8148787: StringConcatFactory exactness check produces bad bytecode when a non-arg concat is requested
Reviewed-by: vlivanov, psandoz
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/*
* @test 6403456
* @summary javax.tools.JavaCompilerTool.getStandardFileManager().list() includes directories
* @modules java.compiler
* jdk.compiler
*/
import javax.tools.*;
import java.util.*;
import java.io.*;
import static javax.tools.JavaFileObject.Kind;
public class T6340549 {
public static void main(String... args) throws Exception {
// Ensure a directory exists
File dir = new File("temp" + args.hashCode());
if (!dir.exists())
dir.mkdir();
if (!dir.isDirectory())
throw new AssertionError("Not a directory " + dir);
try {
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
try (StandardJavaFileManager jfm = compiler.getStandardFileManager(null, null, null)) {
jfm.setLocation(StandardLocation.CLASS_PATH, Arrays.asList(new File(".")));
for (JavaFileObject jfo : jfm.list(StandardLocation.CLASS_PATH,
"", EnumSet.of(Kind.OTHER), false)) {
if (new File(jfo.getName()).isDirectory()) {
throw new AssertionError("Found directory: " + jfo);
}
}
}
} finally {
dir.delete(); // cleanup
}
}
}