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*
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* version 2 for more details ( a copy is included in the LICENSE file that
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* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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import jdk.test.lib.process.ProcessTools;
import java.io.File;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.file.*;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.Optional;
/*
* @ test
* @ summary Make sure that jimages are consistent when created by jlink . Copies test jdk and runs against original .
* @ bug 8252730
* @ modules jdk . jlink
* jdk . management
* jdk . unsupported
* jdk . charsets
* @ library / test / lib
* @ run main JLinkReproducible3Test
*/
public class JLinkReproducible3Test {
public static void main(String[] args) throws Exception {
Path image1 = Paths.get("./image1" );
Path image2 = Paths.get("./image2" );
Path copyJdk1Dir = Path.of("./copy-jdk1-tmpdir" );
Files.createDirectory(copyJdk1Dir);
Path copyJdk2Dir = Path.of("./copy-jdk2-tmpdir" );
Files.createDirectory(copyJdk2Dir);
Path jdkTestDir = Path.of(
Optional.of(
System.getProperty("test.jdk" ))
.orElseThrow(() -> new RuntimeException("Couldn't load JDK Test Dir" ))
);
copyJDK(jdkTestDir, copyJdk1Dir);
copyJDK(jdkTestDir, copyJdk2Dir);
Path copiedJlink1 = Optional.of(
Paths.get(copyJdk1Dir.toString(), "bin" , "jlink" ))
.orElseThrow(() -> new RuntimeException("Unable to load copied jlink" )
);
Path copiedJlink2 = Optional.of(
Paths.get(copyJdk2Dir.toString(), "bin" , "jlink" ))
.orElseThrow(() -> new RuntimeException("Unable to load copied jlink" )
);
runCopiedJlink(copiedJlink1.toString(), "--add-modules" , "java.base,jdk.management,jdk.unsupported,jdk.charsets" , "--output" , image1.toString());
runCopiedJlink(copiedJlink2.toString(), "--add-modules" , "java.base,jdk.management,jdk.unsupported,jdk.charsets" , "--output" , image2.toString());
long mismatch = Files.mismatch(image1.resolve("lib" ).resolve("modules" ), image2.resolve("lib" ).resolve("modules" ));
if (mismatch != -1 L) {
throw new RuntimeException("jlink producing inconsistent result in modules. Mismatch in modules file occurred at byte position " + mismatch);
}
}
private static void runCopiedJlink(String... args) throws Exception {
var process = new ProcessBuilder(args);
var res = ProcessTools.executeProcess(process);
res.shouldHaveExitValue(0 );
}
private static void copyJDK(Path src, Path dst) throws Exception {
Files.walk(src).skip(1 ).forEach(file -> {
try {
Files.copy(file, dst.resolve(src.relativize(file)), StandardCopyOption.COPY_ATTRIBUTES);
} catch (IOException ioe) {
throw new UncheckedIOException(ioe);
}
});
}
}
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