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test/tools/javac/T8028504/DontGenerateLVTForGNoneOpTest.java@d63e99f71e83 (annotated)

test/tools/javac/T8028504/DontGenerateLVTForGNoneOpTest.java

Mon, 28 Jul 2014 07:23:55 -0700

author

tbell

date

Mon, 28 Jul 2014 07:23:55 -0700

changeset 2482

d63e99f71e83

parent 0

959103a6100f

permissions

-rw-r--r--

Added tag jdk8u20-b25 for changeset 9239118487df

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2013, 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 8028504
aoqi@0	27	* @summary javac generates LocalVariableTable even with -g:none
aoqi@0	28	* @compile -g:none DontGenerateLVTForGNoneOpTest.java
aoqi@0	29	* @run main DontGenerateLVTForGNoneOpTest
aoqi@0	30	*/
aoqi@0	31
aoqi@0	32	import java.io.File;
aoqi@0	33	import java.lang.annotation.ElementType;
aoqi@0	34	import java.lang.annotation.Target;
aoqi@0	35	import java.nio.file.Paths;
aoqi@0	36
aoqi@0	37	import com.sun.tools.classfile.Attribute;
aoqi@0	38	import com.sun.tools.classfile.ClassFile;
aoqi@0	39	import com.sun.tools.classfile.Code_attribute;
aoqi@0	40	import com.sun.tools.classfile.Method;
aoqi@0	41
aoqi@0	42	public class DontGenerateLVTForGNoneOpTest {
aoqi@0	43
aoqi@0	44	public static void main(String[] args) throws Exception {
aoqi@0	45	new DontGenerateLVTForGNoneOpTest().run();
aoqi@0	46	}
aoqi@0	47
aoqi@0	48	void run() throws Exception {
aoqi@0	49	checkClassFile(new File(Paths.get(System.getProperty("test.classes"),
aoqi@0	50	this.getClass().getName() + ".class").toUri()));
aoqi@0	51	}
aoqi@0	52
aoqi@0	53	void checkClassFile(final File cfile) throws Exception {
aoqi@0	54	ClassFile classFile = ClassFile.read(cfile);
aoqi@0	55	for (Method method : classFile.methods) {
aoqi@0	56	Code_attribute code = (Code_attribute)method.attributes.get(Attribute.Code);
aoqi@0	57	if (code != null) {
aoqi@0	58	if (code.attributes.get(Attribute.LocalVariableTable) != null) {
aoqi@0	59	throw new AssertionError("LVT shouldn't be generated for g:none");
aoqi@0	60	}
aoqi@0	61	}
aoqi@0	62	}
aoqi@0	63	}
aoqi@0	64
aoqi@0	65	public void bar() {
aoqi@0	66	try {
aoqi@0	67	System.out.println();
aoqi@0	68	} catch(@TA Exception e) {
aoqi@0	69	} catch(Throwable t) {}
aoqi@0	70	}
aoqi@0	71
aoqi@0	72	@Target(ElementType.TYPE_USE)
aoqi@0	73	@interface TA {}
aoqi@0	74	}