8208269: Javadoc does not support module-info in a multi-release jar

Ensuring correct version is set when reading multi-release jars.

Reviewed-by: jjg

src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/Start.java

@@ -54,6 +54,7 @@ import javax.tools.StandardLocation;
 import com.sun.tools.javac.api.JavacTrees;
 import com.sun.tools.javac.file.BaseFileManager;
 import com.sun.tools.javac.file.JavacFileManager;
+import com.sun.tools.javac.jvm.Target;
 import com.sun.tools.javac.main.Arguments;
 import com.sun.tools.javac.main.CommandLine;
 import com.sun.tools.javac.main.OptionHelper;
@@ -549,6 +550,11 @@ public class Start extends ToolOption.Helper {
             ((BaseFileManager) fileManager).handleOptions(fileManagerOpts);
         }
 
+        if (fileManager.isSupportedOption(MULTIRELEASE.primaryName) == 1) {
+            Target target = Target.instance(context);
+            List<String> list = List.of(target.multiReleaseValue());
+            fileManager.handleOption(MULTIRELEASE.primaryName, list.iterator());
+        }
         compOpts.notifyListeners();
         List<String> modules = (List<String>) jdtoolOpts.computeIfAbsent(ToolOption.MODULE,
                 s -> Collections.EMPTY_LIST);

test/langtools/jdk/javadoc/tool/MultiReleaseJar/TestMultiRelease.java

@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 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.
+ */
+
+/*
+ * @test
+ * @bug 8208269
+ * @summary Verify module-infos are read from the correct place in multi-release jars
+ * @library /tools/lib
+ * @modules jdk.compiler/com.sun.tools.javac.api
+ *          jdk.compiler/com.sun.tools.javac.main
+ *          jdk.javadoc/jdk.javadoc.internal.api
+ *          jdk.javadoc/jdk.javadoc.internal.tool
+ * @build toolbox.JavacTask toolbox.JavadocTask toolbox.TestRunner toolbox.ToolBox
+ * @run main TestMultiRelease
+ */
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Arrays;
+
+import toolbox.JarTask;
+import toolbox.JavacTask;
+import toolbox.JavadocTask;
+import toolbox.Task.Expect;
+import toolbox.TestRunner;
+import toolbox.ToolBox;
+
+public class TestMultiRelease extends TestRunner {
+
+    public static void main(String... args) throws Exception {
+        TestMultiRelease t = new TestMultiRelease();
+        t.runTests(m -> new Object[] { Paths.get(m.getName()) });
+    }
+
+    private final ToolBox tb = new ToolBox();
+
+    TestMultiRelease() throws IOException {
+        super(System.err);
+    }
+
+    @Test
+    public void testMultiReleaseModule(Path base) throws Exception {
+        Files.createDirectory(base);
+
+        Path module = base.resolve("module");
+        Path moduleSrc = module.resolve("src");
+        Path moduleCls = module.resolve("classes");
+
+        tb.writeJavaFiles(moduleSrc, "module test.module { }");
+
+        Files.createDirectories(moduleCls);
+
+        new JavacTask(tb)
+                .outdir(moduleCls)
+                .files(tb.findJavaFiles(moduleSrc))
+                .run()
+                .writeAll();
+
+        Path moduleJarDir = module.resolve("jar-dir");
+        Path versions = moduleJarDir.resolve("META-INF/versions/10");
+
+        Files.createDirectories(versions);
+
+        Files.copy(moduleCls.resolve("module-info.class"),
+                   versions.resolve("module-info.class"));
+
+        Path moduleJar = module.resolve("module.jar");
+
+        new JarTask(tb, moduleJar)
+                .baseDir(moduleJarDir)
+                .files(Arrays.stream(tb.findFiles("class", moduleJarDir))
+                             .map(p -> moduleJarDir.relativize(p).toString())
+                             .toArray(s -> new String[s]))
+                .manifest("Multi-Release: true\n\n")
+                .run();
+
+        Path src = base.resolve("src");
+
+        tb.writeJavaFiles(src,
+                          "module m { requires test.module; exports api; }",
+                          "package api; public class Api { }");
+        Path out = base.resolve("out");
+        Files.createDirectory(out);
+
+        JavadocTask task = new JavadocTask(tb);
+        task.outdir(out)
+            .options("--module-path", moduleJar.toString(),
+                     "-source", "10")
+            .files(tb.findJavaFiles(src))
+            .run(Expect.SUCCESS);
+
+        task.outdir(out)
+            .options("--module-path", moduleJar.toString(),
+                     "-source", "9")
+            .files(tb.findJavaFiles(src))
+            .run(Expect.FAIL);
+    }
+}