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test/tools/javap/T6271787.java@4a48f3173534 (annotated)

test/tools/javap/T6271787.java

Thu, 04 Apr 2013 19:05:42 -0700

author

katleman

date

Thu, 04 Apr 2013 19:05:42 -0700

changeset 1662

4a48f3173534

parent 554

9d9f26857129

child 2525

2eb010b6cb22

permissions

-rw-r--r--

Added tag jdk8-b84 for changeset cfb65ca92082

jjg@46	1	/*
ohair@554	2	* Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
jjg@46	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@46	4	*
jjg@46	5	* This code is free software; you can redistribute it and/or modify it
jjg@46	6	* under the terms of the GNU General Public License version 2 only, as
jjg@46	7	* published by the Free Software Foundation.
jjg@46	8	*
jjg@46	9	* This code is distributed in the hope that it will be useful, but WITHOUT
jjg@46	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@46	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
jjg@46	12	* version 2 for more details (a copy is included in the LICENSE file that
jjg@46	13	* accompanied this code).
jjg@46	14	*
jjg@46	15	* You should have received a copy of the GNU General Public License version
jjg@46	16	* 2 along with this work; if not, write to the Free Software Foundation,
jjg@46	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@46	18	*
ohair@554	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554	20	* or visit www.oracle.com if you need additional information or have any
ohair@554	21	* questions.
jjg@46	22	*/
jjg@46	23
jjg@46	24	/*
jjg@46	25	* @test
jjg@46	26	* @bug 6271787
jjg@46	27	* @summary javap dumps LocalVariableTypeTable attribute in hex, needs to print a table
jjg@46	28	*/
jjg@46	29
jjg@46	30	import java.io.*;
jjg@46	31
jjg@46	32	public class T6271787 {
jjg@46	33	public static void main(String[] args) throws Exception {
jjg@46	34	new T6271787().run();
jjg@46	35	}
jjg@46	36
jjg@46	37	public void run() throws IOException {
jjg@46	38	File javaFile = writeTestFile();
jjg@46	39	File classFile = compileTestFile(javaFile);
jjg@46	40
jjg@46	41	verify(classFile,
jjg@46	42	"LocalVariableTypeTable:",
jjg@46	43	"0 5 0 this LTest<TT;>;" // should consider decoding this in javap
jjg@46	44	);
jjg@46	45
jjg@46	46	if (errors > 0)
jjg@46	47	throw new Error(errors + " found.");
jjg@46	48	}
jjg@46	49
jjg@46	50	File writeTestFile() throws IOException {
jjg@46	51	File f = new File("Test.java");
jjg@46	52	PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
jjg@46	53	out.println("class Test<T> { }");
jjg@46	54	out.close();
jjg@46	55	return f;
jjg@46	56	}
jjg@46	57
jjg@46	58	File compileTestFile(File f) {
jjg@46	59	int rc = com.sun.tools.javac.Main.compile(new String[] { "-g", f.getPath() });
jjg@46	60	if (rc != 0)
jjg@46	61	throw new Error("compilation failed. rc=" + rc);
jjg@46	62	String path = f.getPath();
jjg@46	63	return new File(path.substring(0, path.length() - 5) + ".class");
jjg@46	64	}
jjg@46	65
jjg@46	66	String javap(File f) {
jjg@46	67	StringWriter sw = new StringWriter();
jjg@46	68	PrintWriter out = new PrintWriter(sw);
jjg@46	69	int rc = com.sun.tools.javap.Main.run(new String[] { "-v", f.getPath() }, out);
jjg@46	70	if (rc != 0)
jjg@46	71	throw new Error("javap failed. rc=" + rc);
jjg@46	72	out.close();
jjg@46	73	return sw.toString();
jjg@46	74	}
jjg@46	75
jjg@46	76	void verify(File classFile, String... expects) {
jjg@46	77	String output = javap(classFile);
jjg@46	78	for (String expect: expects) {
jjg@46	79	if (output.indexOf(expect)< 0)
jjg@46	80	error(expect + " not found");
jjg@46	81	}
jjg@46	82	}
jjg@46	83
jjg@46	84	void error(String msg) {
jjg@46	85	System.err.println(msg);
jjg@46	86	errors++;
jjg@46	87	}
jjg@46	88
jjg@46	89	int errors;
jjg@46	90	}