/*
* Copyright (c) 2010, 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
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*/
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.StringWriter;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import javax.lang.model.element.Element;
import javax.tools.DiagnosticCollector;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.StandardJavaFileManager;
import javax.tools.ToolProvider;
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.util.JavacTask;
/**
* @test
* @bug 6956638
* @summary JavacTask.generate does not generate all required files
*/
public class T6956638 {
public static void main(String[] args) throws Exception {
new T6956638().run();
}
void run() throws Exception {
File srcDir = new File("src");
File[] files = {
writeFile(new File(srcDir, "T1.java"),
"public class T1 extends T2 {}\n"),
writeFile(new File(srcDir, "T2.java"),
"public class T2 extends T3 {}\n"),
writeFile(new File(srcDir, "T3.java"),
"public class T3 { public static final int C = 1; }\n"),
writeFile(new File(srcDir, "Test.java"),
"public class Test { public static final int D = T1.C; }\n")
};
for (File f1: files) {
for (File f2: files) {
if (f2 == f1) continue;
for (File f3: files) {
if (f3 == f2 || f3 == f1) continue;
for (File f4: files) {
if (f4 == f3 || f4 == f2 || f4 == f1) continue;
try {
test(f1, f2, f3, f4);
} catch (Exception e) {
error(e);
}
}
}
}
}
if (errors > 0)
throw new Exception(errors + " tests failed");
}
void test(File... sourceFiles) throws Exception {
System.err.println("Test " + (++count) + ": " + Arrays.asList(sourceFiles));
File classesDir = new File("classes" + count);
classesDir.mkdirs();
StringWriter compilerOutputStream = new StringWriter();
List<String> compileOptions = Arrays.asList("-d", classesDir.getPath());
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
DiagnosticCollector<JavaFileObject> diagnosticCollector = new DiagnosticCollector<JavaFileObject>();
StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnosticCollector, null, null);
Iterable<? extends JavaFileObject> sourceFileObjects = fileManager.getJavaFileObjects(sourceFiles);
System.err.println("1- javac given java source JavaFileObjects " + sourceFileObjects);
JavaCompiler.CompilationTask task = compiler.getTask(compilerOutputStream, fileManager, null, compileOptions, null, sourceFileObjects);
JavacTask javacTask = (JavacTask) task;
Iterable<? extends CompilationUnitTree> parsedTrees = javacTask.parse();
Iterable<? extends Element> analyzedTrees = javacTask.analyze();
Iterable<? extends JavaFileObject> generatedFiles = javacTask.generate();
System.err.println("2- parsed:" + size(parsedTrees) + " analysed:" + size(analyzedTrees) + " generated:" + size(generatedFiles));
System.err.print("3-");
for (JavaFileObject f : generatedFiles)
System.err.print(" " + f);
System.err.println("");
System.err.print("5-");
for (File f : classesDir.listFiles())
System.err.print(" " + f);
System.err.println("");
System.err.println("----");
System.err.println(compilerOutputStream.toString());
if (size(generatedFiles) != size(parsedTrees)) {
throw new Exception("wrong number of files generated: " + size(generatedFiles)
+ " expected: " + size(parsedTrees));
}
}
private void error(Throwable t) {
t.printStackTrace();
errors++;
}
int count;
int errors;
private static <E> int size(Iterable<E> x) {
int n = 0;
for (Iterator<E> iter = x.iterator(); iter.hasNext(); ++n)
iter.next();
return n;
}
private static File writeFile(File f, String str) throws IOException {
f.getParentFile().mkdirs();
BufferedWriter fout = new BufferedWriter(new FileWriter(f));
try {
fout.write(str);
fout.flush();
} finally {
fout.close();
}
return f;
}
}