94 lines
3.0 KiB
Java
94 lines
3.0 KiB
Java
/*
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* Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8033930 8033913
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* @summary bad formatting of StackMapTable entries
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* @modules jdk.jdeps/com.sun.tools.javap
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*/
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import java.io.*;
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import java.util.*;
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public class StackMapTableTest {
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public static void main(String... args) throws Exception {
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new StackMapTableTest().run();
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}
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void run() throws Exception {
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String testClasses = System.getProperty("test.classes");
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String out = javap("-v", "-classpath", testClasses, A.class.getName());
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String nl = System.getProperty("line.separator");
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out = out.replaceAll(nl, "\n");
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if (out.contains("\n\n\n"))
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error("double blank line found");
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String expect =
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" StackMapTable: number_of_entries = 2\n" +
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" frame_type = 252 /* append */\n" +
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" offset_delta = 2\n" +
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" locals = [ int ]\n" +
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" frame_type = 250 /* chop */\n" +
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" offset_delta = 18\n";
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if (!out.contains(expect))
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error("expected text not found");
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if (errors > 0)
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throw new Exception(errors + " errors found");
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}
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String javap(String... args) throws Exception {
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StringWriter sw = new StringWriter();
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PrintWriter out = new PrintWriter(sw);
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int rc = com.sun.tools.javap.Main.run(args, out);
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out.close();
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System.out.println(sw.toString());
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if (rc < 0)
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throw new Exception("javap exited, rc=" + rc);
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return sw.toString();
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}
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void error(String msg) {
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System.out.println("Error: " + msg);
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errors++;
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}
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int errors;
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/** Simple test class to run through javap. */
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public class A {
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public void a() {
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for (int i = 0; i < 10; i++) {
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System.out.println(i);
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}
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}
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public void b() {
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}
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public void c() {
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}
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}
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}
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