1 /* 2 * Copyright (c) 2014, 2019, 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 8028546 8188870 8173382 8173382 8193290 8205619 8028563 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 import java.util.Set; 45 import java.util.function.BiConsumer; 46 47 /* 48 * If not explicitly specified the latest source and latest target 49 * values are the defaults. If explicitly specified, the target value 50 * has to be greater than or equal to the source value. 51 */ 52 public class Versions { 53 54 protected JavaCompiler javacompiler; 55 protected int failedCases; 56 57 public Versions() throws IOException { 58 javacompiler = ToolProvider.getSystemJavaCompiler(); 59 genSourceFiles(); 60 failedCases = 0; 61 } 62 63 public static void main(String... args) throws IOException { 64 Versions versions = new Versions(); 65 versions.run(); 66 } 67 68 public static final Set<String> RETIRED_SOURCES = 69 Set.of("1.2", "1.3", "1.4", "1.5", "1.6"); 70 71 public static final Set<String> VALID_SOURCES = 72 Set.of("1.7", "1.8", "1.9", "1.10", "11", "12", "13", "14", "15"); 73 74 public static final String LATEST_MAJOR_VERSION = "59.0"; 75 76 static enum SourceTarget { 77 SEVEN(true, "51.0", "7", Versions::checksrc17), 78 EIGHT(true, "52.0", "8", Versions::checksrc18), 79 NINE(true, "53.0", "9", Versions::checksrc19), 80 TEN(true, "54.0", "10", Versions::checksrc110), 81 ELEVEN(false, "55.0", "11", Versions::checksrc111), 82 TWELVE(false, "56.0", "12", Versions::checksrc112), 83 THIRTEEN(false, "57.0", "13", Versions::checksrc113), 84 FOURTEEN(false, "58.0", "14", Versions::checksrc114), 85 FIFTEEN(false, "59.0", "15", Versions::checksrc115); 86 87 private final boolean dotOne; 88 private final String classFileVer; 89 private final String target; 90 private final BiConsumer<Versions, String[]> checker; 91 92 private SourceTarget(boolean dotOne, String classFileVer, String target, 93 BiConsumer<Versions, String[]> checker) { 94 this.dotOne = dotOne; 95 this.classFileVer = classFileVer; 96 this.target = target; 97 this.checker = checker; 98 } 99 100 public void checksrc(Versions version, String... args) { 101 checker.accept(version, args); 102 } 103 104 public boolean dotOne() { 105 return dotOne; 106 } 107 108 public String classFileVer() { 109 return classFileVer; 110 } 111 112 public String target() { 113 return target; 114 } 115 } 116 117 void run() { 118 String TC = ""; 119 System.out.println("Version.java: Starting"); 120 121 check(LATEST_MAJOR_VERSION); 122 for (String source : VALID_SOURCES) { 123 check(LATEST_MAJOR_VERSION, "-source " + source); 124 } 125 126 // Verify that a -source value less than a -target value is 127 // accepted and that the resulting class files are dependent 128 // on the target setting alone. 129 SourceTarget[] sourceTargets = SourceTarget.values(); 130 for (int i = 0; i < sourceTargets.length; i++) { 131 SourceTarget st = sourceTargets[i]; 132 String classFileVer = st.classFileVer(); 133 String target = st.target(); 134 boolean dotOne = st.dotOne(); 135 check_source_target(dotOne, classFileVer, target, target); 136 for (int j = i; j > 0; j--) { 137 String source = sourceTargets[j].target(); 138 check_source_target(dotOne, classFileVer, source, target); 139 } 140 } 141 142 // Verify acceptance of different combinations of -source N, 143 // -target M; N <= M 144 for (int i = 0; i < sourceTargets.length; i++) { 145 SourceTarget st = sourceTargets[i]; 146 147 st.checksrc(this, "-source " + st.target()); 148 st.checksrc(this, "-source " + st.target(), "-target " + st.target()); 149 150 if (st.dotOne()) { 151 st.checksrc(this, "-source 1." + st.target()); 152 st.checksrc(this, "-source 1." + st.target(), "-target 1." + st.target()); 153 } 154 155 if (i == sourceTargets.length) { 156 // Can use -target without -source setting only for 157 // most recent target since the most recent source is 158 // the default. 159 st.checksrc(this, "-target " + st.target()); 160 161 if (!st.classFileVer().equals(LATEST_MAJOR_VERSION)) { 162 throw new RuntimeException(st + 163 "does not have class file version" + 164 LATEST_MAJOR_VERSION); 165 } 166 } 167 } 168 169 // Verify that -source N -target (N-1) is rejected 170 for (int i = 1 /* Skip zeroth value */; i < sourceTargets.length; i++) { 171 fail("-source " + sourceTargets[i].target(), 172 "-target " + sourceTargets[i-1].target(), 173 "Base.java"); 174 } 175 176 // Previously supported source/target values 177 for (String source : RETIRED_SOURCES) { 178 fail("-source " + source, "-target " + source, "Base.java"); 179 } 180 181 if (failedCases > 0) { 182 System.err.println("failedCases = " + String.valueOf(failedCases)); 183 throw new Error("Test failed"); 184 } 185 186 } 187 188 protected void printargs(String fname,String... args) { 189 System.out.printf("test: %s", fname); 190 for (String onearg : args) { 191 System.out.printf(" %s", onearg); 192 } 193 System.out.printf("\n", fname); 194 } 195 196 protected void check_source_target(boolean dotOne, String... args) { 197 printargs("check_source_target", args); 198 check_target(dotOne, args[0], args[1], args[2]); 199 if (dotOne) { 200 check_target(dotOne, args[0], "1." + args[1], args[2]); 201 } 202 } 203 204 protected void check_target(boolean dotOne, String... args) { 205 check(args[0], "-source " + args[1], "-target " + args[2]); 206 if (dotOne) { 207 check(args[0], "-source " + args[1], "-target 1." + args[2]); 208 } 209 } 210 211 protected void check(String major, String... args) { 212 printargs("check", args); 213 List<String> jcargs = new ArrayList<>(); 214 jcargs.add("-Xlint:-options"); 215 216 // add in args conforming to List requrements of JavaCompiler 217 for (String onearg : args) { 218 String[] fields = onearg.split(" "); 219 for (String onefield : fields) { 220 jcargs.add(onefield); 221 } 222 } 223 224 boolean creturn = compile("Base.java", jcargs); 225 if (!creturn) { 226 // compilation errors note and return.. assume no class file 227 System.err.println("check: Compilation Failed"); 228 System.err.println("\t classVersion:\t" + major); 229 System.err.println("\t arguments:\t" + jcargs); 230 failedCases++; 231 232 } else if (!checkClassFileVersion("Base.class", major)) { 233 failedCases++; 234 } 235 } 236 237 protected void checksrc17(String... args) { 238 printargs("checksrc17", args); 239 int asize = args.length; 240 String[] newargs = new String[asize+1]; 241 System.arraycopy(args, 0, newargs,0 , asize); 242 newargs[asize] = "New17.java"; 243 pass(newargs); 244 newargs[asize] = "New18.java"; 245 fail(newargs); 246 } 247 248 protected void checksrc18(String... args) { 249 printargs("checksrc18", args); 250 int asize = args.length; 251 String[] newargs = new String[asize+1]; 252 System.arraycopy(args, 0, newargs,0 , asize); 253 newargs[asize] = "New17.java"; 254 pass(newargs); 255 newargs[asize] = "New18.java"; 256 pass(newargs); 257 newargs[asize] = "New110.java"; 258 fail(newargs); 259 } 260 261 protected void checksrc19(String... args) { 262 printargs("checksrc19", args); 263 checksrc18(args); 264 } 265 266 protected void checksrc110(String... args) { 267 printargs("checksrc110", args); 268 int asize = args.length; 269 String[] newargs = new String[asize+1]; 270 System.arraycopy(args, 0, newargs,0 , asize); 271 newargs[asize] = "New17.java"; 272 pass(newargs); 273 newargs[asize] = "New18.java"; 274 pass(newargs); 275 newargs[asize] = "New110.java"; 276 pass(newargs); 277 } 278 279 protected void checksrc111(String... args) { 280 printargs("checksrc111", args); 281 int asize = args.length; 282 String[] newargs = new String[asize+1]; 283 System.arraycopy(args, 0, newargs,0 , asize); 284 newargs[asize] = "New17.java"; 285 pass(newargs); 286 newargs[asize] = "New18.java"; 287 pass(newargs); 288 newargs[asize] = "New110.java"; 289 pass(newargs); 290 newargs[asize] = "New111.java"; 291 pass(newargs); 292 } 293 294 protected void checksrc112(String... args) { 295 printargs("checksrc112", args); 296 checksrc111(args); 297 } 298 299 protected void checksrc113(String... args) { 300 printargs("checksrc113", args); 301 checksrc111(args); 302 } 303 304 protected void checksrc114(String... args) { 305 printargs("checksrc114", args); 306 checksrc111(args); 307 } 308 309 protected void checksrc115(String... args) { 310 printargs("checksrc115", args); 311 checksrc111(args); 312 } 313 314 protected void pass(String... args) { 315 printargs("pass", args); 316 317 List<String> jcargs = new ArrayList<String>(); 318 jcargs.add("-Xlint:-options"); 319 320 // add in args conforming to List requrements of JavaCompiler 321 for (String onearg : args) { 322 String[] fields = onearg.split(" "); 323 for (String onefield : fields) { 324 jcargs.add(onefield); 325 } 326 } 327 328 // empty list is error 329 if (jcargs.isEmpty()) { 330 System.err.println("error: test error in pass() - No arguments"); 331 System.err.println("\t arguments:\t" + jcargs); 332 failedCases++; 333 return; 334 } 335 336 // the last argument is the filename *.java 337 String filename = jcargs.get(jcargs.size() - 1); 338 jcargs.remove(jcargs.size() - 1); 339 340 boolean creturn = compile(filename, jcargs); 341 // expect a compilation failure, failure if otherwise 342 if (!creturn) { 343 System.err.println("pass: Compilation erroneously failed"); 344 System.err.println("\t arguments:\t" + jcargs); 345 System.err.println("\t file :\t" + filename); 346 failedCases++; 347 348 } 349 350 } 351 352 protected void fail(String... args) { 353 printargs("fail", args); 354 355 List<String> jcargs = new ArrayList<String>(); 356 jcargs.add("-Xlint:-options"); 357 358 // add in args conforming to List requrements of JavaCompiler 359 for (String onearg : args) { 360 String[] fields = onearg.split(" "); 361 for (String onefield : fields) { 362 jcargs.add(onefield); 363 } 364 } 365 366 // empty list is error 367 if (jcargs.isEmpty()) { 368 System.err.println("error: test error in fail()- No arguments"); 369 System.err.println("\t arguments:\t" + jcargs); 370 failedCases++; 371 return; 372 } 373 374 // the last argument is the filename *.java 375 String filename = jcargs.get(jcargs.size() - 1); 376 jcargs.remove(jcargs.size() - 1); 377 378 boolean creturn = compile(filename, jcargs); 379 // expect a compilation failure, failure if otherwise 380 if (creturn) { 381 System.err.println("fail: Compilation erroneously succeeded"); 382 System.err.println("\t arguments:\t" + jcargs); 383 System.err.println("\t file :\t" + filename); 384 failedCases++; 385 } 386 } 387 388 protected boolean compile(String sourceFile, List<String>options) { 389 JavaCompiler.CompilationTask jctask; 390 try (StandardJavaFileManager fm = javacompiler.getStandardFileManager(null, null, null)) { 391 Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(sourceFile); 392 393 jctask = javacompiler.getTask( 394 null, // Writer 395 fm, // JavaFileManager 396 null, // DiagnosticListener 397 options, // Iterable<String> 398 null, // Iterable<String> classes 399 files); // Iterable<? extends JavaFileObject> 400 401 try { 402 return jctask.call(); 403 } catch (IllegalStateException e) { 404 System.err.println(e); 405 return false; 406 } 407 } catch (IOException e) { 408 throw new Error(e); 409 } 410 } 411 412 protected void writeSourceFile(String fileName, String body) throws IOException{ 413 try (Writer fw = new FileWriter(fileName)) { 414 fw.write(body); 415 } 416 } 417 418 protected void genSourceFiles() throws IOException{ 419 /* Create a file that executes with all supported versions. */ 420 writeSourceFile("Base.java","public class Base { }\n"); 421 422 /* 423 * Create a file with a new feature in 1.7, not in 1.6 : "<>" 424 */ 425 writeSourceFile("New17.java", 426 "import java.util.List;\n" + 427 "import java.util.ArrayList;\n" + 428 "class New17 { List<String> s = new ArrayList<>(); }\n" 429 ); 430 431 /* 432 * Create a file with a new feature in 1.8, not in 1.7 : lambda 433 */ 434 writeSourceFile("New18.java", 435 "public class New18 { \n" + 436 " void m() { \n" + 437 " new Thread(() -> { }); \n" + 438 " } \n" + 439 "} \n" 440 ); 441 442 /* 443 * Create a file with a new feature in 1.10, not in 1.9 : var 444 */ 445 writeSourceFile("New110.java", 446 "public class New110 { \n" + 447 " void m() { \n" + 448 " var tmp = new Thread(() -> { }); \n" + 449 " } \n" + 450 "} \n" 451 ); 452 453 /* 454 * Create a file with a new feature in 11, not in 10 : var for lambda parameters 455 */ 456 writeSourceFile("New111.java", 457 "public class New111 { \n" + 458 " static java.util.function.Function<String,String> f = (var x) -> x.substring(0);\n" + 459 " void m(String name) { \n" + 460 " var tmp = new Thread(() -> { }, f.apply(name)); \n" + 461 " } \n" + 462 "} \n" 463 ); 464 } 465 466 protected boolean checkClassFileVersion 467 (String filename,String classVersionNumber) { 468 ByteBuffer bb = ByteBuffer.allocate(1024); 469 try (FileChannel fc = new FileInputStream(filename).getChannel()) { 470 bb.clear(); 471 if (fc.read(bb) < 0) 472 throw new IOException("Could not read from file : " + filename); 473 bb.flip(); 474 int minor = bb.getShort(4); 475 int major = bb.getShort(6); 476 String fileVersion = major + "." + minor; 477 if (fileVersion.equals(classVersionNumber)) { 478 return true; 479 } else { 480 System.err.println("checkClassFileVersion : Failed"); 481 System.err.println("\tclassfile version mismatch"); 482 System.err.println("\texpected : " + classVersionNumber); 483 System.err.println("\tfound : " + fileVersion); 484 return false; 485 } 486 } 487 catch (IOException e) { 488 System.err.println("checkClassFileVersion : Failed"); 489 System.err.println("\terror :\t" + e.getMessage()); 490 System.err.println("\tfile:\tfilename"); 491 } 492 return false; 493 } 494 } 495