| /* |
| * 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 6716452 |
| * @summary need a method to get an index of an attribute |
| */ |
| |
| import java.io.*; |
| import com.sun.tools.classfile.*; |
| |
| public class T6716452 { |
| public static void main(String[] args) throws Exception { |
| new T6716452().run(); |
| } |
| |
| public void run() throws Exception { |
| File javaFile = writeTestFile(); |
| File classFile = compileTestFile(javaFile); |
| |
| ClassFile cf = ClassFile.read(classFile); |
| for (Method m: cf.methods) { |
| test(cf, m); |
| } |
| |
| if (errors > 0) |
| throw new Exception(errors + " errors found"); |
| } |
| |
| void test(ClassFile cf, Method m) { |
| test(cf, m, Attribute.Code, Code_attribute.class); |
| test(cf, m, Attribute.Exceptions, Exceptions_attribute.class); |
| } |
| |
| // test the result of Attributes.getIndex according to expectations |
| // encoded in the method's name |
| void test(ClassFile cf, Method m, String name, Class<?> c) { |
| int index = m.attributes.getIndex(cf.constant_pool, name); |
| try { |
| String m_name = m.getName(cf.constant_pool); |
| System.err.println("Method " + m_name + " name:" + name + " index:" + index + " class: " + c); |
| boolean expect = (m_name.equals("<init>") && name.equals("Code")) |
| || (m_name.indexOf(name) != -1); |
| boolean found = (index != -1); |
| if (expect) { |
| if (found) { |
| Attribute attr = m.attributes.get(index); |
| if (!c.isAssignableFrom(attr.getClass())) { |
| error(m + ": unexpected attribute found," |
| + " expected " + c.getName() |
| + " found " + attr.getClass().getName()); |
| } |
| } else { |
| error(m + ": expected attribute " + name + " not found"); |
| } |
| } else { |
| if (found) { |
| error(m + ": unexpected attribute " + name); |
| } |
| } |
| } catch (ConstantPoolException e) { |
| error(m + ": " + e); |
| } |
| } |
| |
| File writeTestFile() throws IOException { |
| File f = new File("Test.java"); |
| PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f))); |
| out.println("abstract class Test { "); |
| out.println(" abstract void m();"); |
| out.println(" void m_Code() { }"); |
| out.println(" abstract void m_Exceptions() throws Exception;"); |
| out.println(" void m_Code_Exceptions() throws Exception { }"); |
| out.println("}"); |
| 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"); |
| } |
| |
| void error(String msg) { |
| System.err.println("error: " + msg); |
| errors++; |
| } |
| |
| int errors; |
| } |