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 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");
73
74 public static final String LATEST_MAJOR_VERSION = "57.0";
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
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 checksrc17(String... args) {
236 printargs("checksrc17", args);
237 int asize = args.length;
238 String[] newargs = new String[asize+1];
239 System.arraycopy(args, 0, newargs,0 , asize);
240 newargs[asize] = "New17.java";
241 pass(newargs);
242 newargs[asize] = "New18.java";
243 fail(newargs);
244 }
245
246 protected void checksrc18(String... args) {
247 printargs("checksrc18", 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 pass(newargs);
255 newargs[asize] = "New110.java";
256 fail(newargs);
257 }
258
259 protected void checksrc19(String... args) {
260 printargs("checksrc19", args);
261 checksrc18(args);
262 }
263
264 protected void checksrc110(String... args) {
265 printargs("checksrc110", args);
266 int asize = args.length;
267 String[] newargs = new String[asize+1];
268 System.arraycopy(args, 0, newargs,0 , asize);
269 newargs[asize] = "New17.java";
270 pass(newargs);
271 newargs[asize] = "New18.java";
272 pass(newargs);
273 newargs[asize] = "New110.java";
274 pass(newargs);
275 }
276
277 protected void checksrc111(String... args) {
278 printargs("checksrc111", args);
279 int asize = args.length;
280 String[] newargs = new String[asize+1];
281 System.arraycopy(args, 0, newargs,0 , asize);
282 newargs[asize] = "New17.java";
283 pass(newargs);
284 newargs[asize] = "New18.java";
285 pass(newargs);
286 newargs[asize] = "New110.java";
287 pass(newargs);
288 newargs[asize] = "New111.java";
289 pass(newargs);
290 }
291
292 protected void checksrc112(String... args) {
293 printargs("checksrc112", args);
294 checksrc111(args);
295 }
296
297 protected void checksrc113(String... args) {
298 printargs("checksrc113", args);
299 checksrc111(args);
300 }
301
302 protected void pass(String... args) {
303 printargs("pass", args);
304
305 List<String> jcargs = new ArrayList<String>();
306 jcargs.add("-Xlint:-options");
307
308 // add in args conforming to List requrements of JavaCompiler
309 for (String onearg : args) {
310 String[] fields = onearg.split(" ");
311 for (String onefield : fields) {
312 jcargs.add(onefield);
313 }
314 }
315
316 // empty list is error
317 if (jcargs.isEmpty()) {
318 System.err.println("error: test error in pass() - No arguments");
319 System.err.println("\t arguments:\t" + jcargs);
320 failedCases++;
321 return;
322 }
323
324 // the last argument is the filename *.java
325 String filename = jcargs.get(jcargs.size() - 1);
326 jcargs.remove(jcargs.size() - 1);
327
328 boolean creturn = compile(filename, jcargs);
329 // expect a compilation failure, failure if otherwise
330 if (!creturn) {
331 System.err.println("pass: Compilation erroneously failed");
332 System.err.println("\t arguments:\t" + jcargs);
333 System.err.println("\t file :\t" + filename);
334 failedCases++;
335
336 }
337
338 }
339
340 protected void fail(String... args) {
341 printargs("fail", args);
342
343 List<String> jcargs = new ArrayList<String>();
344 jcargs.add("-Xlint:-options");
345
346 // add in args conforming to List requrements of JavaCompiler
347 for (String onearg : args) {
348 String[] fields = onearg.split(" ");
349 for (String onefield : fields) {
350 jcargs.add(onefield);
351 }
352 }
353
354 // empty list is error
355 if (jcargs.isEmpty()) {
356 System.err.println("error: test error in fail()- No arguments");
357 System.err.println("\t arguments:\t" + jcargs);
358 failedCases++;
359 return;
360 }
361
362 // the last argument is the filename *.java
363 String filename = jcargs.get(jcargs.size() - 1);
364 jcargs.remove(jcargs.size() - 1);
365
366 boolean creturn = compile(filename, jcargs);
367 // expect a compilation failure, failure if otherwise
368 if (creturn) {
369 System.err.println("fail: Compilation erroneously succeeded");
370 System.err.println("\t arguments:\t" + jcargs);
371 System.err.println("\t file :\t" + filename);
372 failedCases++;
373 }
374 }
375
376 protected boolean compile(String sourceFile, List<String>options) {
377 JavaCompiler.CompilationTask jctask;
378 try (StandardJavaFileManager fm = javacompiler.getStandardFileManager(null, null, null)) {
379 Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(sourceFile);
380
381 jctask = javacompiler.getTask(
382 null, // Writer
383 fm, // JavaFileManager
384 null, // DiagnosticListener
385 options, // Iterable<String>
386 null, // Iterable<String> classes
387 files); // Iterable<? extends JavaFileObject>
388
389 try {
390 return jctask.call();
391 } catch (IllegalStateException e) {
392 System.err.println(e);
393 return false;
394 }
395 } catch (IOException e) {
396 throw new Error(e);
397 }
398 }
399
400 protected void writeSourceFile(String fileName, String body) throws IOException{
401 try (Writer fw = new FileWriter(fileName)) {
402 fw.write(body);
403 }
404 }
405
406 protected void genSourceFiles() throws IOException{
407 /* Create a file that executes with all supported versions. */
408 writeSourceFile("Base.java","public class Base { }\n");
409
410 /*
411 * Create a file with a new feature in 1.7, not in 1.6 : "<>"
412 */
413 writeSourceFile("New17.java",
414 "import java.util.List;\n" +
415 "import java.util.ArrayList;\n" +
416 "class New17 { List<String> s = new ArrayList<>(); }\n"
417 );
418
419 /*
420 * Create a file with a new feature in 1.8, not in 1.7 : lambda
421 */
422 writeSourceFile("New18.java",
423 "public class New18 { \n" +
424 " void m() { \n" +
425 " new Thread(() -> { }); \n" +
426 " } \n" +
427 "} \n"
428 );
429
430 /*
431 * Create a file with a new feature in 1.10, not in 1.9 : var
432 */
433 writeSourceFile("New110.java",
434 "public class New110 { \n" +
435 " void m() { \n" +
436 " var tmp = new Thread(() -> { }); \n" +
437 " } \n" +
438 "} \n"
439 );
440
441 /*
442 * Create a file with a new feature in 11, not in 10 : var for lambda parameters
443 */
444 writeSourceFile("New111.java",
445 "public class New111 { \n" +
446 " static java.util.function.Function<String,String> f = (var x) -> x.substring(0);\n" +
447 " void m(String name) { \n" +
448 " var tmp = new Thread(() -> { }, f.apply(name)); \n" +
449 " } \n" +
450 "} \n"
451 );
452 }
453
454 protected boolean checkClassFileVersion
455 (String filename,String classVersionNumber) {
456 ByteBuffer bb = ByteBuffer.allocate(1024);
457 try (FileChannel fc = new FileInputStream(filename).getChannel()) {
458 bb.clear();
459 if (fc.read(bb) < 0)
460 throw new IOException("Could not read from file : " + filename);
461 bb.flip();
462 int minor = bb.getShort(4);
463 int major = bb.getShort(6);
464 String fileVersion = major + "." + minor;
465 if (fileVersion.equals(classVersionNumber)) {
466 return true;
467 } else {
468 System.err.println("checkClassFileVersion : Failed");
469 System.err.println("\tclassfile version mismatch");
470 System.err.println("\texpected : " + classVersionNumber);
471 System.err.println("\tfound : " + fileVersion);
472 return false;
473 }
474 }
475 catch (IOException e) {
476 System.err.println("checkClassFileVersion : Failed");
477 System.err.println("\terror :\t" + e.getMessage());
478 System.err.println("\tfile:\tfilename");
479 }
480 return false;
481 }
482 }
483