1 /*
   2  * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 4981566 5028634 5094412 6304984 7025786 7025789 8001112 8028545 8000961 8030610
  27  * @summary Check interpretation of -target and -source options
  28  * @modules java.compiler
  29  *          jdk.compiler
  30  * @run main Versions
  31  */
  32 
  33 import java.io.*;
  34 import java.nio.*;
  35 import java.nio.channels.*;
  36 
  37 import javax.tools.JavaCompiler;
  38 import javax.tools.ToolProvider;
  39 import javax.tools.JavaFileObject;
  40 import javax.tools.StandardJavaFileManager;
  41 import java.util.List;
  42 import java.util.ArrayList;
  43 import java.util.Arrays;
  44 
  45 
  46 public class Versions {
  47 
  48     protected JavaCompiler javacompiler;
  49     protected int failedCases;
  50 
  51     public Versions() throws IOException {
  52         javacompiler = ToolProvider.getSystemJavaCompiler();
  53         genSourceFiles();
  54         failedCases = 0;
  55     }
  56 
  57     public static void main(String... args) throws IOException {
  58         Versions versions = new Versions();
  59         versions.run();
  60     }
  61 
  62     void run() {
  63 
  64         String TC = "";
  65         System.out.println("Version.java: Starting");
  66 
  67         check("53.0");
  68         check("53.0", "-source 1.6");
  69         check("53.0", "-source 1.7");
  70         check("53.0", "-source 1.8");
  71         check("53.0", "-source 1.9");
  72 
  73         check_source_target("50.0", "6", "6");
  74         check_source_target("51.0", "6", "7");
  75         check_source_target("51.0", "7", "7");
  76         check_source_target("52.0", "6", "8");
  77         check_source_target("52.0", "7", "8");
  78         check_source_target("52.0", "8", "8");
  79         check_source_target("53.0", "6", "9");
  80         check_source_target("53.0", "7", "9");
  81         check_source_target("53.0", "8", "9");
  82         check_source_target("53.0", "9", "9");
  83 
  84         checksrc16("-source 1.6");
  85         checksrc16("-source 6");
  86         checksrc16("-source 1.6", "-target 1.6");
  87         checksrc16("-source 6", "-target 6");
  88         checksrc17("-source 1.7");
  89         checksrc17("-source 7");
  90         checksrc17("-source 1.7", "-target 1.7");
  91         checksrc17("-source 7", "-target 7");
  92         checksrc18("-source 1.8");
  93         checksrc18("-source 8");
  94         checksrc18("-source 1.8", "-target 1.8");
  95         checksrc18("-source 8", "-target 8");
  96         checksrc19();
  97         checksrc19("-source 1.9");
  98         checksrc19("-source 9");
  99         checksrc19("-source 1.9", "-target 1.9");
 100         checksrc19("-source 9", "-target 9");
 101         checksrc19("-target 1.9");
 102         checksrc19("-target 9");
 103 
 104         fail("-source 7", "-target 1.6", "Base.java");
 105         fail("-source 8", "-target 1.6", "Base.java");
 106         fail("-source 8", "-target 1.7", "Base.java");
 107         fail("-source 9", "-target 1.7", "Base.java");
 108         fail("-source 9", "-target 1.8", "Base.java");
 109 
 110         fail("-source 1.5", "-target 1.5", "Base.java");
 111         fail("-source 1.4", "-target 1.4", "Base.java");
 112         fail("-source 1.3", "-target 1.3", "Base.java");
 113         fail("-source 1.2", "-target 1.2", "Base.java");
 114 
 115         if (failedCases > 0) {
 116             System.err.println("failedCases = " + String.valueOf(failedCases));
 117             throw new Error("Test failed");
 118         }
 119 
 120     }
 121 
 122     protected void printargs(String fname,String... args) {
 123         System.out.printf("test: %s", fname);
 124         for (String onearg : args) {
 125             System.out.printf(" %s", onearg);
 126         }
 127         System.out.printf("\n", fname);
 128     }
 129 
 130     protected void check_source_target(String... args) {
 131         printargs("check_source_target", args);
 132         check_target(args[0], args[1], args[2]);
 133         check_target(args[0], "1." + args[1], args[2]);
 134     }
 135 
 136     protected void check_target(String... args) {
 137         check(args[0], "-source " + args[1], "-target " + args[2]);
 138         check(args[0], "-source " + args[1], "-target 1." + args[2]);
 139     }
 140 
 141     protected void check(String major, String... args) {
 142         printargs("check", args);
 143         List<String> jcargs = new ArrayList<String>();
 144         jcargs.add("-Xlint:-options");
 145 
 146         // add in args conforming to List requrements of JavaCompiler
 147         for (String onearg : args) {
 148             String[] fields = onearg.split(" ");
 149             for (String onefield : fields) {
 150                 jcargs.add(onefield);
 151             }
 152         }
 153 
 154         boolean creturn = compile("Base.java", jcargs);
 155         if (!creturn) {
 156             // compilation errors note and return.. assume no class file
 157             System.err.println("check: Compilation Failed");
 158             System.err.println("\t classVersion:\t" + major);
 159             System.err.println("\t arguments:\t" + jcargs);
 160             failedCases++;
 161 
 162         } else if (!checkClassFileVersion("Base.class", major)) {
 163             failedCases++;
 164         }
 165     }
 166 
 167     protected void checksrc16(String... args) {
 168         printargs("checksrc16", args);
 169         int asize = args.length;
 170         String[] newargs = new String[asize + 1];
 171         System.arraycopy(args, 0, newargs, 0, asize);
 172         newargs[asize] = "Base.java";
 173         pass(newargs);
 174         newargs[asize] = "New17.java";
 175         fail(newargs);
 176     }
 177 
 178     protected void checksrc17(String... args) {
 179         printargs("checksrc17", args);
 180         int asize = args.length;
 181         String[] newargs = new String[asize+1];
 182         System.arraycopy(args, 0, newargs,0 , asize);
 183         newargs[asize] = "New17.java";
 184         pass(newargs);
 185         newargs[asize] = "New18.java";
 186         fail(newargs);
 187     }
 188 
 189     protected void checksrc18(String... args) {
 190         printargs("checksrc18", args);
 191         int asize = args.length;
 192         String[] newargs = new String[asize+1];
 193         System.arraycopy(args, 0, newargs,0 , asize);
 194         newargs[asize] = "New17.java";
 195         pass(newargs);
 196         newargs[asize] = "New18.java";
 197         pass(newargs);
 198     }
 199 
 200     protected void checksrc19(String... args) {
 201         printargs("checksrc19", args);
 202         checksrc18(args);
 203     }
 204 
 205     protected void pass(String... args) {
 206         printargs("pass", args);
 207 
 208         List<String> jcargs = new ArrayList<String>();
 209         jcargs.add("-Xlint:-options");
 210 
 211         // add in args conforming to List requrements of JavaCompiler
 212         for (String onearg : args) {
 213             String[] fields = onearg.split(" ");
 214             for (String onefield : fields) {
 215                 jcargs.add(onefield);
 216             }
 217         }
 218 
 219         // empty list is error
 220         if (jcargs.isEmpty()) {
 221             System.err.println("error: test error in pass() - No arguments");
 222             System.err.println("\t arguments:\t" + jcargs);
 223             failedCases++;
 224             return;
 225         }
 226 
 227         // the last argument is the filename *.java
 228         String filename = jcargs.get(jcargs.size() - 1);
 229         jcargs.remove(jcargs.size() - 1);
 230 
 231         boolean creturn = compile(filename, jcargs);
 232         // expect a compilation failure, failure if otherwise
 233         if (!creturn) {
 234             System.err.println("pass: Compilation erroneously failed");
 235             System.err.println("\t arguments:\t" + jcargs);
 236             System.err.println("\t file     :\t" + filename);
 237             failedCases++;
 238 
 239         }
 240 
 241     }
 242 
 243     protected void fail(String... args) {
 244         printargs("fail", args);
 245 
 246         List<String> jcargs = new ArrayList<String>();
 247         jcargs.add("-Xlint:-options");
 248 
 249         // add in args conforming to List requrements of JavaCompiler
 250         for (String onearg : args) {
 251             String[] fields = onearg.split(" ");
 252             for (String onefield : fields) {
 253                 jcargs.add(onefield);
 254             }
 255         }
 256 
 257         // empty list is error
 258         if (jcargs.isEmpty()) {
 259             System.err.println("error: test error in fail()- No arguments");
 260             System.err.println("\t arguments:\t" + jcargs);
 261             failedCases++;
 262             return;
 263         }
 264 
 265         // the last argument is the filename *.java
 266         String filename = jcargs.get(jcargs.size() - 1);
 267         jcargs.remove(jcargs.size() - 1);
 268 
 269         boolean creturn = compile(filename, jcargs);
 270         // expect a compilation failure, failure if otherwise
 271         if (creturn) {
 272             System.err.println("fail: Compilation erroneously succeeded");
 273             System.err.println("\t arguments:\t" + jcargs);
 274             System.err.println("\t file     :\t" + filename);
 275             failedCases++;
 276         }
 277     }
 278 
 279     protected boolean compile(String sourceFile, List<String>options) {
 280         JavaCompiler.CompilationTask jctask;
 281         try (StandardJavaFileManager fm = javacompiler.getStandardFileManager(null, null, null)) {
 282             Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(sourceFile);
 283 
 284             jctask = javacompiler.getTask(
 285                 null,    // Writer
 286                 fm,      // JavaFileManager
 287                 null,    // DiagnosticListener
 288                 options, // Iterable<String>
 289                 null,    // Iterable<String> classes
 290                 files);  // Iterable<? extends JavaFileObject>
 291 
 292             try {
 293                 return jctask.call();
 294             } catch (IllegalStateException e) {
 295                 System.err.println(e);
 296                 return false;
 297             }
 298         } catch (IOException e) {
 299             throw new Error(e);
 300         }
 301     }
 302 
 303     protected void writeSourceFile(String fileName, String body) throws IOException{
 304         try (Writer fw = new FileWriter(fileName)) {
 305             fw.write(body);
 306         }
 307     }
 308 
 309     protected void genSourceFiles() throws IOException{
 310         /* Create a file that executes with all supported versions. */
 311         writeSourceFile("Base.java","public class Base { }\n");
 312 
 313         /*
 314          * Create a file with a new feature in 1.7, not in 1.6 : "<>"
 315          */
 316         writeSourceFile("New17.java",
 317             "import java.util.List;\n" +
 318             "import java.util.ArrayList;\n" +
 319             "class New17 { List<String> s = new ArrayList<>(); }\n"
 320         );
 321 
 322         /*
 323          * Create a file with a new feature in 1.8, not in 1.7 : lambda
 324          */
 325         writeSourceFile("New18.java",
 326             "public class New18 { \n" +
 327             "    void m() { \n" +
 328             "    new Thread(() -> { }); \n" +
 329             "    } \n" +
 330             "} \n"
 331         );
 332 
 333     }
 334 
 335     protected boolean checkClassFileVersion
 336         (String filename,String classVersionNumber) {
 337         ByteBuffer bb = ByteBuffer.allocate(1024);
 338         try (FileChannel fc = new FileInputStream(filename).getChannel()) {
 339             bb.clear();
 340             if (fc.read(bb) < 0)
 341                 throw new IOException("Could not read from file : " + filename);
 342             bb.flip();
 343             int minor = bb.getShort(4);
 344             int major = bb.getShort(6);
 345             String fileVersion = major + "." + minor;
 346             if (fileVersion.equals(classVersionNumber)) {
 347                 return true;
 348             } else {
 349                 System.err.println("checkClassFileVersion : Failed");
 350                 System.err.println("\tclassfile version mismatch");
 351                 System.err.println("\texpected : " + classVersionNumber);
 352                 System.err.println("\tfound    : " + fileVersion);
 353                 return false;
 354             }
 355         }
 356         catch (IOException e) {
 357             System.err.println("checkClassFileVersion : Failed");
 358             System.err.println("\terror :\t" + e.getMessage());
 359             System.err.println("\tfile:\tfilename");
 360         }
 361         return false;
 362     }
 363 }
 364