jdk-24/test/langtools/tools/javac/platform/VerifyCTSymClassFiles.java
2024-05-02 14:32:03 +00:00

87 lines
2.9 KiB
Java

/*
* Copyright (c) 2024, 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
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*/
/**
* @test
* @bug 8331027
* @summary Verify classfile inside ct.sym
* @enablePreview
* @library /tools/lib
* @modules jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.main
* jdk.compiler/com.sun.tools.javac.platform
* jdk.compiler/com.sun.tools.javac.util:+open
* @build toolbox.ToolBox VerifyCTSymClassFiles
* @run main VerifyCTSymClassFiles
*/
import java.io.IOException;
import java.io.UncheckedIOException;
import java.lang.classfile.ClassFile;
import java.lang.classfile.attribute.ModuleMainClassAttribute;
import java.net.URISyntaxException;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
public class VerifyCTSymClassFiles {
public static void main(String... args) throws IOException, URISyntaxException {
VerifyCTSymClassFiles t = new VerifyCTSymClassFiles();
t.checkClassFiles();
}
void checkClassFiles() throws IOException {
Path ctSym = Paths.get(System.getProperty("java.home"), "lib", "ct.sym");
if (!Files.exists(ctSym)) {
//no ct.sym, nothing to check:
return ;
}
try (FileSystem fs = FileSystems.newFileSystem(ctSym)) {
Files.walk(fs.getRootDirectories().iterator().next())
.filter(p -> Files.isRegularFile(p))
.forEach(p -> checkClassFile(p));
}
}
void checkClassFile(Path p) {
if (!"module-info.sig".equals(p.getFileName().toString())) {
return ;
}
try {
ClassFile.of().parse(p).attributes().forEach(attr -> {
if (attr instanceof ModuleMainClassAttribute mmca) {
mmca.mainClass();
}
});
} catch (IOException ex) {
throw new UncheckedIOException(ex);
}
}
}