114 lines
3.6 KiB
Java
114 lines
3.6 KiB
Java
/*
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* Copyright (c) 2008, 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 4459541
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* @summary "javap -l" shows line numbers as signed short; they should be unsigned.
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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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public class T4459541 {
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public static void main(String[] args) throws Exception {
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new T4459541().run();
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}
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public void run() throws IOException {
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File javaFile = writeTestFile();
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File classFile = compileTestFile(javaFile);
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String output = javap(classFile);
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verify(output);
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}
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File writeTestFile() throws IOException {
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File f = new File("Test.java");
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out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
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println("class Test {");
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println("void begin(int i) {");
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println("i++;");
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println("i++;");
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println("}");
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while (line < 32750)
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println("// " + line);
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println("void before_32767(int i) {");
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println("i++;");
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println("i++;");
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println("}");
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while (line < 32768-4)
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println("// " + line);
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println("void straddle_32768(int i) {");
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while (line < 32768+4)
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println("i++;");
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println("}");
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while (line < 65520)
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println("// " + line);
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println("void between_32768_and_65536(int i) {");
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println("i++;");
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println("i++;");
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println("}");
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while (line < 65536-4)
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println("// " + line);
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println("void straddle_65536(int i) {");
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while (line < 65536+4)
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println("i++;");
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println("}");
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println("}");
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out.close();
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return f;
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}
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File compileTestFile(File f) {
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int rc = com.sun.tools.javac.Main.compile(new String[] { f.getPath() });
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if (rc != 0)
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throw new Error("compilation failed. rc=" + rc);
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String path = f.getPath();
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return new File(path.substring(0, path.length() - 5) + ".class");
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}
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String javap(File f) {
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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(new String[] { "-l", f.getPath() }, out);
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if (rc != 0)
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throw new Error("javap failed. rc=" + rc);
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out.close();
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return sw.toString();
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}
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void verify(String output) {
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System.out.println(output);
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if (output.indexOf("-") >= 0)
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throw new Error("- found in output");
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}
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void println(String text) {
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out.println(text);
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line++;
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}
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PrintWriter out;
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int line = 1;
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}
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