| /* |
| * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6970173 |
| * @summary Debug pointer at bad position |
| * @library /tools/lib |
| * @modules jdk.jdeps/com.sun.tools.classfile |
| * jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.main |
| * jdk.compiler/com.sun.tools.javac.util |
| * jdk.jdeps/com.sun.tools.javap |
| * @build toolbox.ToolBox toolbox.JavacTask |
| * @run main DebugPointerAtBadPositionTest |
| */ |
| |
| import java.io.File; |
| import java.nio.file.Paths; |
| |
| import com.sun.tools.classfile.ClassFile; |
| import com.sun.tools.classfile.Code_attribute; |
| import com.sun.tools.classfile.LineNumberTable_attribute; |
| import com.sun.tools.classfile.Method; |
| import com.sun.tools.javac.util.Assert; |
| |
| import toolbox.JavacTask; |
| import toolbox.ToolBox; |
| |
| public class DebugPointerAtBadPositionTest { |
| |
| static final String testSource = |
| "public class AssertionTest {\n" + |
| " void lookForThisMethod() {\n" + |
| " int i;\n" + |
| " i = 33;\n" + |
| " assert // line 5\n" + |
| " i < 89:\n" + |
| " i < 100; // line 7\n" + |
| " }\n" + |
| "}"; |
| |
| static final int[][] expectedLNT = { |
| {4, 0}, |
| {5, 3}, |
| {8, 34} |
| }; |
| |
| static final String methodToLookFor = "lookForThisMethod"; |
| static final String seekMethodNotFoundMsg = |
| "The seek method was not found"; |
| static final String foundLNTLengthDifferentThanExpMsg = |
| "The LineNumberTable found has a length different to the expected one"; |
| |
| public static void main(String[] args) throws Exception { |
| new DebugPointerAtBadPositionTest().run(); |
| } |
| |
| void run() throws Exception { |
| compileTestClass(); |
| checkClassFile(new File(Paths.get(System.getProperty("user.dir"), |
| "AssertionTest.class").toUri()), methodToLookFor); |
| } |
| |
| void compileTestClass() throws Exception { |
| ToolBox tb = new ToolBox(); |
| new JavacTask(tb) |
| .sources(testSource) |
| .run(); |
| } |
| |
| void checkClassFile(final File cfile, String methodToFind) throws Exception { |
| ClassFile classFile = ClassFile.read(cfile); |
| boolean methodFound = false; |
| for (Method method : classFile.methods) { |
| if (method.getName(classFile.constant_pool).equals(methodToFind)) { |
| methodFound = true; |
| Code_attribute code = (Code_attribute) method.attributes.get("Code"); |
| LineNumberTable_attribute lnt = |
| (LineNumberTable_attribute) code.attributes.get("LineNumberTable"); |
| Assert.check(lnt.line_number_table_length == expectedLNT.length, |
| foundLNTLengthDifferentThanExpMsg); |
| int i = 0; |
| for (LineNumberTable_attribute.Entry entry: lnt.line_number_table) { |
| Assert.check(entry.line_number == expectedLNT[i][0] && |
| entry.start_pc == expectedLNT[i][1], |
| "LNT entry at pos " + i + " differ from expected." + |
| "Found " + entry.line_number + ":" + entry.start_pc + |
| ". Expected " + expectedLNT[i][0] + ":" + expectedLNT[i][1]); |
| i++; |
| } |
| } |
| } |
| Assert.check(methodFound, seekMethodNotFoundMsg); |
| } |
| |
| void error(String msg) { |
| throw new AssertionError(msg); |
| } |
| |
| } |