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/*
* Copyright (c) 2023, 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 8287885 8296656 7016187
* @summary Verify proper function of the "output-file-clash" lint flag
* @requires os.family == "mac"
* @library /tools/lib
* @modules jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.main
* jdk.compiler/com.sun.tools.javac.util
* @build toolbox.ToolBox toolbox.JavacTask
* @run main OutputFileClashTest
*/
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;
import java.util.regex.Pattern;
import toolbox.TestRunner;
import toolbox.ToolBox;
import toolbox.JavacTask;
import toolbox.Task;
public class OutputFileClashTest extends TestRunner {
protected ToolBox tb;
public OutputFileClashTest() {
super(System.err);
tb = new ToolBox();
}
protected void runTests() throws Exception {
runTests(m -> new Object[] { Paths.get(m.getName()) });
}
Path[] findJavaFiles(Path... paths) throws IOException {
return tb.findJavaFiles(paths);
}
// Note: in these tests, it's indeterminate which output file gets written first.
// So we compare the log output to a regex that matches the error either way.
@Test
public void testBug8287885(Path base) throws Exception {
testClash(base,
"""
public class Test {
void method1() {
enum ABC { A, B, C; }; // becomes "Test$1ABC.class"
}
void method2() {
enum Abc { A, B, C; }; // becomes "Test$1Abc.class"
}
}
""",
"- compiler.warn.output.file.clash: .*Test\\$1(ABC|Abc)\\.class");
}
@Test
public void testBug8296656(Path base) throws Exception {
testClash(base,
"""
public class Test {
@interface Annotation {
interface foo { }
@interface Foo { }
}
}
""",
"- compiler.warn.output.file.clash: .*Test\\$Annotation\\$(foo|Foo)\\.class");
}
@Test
public void testCombiningAcuteAccent(Path base) throws Exception {
testClash(base,
"""
public class Test {
interface Cafe\u0301 { // macos normalizes "e" + U0301 -> U00e9
}
interface Caf\u00e9 {
}
}
""",
"- compiler.warn.output.file.clash: .*Test\\$Caf.*\\.class");
}
private void testClash(Path base, String javaSource, String regex) throws Exception {
// Compile source
Path src = base.resolve("src");
tb.writeJavaFiles(src, javaSource);
Path classes = base.resolve("classes");
tb.createDirectories(classes);
Path headers = base.resolve("headers");
tb.createDirectories(headers);
List<String> log = new JavacTask(tb, Task.Mode.CMDLINE)
.options("-XDrawDiagnostics", "-Werror", "-Xlint:output-file-clash")
.outdir(classes)
.headerdir(headers)
.files(findJavaFiles(src))
.run(Task.Expect.FAIL)
.writeAll()
.getOutputLines(Task.OutputKind.DIRECT);
// Find expected error line
Pattern pattern = Pattern.compile(regex);
if (!log.stream().anyMatch(line -> pattern.matcher(line).matches()))
throw new Exception("expected error not found: \"" + regex + "\"");
}
public static void main(String... args) throws Exception {
new OutputFileClashTest().runTests();
}
}
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