1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/T7008643/InlinedFinallyConfuseDebuggersTest.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,117 @@
1.4 +/*
1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test
1.29 + * @bug 7008643
1.30 + * @summary inlined finally clauses confuse debuggers
1.31 + * @library /tools/javac/lib
1.32 + * @build ToolBox
1.33 + * @run main InlinedFinallyConfuseDebuggersTest
1.34 + */
1.35 +
1.36 +import java.io.File;
1.37 +import java.nio.file.Paths;
1.38 +
1.39 +import com.sun.tools.classfile.ClassFile;
1.40 +import com.sun.tools.classfile.Code_attribute;
1.41 +import com.sun.tools.classfile.LineNumberTable_attribute;
1.42 +import com.sun.tools.classfile.Method;
1.43 +import com.sun.tools.javac.util.Assert;
1.44 +
1.45 +public class InlinedFinallyConfuseDebuggersTest {
1.46 +
1.47 + static final String testSource =
1.48 + /* 01 */ "public class InlinedFinallyTest {\n" +
1.49 + /* 02 */ " void lookForThisMethod(int value) {\n" +
1.50 + /* 03 */ " try {\n" +
1.51 + /* 04 */ " if (value > 0) {\n" +
1.52 + /* 05 */ " System.out.println(\"if\");\n" +
1.53 + /* 06 */ " return;\n" +
1.54 + /* 07 */ " }\n" +
1.55 + /* 08 */ " } finally {\n" +
1.56 + /* 09 */ " System.out.println(\"finally\");\n" +
1.57 + /* 10 */ " }\n" +
1.58 + /* 11 */ " }\n" +
1.59 + /* 12 */ "}";
1.60 +
1.61 + static final int[][] expectedLNT = {
1.62 + // {line-number, start-pc},
1.63 + {4, 0}, //if (value > 0) {
1.64 + {5, 4}, // System.out.println("if");
1.65 + {9, 12}, //System.out.println("finally");
1.66 + {6, 20}, // return;
1.67 + {9, 21}, //System.out.println("finally");
1.68 + {10, 29},
1.69 + {9, 32}, //System.out.println("finally");
1.70 + {11, 43},
1.71 + };
1.72 +
1.73 + static final String methodToLookFor = "lookForThisMethod";
1.74 +
1.75 + public static void main(String[] args) throws Exception {
1.76 + new InlinedFinallyConfuseDebuggersTest().run();
1.77 + }
1.78 +
1.79 + void run() throws Exception {
1.80 + compileTestClass();
1.81 + checkClassFile(new File(Paths.get(System.getProperty("user.dir"),
1.82 + "InlinedFinallyTest.class").toUri()), methodToLookFor);
1.83 + }
1.84 +
1.85 + void compileTestClass() throws Exception {
1.86 + ToolBox.JavaToolArgs javacSuccessArgs =
1.87 + new ToolBox.JavaToolArgs().setSources(testSource);
1.88 + ToolBox.javac(javacSuccessArgs);
1.89 + }
1.90 +
1.91 + void checkClassFile(final File cfile, String methodToFind) throws Exception {
1.92 + ClassFile classFile = ClassFile.read(cfile);
1.93 + boolean methodFound = false;
1.94 + for (Method method : classFile.methods) {
1.95 + if (method.getName(classFile.constant_pool).equals(methodToFind)) {
1.96 + methodFound = true;
1.97 + Code_attribute code = (Code_attribute) method.attributes.get("Code");
1.98 + LineNumberTable_attribute lnt =
1.99 + (LineNumberTable_attribute) code.attributes.get("LineNumberTable");
1.100 + Assert.check(lnt.line_number_table_length == expectedLNT.length,
1.101 + "The LineNumberTable found has a length different to the expected one");
1.102 + int i = 0;
1.103 + for (LineNumberTable_attribute.Entry entry: lnt.line_number_table) {
1.104 + Assert.check(entry.line_number == expectedLNT[i][0] &&
1.105 + entry.start_pc == expectedLNT[i][1],
1.106 + "LNT entry at pos " + i + " differ from expected." +
1.107 + "Found " + entry.line_number + ":" + entry.start_pc +
1.108 + ". Expected " + expectedLNT[i][0] + ":" + expectedLNT[i][1]);
1.109 + i++;
1.110 + }
1.111 + }
1.112 + }
1.113 + Assert.check(methodFound, "The seek method was not found");
1.114 + }
1.115 +
1.116 + void error(String msg) {
1.117 + throw new AssertionError(msg);
1.118 + }
1.119 +
1.120 +}
