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test/tools/javap/T4880663.java@2eb010b6cb22 (annotated)

test/tools/javap/T4880663.java

Thu, 31 Aug 2017 15:17:03 +0800

author

aoqi

date

Thu, 31 Aug 2017 15:17:03 +0800

changeset 2525

2eb010b6cb22

parent 953

c55928005af4

parent 0

959103a6100f

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2008, 2011, 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 4880663 6715757 7031005
aoqi@0	27	* @summary javap could output whitespace between class name and opening brace
aoqi@0	28	* javap prints "extends java.lang.Object"
aoqi@0	29	*/
aoqi@0	30
aoqi@0	31
aoqi@0	32	import java.io.*;
aoqi@0	33
aoqi@0	34	public class T4880663 {
aoqi@0	35	public static void main(String[] args) throws Exception {
aoqi@0	36	new T4880663().run();
aoqi@0	37	}
aoqi@0	38
aoqi@0	39	public void run() throws IOException {
aoqi@0	40	File javaFile = writeTestFile();
aoqi@0	41	File classFile = compileTestFile(javaFile);
aoqi@0	42	verify(classFile, "class Test {");
aoqi@0	43
aoqi@0	44	if (errors > 0)
aoqi@0	45	throw new Error(errors + " found.");
aoqi@0	46	}
aoqi@0	47
aoqi@0	48	File writeTestFile() throws IOException {
aoqi@0	49	File f = new File("Test.java");
aoqi@0	50	PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
aoqi@0	51	out.println("class Test { }");
aoqi@0	52	out.close();
aoqi@0	53	return f;
aoqi@0	54	}
aoqi@0	55
aoqi@0	56	File compileTestFile(File f) {
aoqi@0	57	int rc = com.sun.tools.javac.Main.compile(new String[] { "-g", f.getPath() });
aoqi@0	58	if (rc != 0)
aoqi@0	59	throw new Error("compilation failed. rc=" + rc);
aoqi@0	60	String path = f.getPath();
aoqi@0	61	return new File(path.substring(0, path.length() - 5) + ".class");
aoqi@0	62	}
aoqi@0	63
aoqi@0	64	String javap(File classFile) {
aoqi@0	65	StringWriter sw = new StringWriter();
aoqi@0	66	PrintWriter out = new PrintWriter(sw);
aoqi@0	67	int rc = com.sun.tools.javap.Main.run(new String[] { classFile.getPath() }, out);
aoqi@0	68	if (rc != 0)
aoqi@0	69	throw new Error("javap failed. rc=" + rc);
aoqi@0	70	out.close();
aoqi@0	71	System.out.println(sw.toString());
aoqi@0	72	return sw.toString();
aoqi@0	73	}
aoqi@0	74
aoqi@0	75	void verify(File classFile, String... expects) {
aoqi@0	76	String output = javap(classFile);
aoqi@0	77	for (String expect: expects) {
aoqi@0	78	if (output.indexOf(expect)< 0)
aoqi@0	79	error(expect + " not found");
aoqi@0	80	}
aoqi@0	81	}
aoqi@0	82
aoqi@0	83	void error(String msg) {
aoqi@0	84	System.err.println(msg);
aoqi@0	85	errors++;
aoqi@0	86	}
aoqi@0	87
aoqi@0	88	int errors;
aoqi@0	89	}