/*
* Copyright (c) 2008, 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 6271787
* @summary javap dumps LocalVariableTypeTable attribute in hex, needs to print a table
*/
import java.io.*;
public class T6271787 {
public static void main(String[] args) throws Exception {
new T6271787().run();
}
public void run() throws IOException {
File javaFile = writeTestFile();
File classFile = compileTestFile(javaFile);
verify(classFile,
"LocalVariableTypeTable:",
"0 5 0 this LTest<TT;>;" // should consider decoding this in javap
);
if (errors > 0)
throw new Error(errors + " found.");
}
File writeTestFile() throws IOException {
File f = new File("Test.java");
PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
out.println("class Test<T> { }");
out.close();
return f;
}
File compileTestFile(File f) {
int rc = com.sun.tools.javac.Main.compile(new String[] { "-g", f.getPath() });
if (rc != 0)
throw new Error("compilation failed. rc=" + rc);
String path = f.getPath();
return new File(path.substring(0, path.length() - 5) + ".class");
}
String javap(File f) {
StringWriter sw = new StringWriter();
PrintWriter out = new PrintWriter(sw);
int rc = com.sun.tools.javap.Main.run(new String[] { "-v", f.getPath() }, out);
if (rc != 0)
throw new Error("javap failed. rc=" + rc);
out.close();
return sw.toString();
}
void verify(File classFile, String... expects) {
String output = javap(classFile);
for (String expect: expects) {
if (output.indexOf(expect)< 0)
error(expect + " not found");
}
}
void error(String msg) {
System.err.println(msg);
errors++;
}
int errors;
}