1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137
|
/*
* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8054717
* @summary Make sure changes of public API on classpath triggers recompilation
* @library /tools/lib
* @modules jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.main
* jdk.compiler/com.sun.tools.sjavac
* @build Wrapper toolbox.ToolBox toolbox.Assert
* @run main Wrapper ClasspathDependencies
*/
import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.attribute.FileTime;
import static toolbox.Assert.check;
public class ClasspathDependencies extends SjavacBase {
public static void main(String... args) throws Exception {
Path root = Paths.get(ClasspathDependencies.class.getSimpleName() + "Test");
delete(root);
Path src = root.resolve("src");
Path classes = root.resolve("classes");
Path srcDep = root.resolve("srcDep");
Path classesDep = root.resolve("classesDep");
////////////////////////////////////////////////////////////////////////
headline("Create a test dependency, Dep.class, and put it in the classpath dir");
String depCode = "package dep; public class Dep { public void m1() {} }";
toolbox.writeFile(srcDep.resolve("dep/Dep.java"), depCode);
int rc = compile("-d", classesDep, "--state-dir=" + classesDep, srcDep);
check(rc == 0, "Compilation failed unexpectedly");
////////////////////////////////////////////////////////////////////////
headline("Compile and link against the Dep.class");
toolbox.writeFile(src.resolve("pkg/C.java"),
"package pkg;" +
"import dep.Dep;" +
"public class C { Dep dep; public void m() { new Dep().m1(); } }");
rc = compile("-d", classes, "--state-dir=" + classes, src, "-cp", classesDep);
check(rc == 0, "Compilation failed unexpectedly");
FileTime modTime1 = Files.getLastModifiedTime(classes.resolve("pkg/C.class"));
////////////////////////////////////////////////////////////////////////
headline("Update dependency (without changing the public api)");
Thread.sleep(2000);
depCode = depCode.replaceAll("}$", "private void m2() {} }");
toolbox.writeFile(srcDep.resolve("dep/Dep.java"), depCode);
rc = compile("-d", classesDep, "--state-dir=" + classesDep, srcDep);
check(rc == 0, "Compilation failed unexpectedly");
////////////////////////////////////////////////////////////////////////
headline("Make sure that this does not trigger recompilation of C.java");
rc = compile("-d", classes, "--state-dir=" + classes, src, "-cp", classesDep);
check(rc == 0, "Compilation failed unexpectedly");
FileTime modTime2 = Files.getLastModifiedTime(classes.resolve("pkg/C.class"));
check(modTime1.equals(modTime2), "Recompilation erroneously triggered");
////////////////////////////////////////////////////////////////////////
headline("Update public API of dependency");
Thread.sleep(2000);
depCode = depCode.replace("m1()", "m1(String... arg)");
toolbox.writeFile(srcDep.resolve("dep/Dep.java"), depCode);
rc = compile("-d", classesDep, "--state-dir=" + classesDep, srcDep);
check(rc == 0, "Compilation failed unexpectedly");
////////////////////////////////////////////////////////////////////////
headline("Make sure that recompilation of C.java is triggered");
rc = compile("-d", classes, "--state-dir=" + classes, src, "-cp", classesDep);
check(rc == 0, "Compilation failed unexpectedly");
FileTime modTime3 = Files.getLastModifiedTime(classes.resolve("pkg/C.class"));
check(modTime2.compareTo(modTime3) < 0, "Recompilation not triggered");
}
static void headline(String str) {
System.out.println();
System.out.println(str);
System.out.println(str.replaceAll(".", "-"));
}
static void delete(Path root) throws IOException {
if (!Files.exists(root))
return;
Files.walkFileTree(root, new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult visitFile(Path f, BasicFileAttributes a)
throws IOException {
Files.delete(f);
return FileVisitResult.CONTINUE;
}
@Override
public FileVisitResult postVisitDirectory(Path dir, IOException e)
throws IOException {
if (e != null)
throw e;
if (!dir.equals(root))
Files.delete(dir);
return FileVisitResult.CONTINUE;
}
});
}
}
|