1 /*
2 * Copyright (c) 2014, 2018, 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
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");
70
71 public static final Set<String> VALID_SOURCES =
72 Set.of("1.6", "1.7", "1.8", "1.9", "1.10", "11", "12");
73
74 public static final String LATEST_MAJOR_VERSION = "56.0";
75
76 static enum SourceTarget {
77 SIX(true, "50.0", "6", Versions::checksrc16),
78 SEVEN(true, "51.0", "7", Versions::checksrc17),
79 EIGHT(true, "52.0", "8", Versions::checksrc18),
80 NINE(true, "53.0", "9", Versions::checksrc19),
81 TEN(true, "54.0", "10", Versions::checksrc110),
82 ELEVEN(false, "55.0", "11", Versions::checksrc111),
83 TWELVE(false, "56.0", "12", Versions::checksrc112);
84
85 private final boolean dotOne;
86 private final String classFileVer;
87 private final String target;
88 private final BiConsumer<Versions, String[]> checker;
89
90 private SourceTarget(boolean dotOne, String classFileVer, String target,
91 BiConsumer<Versions, String[]> checker) {
92 this.dotOne = dotOne;
93 this.classFileVer = classFileVer;
94 this.target = target;
95 this.checker = checker;
96 }
97
98 public void checksrc(Versions version, String... args) {
99 checker.accept(version, args);
100 }
101
102 public boolean dotOne() {
103 return dotOne;
104 }
105
106 public String classFileVer() {
107 return classFileVer;
108 }
109
110 public String target() {
111 return target;
112 }
113 }
114
115 void run() {
116 String TC = "";
117 System.out.println("Version.java: Starting");
118
119 check(LATEST_MAJOR_VERSION);
120 for (String source : VALID_SOURCES) {
121 check(LATEST_MAJOR_VERSION, "-source " + source);
122 }
123
124 // Verify that a -source value less than a -target value is
125 // accepted and that the resulting class files are dependent
126 // on the target setting alone.
127 SourceTarget[] sourceTargets = SourceTarget.values();
128 for (int i = 0; i < sourceTargets.length; i++) {
129 SourceTarget st = sourceTargets[i];
130 String classFileVer = st.classFileVer();
131 String target = st.target();
132 boolean dotOne = st.dotOne();
133 check_source_target(dotOne, classFileVer, target, target);
134 for (int j = i; j > 0; j--) {
135 String source = sourceTargets[j].target();
136 check_source_target(dotOne, classFileVer, source, target);
137 }
138 }
139
140 // Verify acceptance of different combinations of -source N,
141 // -target M; N <= M
142 for (int i = 0; i < sourceTargets.length; i++) {
143 SourceTarget st = sourceTargets[i];
144
145 st.checksrc(this, "-source " + st.target());
146 st.checksrc(this, "-source " + st.target(), "-target " + st.target());
147
148 if (st.dotOne()) {
149 st.checksrc(this, "-source 1." + st.target());
150 st.checksrc(this, "-source 1." + st.target(), "-target 1." + st.target());
151 }
152
153 if (i == sourceTargets.length) {
154 // Can use -target without -source setting only for
155 // most recent target since the most recent source is
156 // the default.
157 st.checksrc(this, "-target " + st.target());
158
159 if (!st.classFileVer().equals(LATEST_MAJOR_VERSION)) {
160 throw new RuntimeException(st +
161 "does not have class file version" +
162 LATEST_MAJOR_VERSION);
163 }
164 }
165 }
166
167 // Verify that -source N -target (N-1) is rejected
168 for (int i = 1 /* Skip zeroth value */; i < sourceTargets.length; i++) {
169 fail("-source " + sourceTargets[i].target(),
170 "-target " + sourceTargets[i-1].target(),
171 "Base.java");
172 }
173
174 // Previously supported source/target values
175 for (String source : RETIRED_SOURCES) {
176 fail("-source " + source, "-target " + source, "Base.java");
177 }
178
179 if (failedCases > 0) {
180 System.err.println("failedCases = " + String.valueOf(failedCases));
181 throw new Error("Test failed");
182 }
183
184 }
185
186 protected void printargs(String fname,String... args) {
187 System.out.printf("test: %s", fname);
188 for (String onearg : args) {
189 System.out.printf(" %s", onearg);
190 }
191 System.out.printf("\n", fname);
192 }
193
194 protected void check_source_target(boolean dotOne, String... args) {
195 printargs("check_source_target", args);
196 check_target(dotOne, args[0], args[1], args[2]);
197 if (dotOne) {
198 check_target(dotOne, args[0], "1." + args[1], args[2]);
199 }
200 }
201
202 protected void check_target(boolean dotOne, String... args) {
203 check(args[0], "-source " + args[1], "-target " + args[2]);
204 if (dotOne) {
205 check(args[0], "-source " + args[1], "-target 1." + args[2]);
206 }
207 }
208
209 protected void check(String major, String... args) {
210 printargs("check", args);
211 List<String> jcargs = new ArrayList<>();
212 jcargs.add("-Xlint:-options");
213
214 // add in args conforming to List requrements of JavaCompiler
215 for (String onearg : args) {
216 String[] fields = onearg.split(" ");
217 for (String onefield : fields) {
218 jcargs.add(onefield);
219 }
220 }
221
222 boolean creturn = compile("Base.java", jcargs);
223 if (!creturn) {
224 // compilation errors note and return.. assume no class file
225 System.err.println("check: Compilation Failed");
226 System.err.println("\t classVersion:\t" + major);
227 System.err.println("\t arguments:\t" + jcargs);
228 failedCases++;
229
230 } else if (!checkClassFileVersion("Base.class", major)) {
231 failedCases++;
232 }
233 }
234
235 protected void checksrc16(String... args) {
236 printargs("checksrc16", args);
237 int asize = args.length;
238 String[] newargs = new String[asize + 1];
239 System.arraycopy(args, 0, newargs, 0, asize);
240 newargs[asize] = "Base.java";
241 pass(newargs);
242 newargs[asize] = "New17.java";
243 fail(newargs);
244 }
245
246 protected void checksrc17(String... args) {
247 printargs("checksrc17", args);
248 int asize = args.length;
249 String[] newargs = new String[asize+1];
250 System.arraycopy(args, 0, newargs,0 , asize);
251 newargs[asize] = "New17.java";
252 pass(newargs);
253 newargs[asize] = "New18.java";
254 fail(newargs);
255 }
256
257 protected void checksrc18(String... args) {
258 printargs("checksrc18", args);
259 int asize = args.length;
260 String[] newargs = new String[asize+1];
261 System.arraycopy(args, 0, newargs,0 , asize);
262 newargs[asize] = "New17.java";
263 pass(newargs);
264 newargs[asize] = "New18.java";
265 pass(newargs);
266 newargs[asize] = "New110.java";
267 fail(newargs);
268 }
269
270 protected void checksrc19(String... args) {
271 printargs("checksrc19", args);
272 checksrc18(args);
273 }
274
275 protected void checksrc110(String... args) {
276 printargs("checksrc110", args);
277 int asize = args.length;
278 String[] newargs = new String[asize+1];
279 System.arraycopy(args, 0, newargs,0 , asize);
280 newargs[asize] = "New17.java";
281 pass(newargs);
282 newargs[asize] = "New18.java";
283 pass(newargs);
284 newargs[asize] = "New110.java";
285 pass(newargs);
286 }
287
288 protected void checksrc111(String... args) {
289 printargs("checksrc111", args);
290 int asize = args.length;
291 String[] newargs = new String[asize+1];
292 System.arraycopy(args, 0, newargs,0 , asize);
293 newargs[asize] = "New17.java";
294 pass(newargs);
295 newargs[asize] = "New18.java";
296 pass(newargs);
297 newargs[asize] = "New110.java";
298 pass(newargs);
299 newargs[asize] = "New111.java";
300 pass(newargs);
301 }
302
303 protected void checksrc112(String... args) {
304 printargs("checksrc112", args);
305 checksrc111(args);
306 }
307
308 protected void pass(String... args) {
309 printargs("pass", args);
310
311 List<String> jcargs = new ArrayList<String>();
312 jcargs.add("-Xlint:-options");
313
314 // add in args conforming to List requrements of JavaCompiler
315 for (String onearg : args) {
316 String[] fields = onearg.split(" ");
317 for (String onefield : fields) {
318 jcargs.add(onefield);
319 }
320 }
321
322 // empty list is error
323 if (jcargs.isEmpty()) {
324 System.err.println("error: test error in pass() - No arguments");
325 System.err.println("\t arguments:\t" + jcargs);
326 failedCases++;
327 return;
328 }
329
330 // the last argument is the filename *.java
331 String filename = jcargs.get(jcargs.size() - 1);
332 jcargs.remove(jcargs.size() - 1);
333
334 boolean creturn = compile(filename, jcargs);
335 // expect a compilation failure, failure if otherwise
336 if (!creturn) {
337 System.err.println("pass: Compilation erroneously failed");
338 System.err.println("\t arguments:\t" + jcargs);
339 System.err.println("\t file :\t" + filename);
340 failedCases++;
341
342 }
343
344 }
345
346 protected void fail(String... args) {
347 printargs("fail", args);
348
349 List<String> jcargs = new ArrayList<String>();
350 jcargs.add("-Xlint:-options");
351
352 // add in args conforming to List requrements of JavaCompiler
353 for (String onearg : args) {
354 String[] fields = onearg.split(" ");
355 for (String onefield : fields) {
356 jcargs.add(onefield);
357 }
358 }
359
360 // empty list is error
361 if (jcargs.isEmpty()) {
362 System.err.println("error: test error in fail()- No arguments");
363 System.err.println("\t arguments:\t" + jcargs);
364 failedCases++;
365 return;
366 }
367
368 // the last argument is the filename *.java
369 String filename = jcargs.get(jcargs.size() - 1);
370 jcargs.remove(jcargs.size() - 1);
371
372 boolean creturn = compile(filename, jcargs);
373 // expect a compilation failure, failure if otherwise
374 if (creturn) {
375 System.err.println("fail: Compilation erroneously succeeded");
376 System.err.println("\t arguments:\t" + jcargs);
377 System.err.println("\t file :\t" + filename);
378 failedCases++;
379 }
380 }
381
382 protected boolean compile(String sourceFile, List<String>options) {
383 JavaCompiler.CompilationTask jctask;
384 try (StandardJavaFileManager fm = javacompiler.getStandardFileManager(null, null, null)) {
385 Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(sourceFile);
386
387 jctask = javacompiler.getTask(
388 null, // Writer
389 fm, // JavaFileManager
390 null, // DiagnosticListener
391 options, // Iterable<String>
392 null, // Iterable<String> classes
393 files); // Iterable<? extends JavaFileObject>
394
395 try {
396 return jctask.call();
397 } catch (IllegalStateException e) {
398 System.err.println(e);
399 return false;
400 }
401 } catch (IOException e) {
402 throw new Error(e);
403 }
404 }
405
406 protected void writeSourceFile(String fileName, String body) throws IOException{
407 try (Writer fw = new FileWriter(fileName)) {
408 fw.write(body);
409 }
410 }
411
412 protected void genSourceFiles() throws IOException{
413 /* Create a file that executes with all supported versions. */
414 writeSourceFile("Base.java","public class Base { }\n");
415
416 /*
417 * Create a file with a new feature in 1.7, not in 1.6 : "<>"
418 */
419 writeSourceFile("New17.java",
420 "import java.util.List;\n" +
421 "import java.util.ArrayList;\n" +
422 "class New17 { List<String> s = new ArrayList<>(); }\n"
423 );
424
425 /*
426 * Create a file with a new feature in 1.8, not in 1.7 : lambda
427 */
428 writeSourceFile("New18.java",
429 "public class New18 { \n" +
430 " void m() { \n" +
431 " new Thread(() -> { }); \n" +
432 " } \n" +
433 "} \n"
434 );
435
436 /*
437 * Create a file with a new feature in 1.10, not in 1.9 : var
438 */
439 writeSourceFile("New110.java",
440 "public class New110 { \n" +
441 " void m() { \n" +
442 " var tmp = new Thread(() -> { }); \n" +
443 " } \n" +
444 "} \n"
445 );
446
447 /*
448 * Create a file with a new feature in 11, not in 10 : var for lambda parameters
449 */
450 writeSourceFile("New111.java",
451 "public class New111 { \n" +
452 " static java.util.function.Function<String,String> f = (var x) -> x.substring(0);\n" +
453 " void m(String name) { \n" +
454 " var tmp = new Thread(() -> { }, f.apply(name)); \n" +
455 " } \n" +
456 "} \n"
457 );
458 }
459
460 protected boolean checkClassFileVersion
461 (String filename,String classVersionNumber) {
462 ByteBuffer bb = ByteBuffer.allocate(1024);
463 try (FileChannel fc = new FileInputStream(filename).getChannel()) {
464 bb.clear();
465 if (fc.read(bb) < 0)
466 throw new IOException("Could not read from file : " + filename);
467 bb.flip();
468 int minor = bb.getShort(4);
469 int major = bb.getShort(6);
470 String fileVersion = major + "." + minor;
471 if (fileVersion.equals(classVersionNumber)) {
472 return true;
473 } else {
474 System.err.println("checkClassFileVersion : Failed");
475 System.err.println("\tclassfile version mismatch");
476 System.err.println("\texpected : " + classVersionNumber);
477 System.err.println("\tfound : " + fileVersion);
478 return false;
479 }
480 }
481 catch (IOException e) {
482 System.err.println("checkClassFileVersion : Failed");
483 System.err.println("\terror :\t" + e.getMessage());
484 System.err.println("\tfile:\tfilename");
485 }
486 return false;
487 }
488 }
489