/*
* Copyright (c) 2011, 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 7031108
* @summary NPE in javac.jvm.ClassReader.findMethod in PackageElement.enclosedElements from AP in incr build
* @library ../lib
* @build JavacTestingAbstractProcessor T7031108
* @run main T7031108
*/
import java.io.*;
import java.net.*;
import java.util.*;
import javax.annotation.processing.*;
import javax.lang.model.element.*;
import javax.tools.*;
import javax.tools.JavaCompiler.CompilationTask;
public class T7031108 extends JavacTestingAbstractProcessor {
public static void main(String... args) throws Exception {
new T7031108().run();
}
/* Class containing a local class definition;
* compiled class file will have an EnclosedMethod attribute.
*/
static final JavaSource pC =
new JavaSource("p/C.java",
"package p;\n"
+ "class C {\n"
+ " void m() {\n"
+ " new Runnable() {\n"
+ " public void run() {\n"
+ " new Runnable() {\n"
+ " public void run() { }\n"
+ " };\n"
+ " }\n"
+ " };\n"
+ " }\n"
+ "}");
/* Dummy source file to compile while running anno processor. */
static final JavaSource dummy =
new JavaSource("Dummy.java",
"class Dummy { }");
void run() throws Exception {
JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);
// step 1: compile test classes
File cwd = new File(".");
fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(cwd));
compile(comp, fm, null, null, pC);
// step 2: verify functioning of processor
fm.setLocation(StandardLocation.ANNOTATION_PROCESSOR_PATH,
fm.getLocation(StandardLocation.CLASS_PATH));
fm.setLocation(StandardLocation.CLASS_PATH, Arrays.asList(cwd));
compile(comp, fm, null, getClass().getName(), dummy);
File pC_class = new File(new File("p"), "C.class");
pC_class.delete();
DiagnosticCollector<JavaFileObject> dc = new DiagnosticCollector<JavaFileObject>();
compile(comp, fm, dc, getClass().getName(), dummy);
List<Diagnostic<? extends JavaFileObject>> diags =dc.getDiagnostics();
System.err.println(diags);
switch (diags.size()) {
case 0:
throw new Exception("no diagnostics received");
case 1:
String code = diags.get(0).getCode();
String expect = "compiler.err.proc.cant.access.1";
if (!expect.equals(code))
throw new Exception("unexpected diag code: " + code
+ ", expected: " + expect);
break;
default:
throw new Exception("unexpected diags received");
}
}
void compile(JavaCompiler comp, JavaFileManager fm,
DiagnosticListener<JavaFileObject> dl,
String processor, JavaFileObject... files) throws Exception {
System.err.println("compile processor:" + processor + ", files:" + Arrays.asList(files));
List<String> opts = new ArrayList<String>();
if (processor != null) {
// opts.add("-verbose");
opts.addAll(Arrays.asList("-processor", processor));
}
CompilationTask task = comp.getTask(null, fm, dl, opts, null, Arrays.asList(files));
boolean ok = task.call();
if (dl == null && !ok)
throw new Exception("compilation failed");
}
static class JavaSource extends SimpleJavaFileObject {
JavaSource(String name, String text) {
super(URI.create("js://" + name), JavaFileObject.Kind.SOURCE);
this.text = text;
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return text;
}
final String text;
}
// annotation processor method
@Override
public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
if (!roundEnv.processingOver()) {
PackageElement p = elements.getPackageElement("p");
List<? extends Element> elems = p.getEnclosedElements();
System.err.println("contents of package p: " + elems);
if (elems.size() != 1 || !elems.get(0).getSimpleName().contentEquals("C")) {
messager.printMessage(Diagnostic.Kind.ERROR, "unexpected package contents");
}
}
return true;
}
}