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/*
* Copyright (c) 2012, 2018, 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 7199823
* @summary javac generates inner class that can't be verified
* @modules jdk.jdeps/com.sun.tools.classfile
* @run main InnerClassCannotBeVerified
*/
import java.nio.file.NoSuchFileException;
import java.util.Arrays;
import javax.tools.JavaFileObject;
import java.net.URI;
import javax.tools.SimpleJavaFileObject;
import javax.tools.ToolProvider;
import javax.tools.JavaCompiler;
import com.sun.source.util.JavacTask;
import com.sun.tools.classfile.ClassFile;
import com.sun.tools.classfile.ConstantPoolException;
import java.io.File;
import java.io.IOException;
public class InnerClassCannotBeVerified {
enum CompilationKind {
PRE_NESTMATES("-source", "10", "-target", "10"),
POST_NESTMATES();
String[] opts;
CompilationKind(String... opts) {
this.opts = opts;
}
}
private static final String errorMessage =
"Compile error while compiling the following source:\n";
public static void main(String... args) throws Exception {
new InnerClassCannotBeVerified().run();
}
void run() throws Exception {
for (CompilationKind ck : CompilationKind.values()) {
File file = new File("Test$1.class");
if (file.exists()) {
file.delete();
}
JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
JavaSource source = new JavaSource();
JavacTask ct = (JavacTask)comp.getTask(null, null, null,
Arrays.asList(ck.opts), null, Arrays.asList(source));
try {
if (!ct.call()) {
throw new AssertionError(errorMessage +
source.getCharContent(true));
}
} catch (Throwable ex) {
throw new AssertionError(errorMessage +
source.getCharContent(true));
}
check(ck);
}
}
private void check(CompilationKind ck) throws IOException, ConstantPoolException {
try {
File file = new File("Test$1.class");
ClassFile classFile = ClassFile.read(file);
if (ck == CompilationKind.POST_NESTMATES) {
throw new AssertionError("Unexpected constructor tag class!");
}
boolean inheritsFromObject =
classFile.getSuperclassName().equals("java/lang/Object");
boolean implementsNoInterface = classFile.interfaces.length == 0;
boolean noMethods = classFile.methods.length == 0;
if (!(inheritsFromObject &&
implementsNoInterface &&
noMethods)) {
throw new AssertionError("The inner classes reused as " +
"access constructor tag for this code must be empty");
}
} catch (NoSuchFileException ex) {
if (ck == CompilationKind.PRE_NESTMATES) {
throw new AssertionError("Constructor tag class missing!");
}
}
}
class JavaSource extends SimpleJavaFileObject {
String internalSource =
"public class Test {\n" +
" private static class Foo {}\n" +
" public static void main(String[] args){ \n" +
" new Foo();\n" +
" if(false) {\n" +
" new Runnable() {\n" +
" @Override\n" +
" public void run() {\n" +
" System.out.println();\n" +
" }\n" +
" }.run();\n" +
" }\n" +
" }\n" +
"}";
public JavaSource() {
super(URI.create("Test.java"), JavaFileObject.Kind.SOURCE);
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return internalSource;
}
}
}
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