Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 2010, 2013, 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 6960424 8022161

  * @summary new option -Xpkginfo for better control of when package-info.class

  *          is generated, also ensures no failures if package-info.java is

  *          not available.

  */

 import java.io.*;

 import java.util.*;

 public class TestPkgInfo {

     enum OptKind {

         NONE(null),

         ALWAYS("-Xpkginfo:always"),

         NONEMPTY("-Xpkginfo:nonempty"),

         LEGACY("-Xpkginfo:legacy");

         OptKind(String opt) { this.opt = opt; }

         final String opt;

     };

     public static void main(String... args) throws Exception {

         new TestPkgInfo().run(args);

     }

     public void run(String... args) throws Exception {

         testPositive();

         testNoExceptions();

     }

     public void testPositive(String... args) throws Exception {

         boolean[] booleanValues = { false, true };

         for (OptKind ok: OptKind.values()) {

             for (boolean sr: booleanValues) {

                 for (boolean cr: booleanValues) {

                     for (boolean rr: booleanValues) {

                         try {

                             test(ok, sr, cr, rr);

                         } catch (Exception e) {

                             error("Exception: " + e);

                         }

                         if (errors > 0) throw new AssertionError();

                     }

                 }

             }

         }

         if (errors > 0)

             throw new Exception(errors + " errors occurred");

     }

     /** this should throw no exceptions **/

     void testNoExceptions() throws Exception {

         count++;

         System.err.println("Test " + count + ": ALWAYS nofile");

         StringBuilder sb = new StringBuilder();

         sb.append("package test; class Hello{}");

         // test specific tmp directory

         File tmpDir = new File("tmp.test" + count);

         File classesDir = new File(tmpDir, "classes");

         classesDir.mkdirs();

         File javafile = new File(new File(tmpDir, "src"), "Hello.java");

         writeFile(javafile, sb.toString());

         // build up list of options and files to be compiled

         List<String> opts = new ArrayList<>();

         List<File> files = new ArrayList<>();

         opts.add("-d");

         opts.add(classesDir.getPath());

         opts.add("-Xpkginfo:always");

         files.add(javafile);

         compile(opts, files);

     }

     void test(OptKind ok, boolean sr, boolean cr, boolean rr) throws Exception {

         count++;

         System.err.println("Test " + count + ": ok:" + ok + " sr:" + sr + " cr:" + cr + " rr:" + rr);

         StringBuilder sb = new StringBuilder();

         // create annotated package statement with all combinations of retention policy

         if (sr) sb.append("@SR\n");

         if (cr) sb.append("@CR\n");

         if (rr) sb.append("@RR\n");

         sb.append("package p;\n");

         sb.append("\n");

         sb.append("import java.lang.annotation.*;\n");

         sb.append("@Retention(RetentionPolicy.SOURCE)  @interface SR { }\n");

         sb.append("@Retention(RetentionPolicy.CLASS)   @interface CR { }\n");

         sb.append("@Retention(RetentionPolicy.RUNTIME) @interface RR { }\n");

         // test specific tmp directory

         File tmpDir = new File("tmp.test" + count);

         File classesDir = new File(tmpDir, "classes");

         classesDir.mkdirs();

         File pkginfo_java = new File(new File(tmpDir, "src"), "package-info.java");

         writeFile(pkginfo_java, sb.toString());

         // build up list of options and files to be compiled

         List<String> opts = new ArrayList<>();

         List<File> files = new ArrayList<>();

         opts.add("-d");

         opts.add(classesDir.getPath());

         if (ok.opt != null)

             opts.add(ok.opt);

         //opts.add("-verbose");

             files.add(pkginfo_java);

         compile(opts, files);

         File pkginfo_class = new File(new File(classesDir, "p"), "package-info.class");

         boolean exists = pkginfo_class.exists();

         boolean expected;

         switch (ok) {

             case ALWAYS:

                 expected = true;

                 break;

             case LEGACY:

             case NONE:

                 expected = (sr || cr || rr ); // any annotation

                 break;

             case NONEMPTY:

                 expected = (cr || rr ); // any annotation in class file

                 break;

             default:

                 throw new IllegalStateException();

         }

         if (exists && !expected)

             error("package-info.class found but not expected");

         if (!exists && expected)

             error("package-info.class expected but not found");

     }

     /** Compile files with options provided. */

     void compile(List<String> opts, List<File> files) throws Exception {

         System.err.println("javac: " + opts + " " + files);

         List<String> args = new ArrayList<>();

         args.addAll(opts);

         for (File f: files)

             args.add(f.getPath());

         StringWriter sw = new StringWriter();

         PrintWriter pw = new PrintWriter(sw);

         int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]), pw);

         pw.flush();

         if (sw.getBuffer().length() > 0)

             System.err.println(sw.toString());

         if (rc != 0)

             throw new Exception("compilation failed: rc=" + rc);

     }

     /** Write a file with a given body. */

     void writeFile(File f, String body) throws Exception {

         if (f.getParentFile() != null)

             f.getParentFile().mkdirs();

         Writer out = new FileWriter(f);

         try {

             out.write(body);

         } finally {

             out.close();

         }

     }

     /** Report an error. */

     void error(String msg) {

         System.err.println("Error: " + msg);

         errors++;

     }

     /** Test case counter. */

     int count;

     /** Number of errors found. */

     int errors;

 }