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