138 lines
6.0 KiB
Java
138 lines
6.0 KiB
Java
/*
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* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8054717
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* @summary Make sure changes of public API on classpath triggers recompilation
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* @library /tools/lib
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* @modules jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.main
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* jdk.compiler/com.sun.tools.sjavac
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* @build Wrapper toolbox.ToolBox toolbox.Assert
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* @run main Wrapper ClasspathDependencies
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*/
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import java.io.IOException;
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import java.nio.file.FileVisitResult;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.nio.file.SimpleFileVisitor;
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import java.nio.file.attribute.BasicFileAttributes;
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import java.nio.file.attribute.FileTime;
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import static toolbox.Assert.check;
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public class ClasspathDependencies extends SjavacBase {
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public static void main(String... args) throws Exception {
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Path root = Paths.get(ClasspathDependencies.class.getSimpleName() + "Test");
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delete(root);
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Path src = root.resolve("src");
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Path classes = root.resolve("classes");
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Path srcDep = root.resolve("srcDep");
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Path classesDep = root.resolve("classesDep");
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////////////////////////////////////////////////////////////////////////
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headline("Create a test dependency, Dep.class, and put it in the classpath dir");
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String depCode = "package dep; public class Dep { public void m1() {} }";
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toolbox.writeFile(srcDep.resolve("dep/Dep.java"), depCode);
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int rc = compile("-d", classesDep, "--state-dir=" + classesDep, srcDep);
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check(rc == 0, "Compilation failed unexpectedly");
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////////////////////////////////////////////////////////////////////////
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headline("Compile and link against the Dep.class");
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toolbox.writeFile(src.resolve("pkg/C.java"),
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"package pkg;" +
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"import dep.Dep;" +
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"public class C { Dep dep; public void m() { new Dep().m1(); } }");
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rc = compile("-d", classes, "--state-dir=" + classes, src, "-cp", classesDep);
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check(rc == 0, "Compilation failed unexpectedly");
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FileTime modTime1 = Files.getLastModifiedTime(classes.resolve("pkg/C.class"));
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////////////////////////////////////////////////////////////////////////
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headline("Update dependency (without changing the public api)");
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Thread.sleep(2000);
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depCode = depCode.replaceAll("}$", "private void m2() {} }");
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toolbox.writeFile(srcDep.resolve("dep/Dep.java"), depCode);
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rc = compile("-d", classesDep, "--state-dir=" + classesDep, srcDep);
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check(rc == 0, "Compilation failed unexpectedly");
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////////////////////////////////////////////////////////////////////////
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headline("Make sure that this does not trigger recompilation of C.java");
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rc = compile("-d", classes, "--state-dir=" + classes, src, "-cp", classesDep);
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check(rc == 0, "Compilation failed unexpectedly");
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FileTime modTime2 = Files.getLastModifiedTime(classes.resolve("pkg/C.class"));
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check(modTime1.equals(modTime2), "Recompilation erroneously triggered");
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////////////////////////////////////////////////////////////////////////
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headline("Update public API of dependency");
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Thread.sleep(2000);
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depCode = depCode.replace("m1()", "m1(String... arg)");
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toolbox.writeFile(srcDep.resolve("dep/Dep.java"), depCode);
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rc = compile("-d", classesDep, "--state-dir=" + classesDep, srcDep);
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check(rc == 0, "Compilation failed unexpectedly");
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////////////////////////////////////////////////////////////////////////
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headline("Make sure that recompilation of C.java is triggered");
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rc = compile("-d", classes, "--state-dir=" + classes, src, "-cp", classesDep);
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check(rc == 0, "Compilation failed unexpectedly");
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FileTime modTime3 = Files.getLastModifiedTime(classes.resolve("pkg/C.class"));
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check(modTime2.compareTo(modTime3) < 0, "Recompilation not triggered");
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}
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static void headline(String str) {
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System.out.println();
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System.out.println(str);
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System.out.println(str.replaceAll(".", "-"));
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}
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static void delete(Path root) throws IOException {
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if (!Files.exists(root))
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return;
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Files.walkFileTree(root, new SimpleFileVisitor<Path>() {
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@Override
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public FileVisitResult visitFile(Path f, BasicFileAttributes a)
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throws IOException {
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Files.delete(f);
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return FileVisitResult.CONTINUE;
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}
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@Override
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public FileVisitResult postVisitDirectory(Path dir, IOException e)
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throws IOException {
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if (e != null)
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throw e;
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if (!dir.equals(root))
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Files.delete(dir);
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return FileVisitResult.CONTINUE;
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}
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});
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}
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}
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