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test/tools/javap/T4459541.java@4a48f3173534 (annotated)

test/tools/javap/T4459541.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 4459541
jjg@46	27	* @summary "javap -l" shows line numbers as signed short; they should be unsigned.
jjg@46	28	*/
jjg@46	29
jjg@46	30	import java.io.*;
jjg@46	31
jjg@46	32	public class T4459541 {
jjg@46	33	public static void main(String[] args) throws Exception {
jjg@46	34	new T4459541().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	String output = javap(classFile);
jjg@46	41	verify(output);
jjg@46	42	}
jjg@46	43
jjg@46	44	File writeTestFile() throws IOException {
jjg@46	45	File f = new File("Test.java");
jjg@46	46	out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
jjg@46	47	println("class Test {");
jjg@46	48	println("void begin(int i) {");
jjg@46	49	println("i++;");
jjg@46	50	println("i++;");
jjg@46	51	println("}");
jjg@46	52	while (line < 32750)
jjg@46	53	println("// " + line);
jjg@46	54	println("void before_32767(int i) {");
jjg@46	55	println("i++;");
jjg@46	56	println("i++;");
jjg@46	57	println("}");
jjg@46	58	while (line < 32768-4)
jjg@46	59	println("// " + line);
jjg@46	60	println("void straddle_32768(int i) {");
jjg@46	61	while (line < 32768+4)
jjg@46	62	println("i++;");
jjg@46	63	println("}");
jjg@46	64	while (line < 65520)
jjg@46	65	println("// " + line);
jjg@46	66	println("void between_32768_and_65536(int i) {");
jjg@46	67	println("i++;");
jjg@46	68	println("i++;");
jjg@46	69	println("}");
jjg@46	70	while (line < 65536-4)
jjg@46	71	println("// " + line);
jjg@46	72	println("void straddle_65536(int i) {");
jjg@46	73	while (line < 65536+4)
jjg@46	74	println("i++;");
jjg@46	75	println("}");
jjg@46	76	println("}");
jjg@46	77	out.close();
jjg@46	78	return f;
jjg@46	79	}
jjg@46	80
jjg@46	81	File compileTestFile(File f) {
jjg@46	82	int rc = com.sun.tools.javac.Main.compile(new String[] { f.getPath() });
jjg@46	83	if (rc != 0)
jjg@46	84	throw new Error("compilation failed. rc=" + rc);
jjg@46	85	String path = f.getPath();
jjg@46	86	return new File(path.substring(0, path.length() - 5) + ".class");
jjg@46	87	}
jjg@46	88
jjg@46	89	String javap(File f) {
jjg@46	90	StringWriter sw = new StringWriter();
jjg@46	91	PrintWriter out = new PrintWriter(sw);
jjg@46	92	int rc = com.sun.tools.javap.Main.run(new String[] { "-l", f.getPath() }, out);
jjg@46	93	if (rc != 0)
jjg@46	94	throw new Error("javap failed. rc=" + rc);
jjg@46	95	out.close();
jjg@46	96	return sw.toString();
jjg@46	97	}
jjg@46	98
jjg@46	99	void verify(String output) {
jjg@46	100	System.out.println(output);
jjg@46	101	if (output.indexOf("-") >= 0)
jjg@46	102	throw new Error("- found in output");
jjg@46	103	}
jjg@46	104
jjg@46	105	void println(String text) {
jjg@46	106	out.println(text);
jjg@46	107	line++;
jjg@46	108	}
jjg@46	109
jjg@46	110	PrintWriter out;
jjg@46	111	int line = 1;
jjg@46	112	}