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test/tools/javap/StackMapTableTest.java@153d0309e698 (annotated)

test/tools/javap/StackMapTableTest.java

Mon, 31 Aug 2015 13:37:01 -0700

author

asaha

date

Mon, 31 Aug 2015 13:37:01 -0700

changeset 2971

153d0309e698

parent 0

959103a6100f

permissions

-rw-r--r--

Added tag jdk8u65-b12 for changeset 54e958a3719e

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/*
aoqi@0	25	* @test
aoqi@0	26	* @bug 8033930 8033913
aoqi@0	27	* @summary bad formatting of StackMapTable entries
aoqi@0	28	*/
aoqi@0	29
aoqi@0	30	import java.io.*;
aoqi@0	31	import java.util.*;
aoqi@0	32
aoqi@0	33	public class StackMapTableTest {
aoqi@0	34	public static void main(String... args) throws Exception {
aoqi@0	35	new StackMapTableTest().run();
aoqi@0	36	}
aoqi@0	37
aoqi@0	38	void run() throws Exception {
aoqi@0	39	String testClasses = System.getProperty("test.classes");
aoqi@0	40	String out = javap("-v", "-classpath", testClasses, A.class.getName());
aoqi@0	41
aoqi@0	42	String nl = System.getProperty("line.separator");
aoqi@0	43	out = out.replaceAll(nl, "\n");
aoqi@0	44
aoqi@0	45	if (out.contains("\n\n\n"))
aoqi@0	46	error("double blank line found");
aoqi@0	47
aoqi@0	48	String expect =
aoqi@0	49	" StackMapTable: number_of_entries = 2\n" +
aoqi@0	50	" frame_type = 252 /* append */\n" +
aoqi@0	51	" offset_delta = 2\n" +
aoqi@0	52	" locals = [ int ]\n" +
aoqi@0	53	" frame_type = 250 /* chop */\n" +
aoqi@0	54	" offset_delta = 18\n";
aoqi@0	55	if (!out.contains(expect))
aoqi@0	56	error("expected text not found");
aoqi@0	57
aoqi@0	58	if (errors > 0)
aoqi@0	59	throw new Exception(errors + " errors found");
aoqi@0	60	}
aoqi@0	61
aoqi@0	62	String javap(String... args) throws Exception {
aoqi@0	63	StringWriter sw = new StringWriter();
aoqi@0	64	PrintWriter out = new PrintWriter(sw);
aoqi@0	65	int rc = com.sun.tools.javap.Main.run(args, out);
aoqi@0	66	out.close();
aoqi@0	67	System.out.println(sw.toString());
aoqi@0	68	if (rc < 0)
aoqi@0	69	throw new Exception("javap exited, rc=" + rc);
aoqi@0	70	return sw.toString();
aoqi@0	71	}
aoqi@0	72
aoqi@0	73	void error(String msg) {
aoqi@0	74	System.out.println("Error: " + msg);
aoqi@0	75	errors++;
aoqi@0	76	}
aoqi@0	77
aoqi@0	78	int errors;
aoqi@0	79
aoqi@0	80	/** Simple test class to run through javap. */
aoqi@0	81	public class A {
aoqi@0	82	public void a() {
aoqi@0	83	for (int i = 0; i < 10; i++) {
aoqi@0	84	System.out.println(i);
aoqi@0	85	}
aoqi@0	86	}
aoqi@0	87	public void b() {
aoqi@0	88	}
aoqi@0	89	public void c() {
aoqi@0	90	}
aoqi@0	91	}
aoqi@0	92	}