleReferenceImpl) mref).recordedHashes();
+ if (hashes != null) {
+ Set<String> names = new HashSet<>(hashes.names());
+ names.add("java.base");
+ return names;
+ }
+
+ return Set.of();
+ }
+}