| /* |
| * 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.file |
| * jdk.compiler/com.sun.tools.javac.main |
| * jdk.compiler/com.sun.tools.sjavac |
| * jdk.jdeps/com.sun.tools.javap |
| * @build Wrapper ToolBox |
| * @run main Wrapper ClasspathDependencies |
| */ |
| |
| import static com.sun.tools.javac.util.Assert.check; |
| |
| 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; |
| |
| 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; |
| } |
| }); |
| } |
| |
| } |