Mercurial > jdk8-mips64-public > langtools / changeset

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/classfiles/ClassVersionChecker.java	Fri Apr 06 10:10:44 2012 -0700
     1.3 @@ -0,0 +1,149 @@
     1.4 +/*
     1.5 + * Copyright (c) 2012, 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 7157626
    1.30 + * @summary Test major version for all legal combinations for -source and -target
    1.31 + * @author sgoel
    1.32 + *
    1.33 + */
    1.34 +
    1.35 +import java.io.*;
    1.36 +import java.nio.*;
    1.37 +import java.util.*;
    1.38 +import java.util.regex.*;
    1.39 +
    1.40 +public class ClassVersionChecker {
    1.41 +
    1.42 +    int errors;
    1.43 +    String[] jdk = {"","1.2","1.3","1.4","1.5","1.6","1.7","1.8"};
    1.44 +    File javaFile = null;
    1.45 +
    1.46 +    public static void main(String[] args) throws Throwable {
    1.47 +        new ClassVersionChecker().run();
    1.48 +    }
    1.49 +
    1.50 +    void run() throws Exception {
    1.51 +        writeTestFile();
    1.52 +        /* Rules applicable for -source and -target combinations
    1.53 +         * 1. If both empty, version num is for 1.7
    1.54 +         * 2. If source is not empty and target is empty, version is based on source
    1.55 +         * 3. If both non-empty, version is based on target
    1.56 +         */
    1.57 +
    1.58 +        /* -source (0=>empty,1=>1.2,...) X -target (0=>empty,1=>1.2,...)
    1.59 +         * ver[0][0] => no -source or -target was given
    1.60 +         * -1 => invalid combinations
    1.61 +         */
    1.62 +        int[][] ver =
    1.63 +                {{51, -1, -1, -1, -1, -1, -1, -1},
    1.64 +                 {48, 46, 47, 48, 49, 50, 51, 51},
    1.65 +                 {48, 46, 47, 48, 49, 50, 51, 51},
    1.66 +                 {48, -1, -1, 48, 49, 50, 51, 51},
    1.67 +                 {51, -1, -1, -1, 49, 50, 51, 51},
    1.68 +                 {51, -1, -1, -1, -1, 50, 51, 51},
    1.69 +                 {51, -1, -1, -1, -1, -1, 51, 51},
    1.70 +                 {51, -1, -1, -1, -1, -1, -1, 51}};
    1.71 +
    1.72 +        // Loop to run all possible combinations of source/target values
    1.73 +        for (int i = 0; i< ver.length; i++) {
    1.74 +            for (int j = 0 ; j< ver[i].length; j++) {
    1.75 +                if(ver[i][j] != -1) {
    1.76 +                    logMsg("Index values for i = " + i + " j = " + j);
    1.77 +                    logMsg("Running for src = " + jdk[i] + " target = "+jdk[j] +" expected = " + ver[i][j]);
    1.78 +                    test(i,j, ver[i][j]);
    1.79 +                }
    1.80 +            }
    1.81 +        }
    1.82 +
    1.83 +        if (errors > 0)
    1.84 +            throw new Exception(errors + " errors found");
    1.85 +    }
    1.86 +
    1.87 +    void test (int i, int j, int expected) {
    1.88 +        File classFile = compileTestFile(i, j, javaFile);
    1.89 +        short majorVer = getMajorVersion(classFile);
    1.90 +        checkVersion(majorVer, expected);
    1.91 +    }
    1.92 +
    1.93 +    void writeTestFile() throws IOException {
    1.94 +        javaFile = new File("Test.java");
    1.95 +        try(PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(javaFile)));) {
    1.96 +            out.println("class Test { ");
    1.97 +            out.println("  public void foo() { }");
    1.98 +            out.println("}");
    1.99 +        } catch (IOException ioe) {
   1.100 +            error("IOException while creating Test.java" + ioe);
   1.101 +        }
   1.102 +    }
   1.103 +
   1.104 +    File compileTestFile(int i , int j, File f) {
   1.105 +        int rc = -1;
   1.106 +        // Src and target are empty
   1.107 +        if (i == 0 && j == 0 ) {
   1.108 +            rc = compile("-g", f.getPath());
   1.109 +        } else if( j == 0 ) {  // target is empty
   1.110 +            rc = compile("-source", jdk[i], "-g", f.getPath());
   1.111 +        } else {
   1.112 +            rc = compile("-source", jdk[i], "-target", jdk[j], "-g", f.getPath());
   1.113 +        }
   1.114 +        if (rc != 0)
   1.115 +            throw new Error("compilation failed. rc=" + rc);
   1.116 +        String path = f.getPath();
   1.117 +        return new File(path.substring(0, path.length() - 5) + ".class");
   1.118 +    }
   1.119 +
   1.120 +    int compile(String... args) {
   1.121 +        return com.sun.tools.javac.Main.compile(args);
   1.122 +    }
   1.123 +
   1.124 +    void logMsg (String str) {
   1.125 +        System.out.println(str);
   1.126 +    }
   1.127 +
   1.128 +    short getMajorVersion(File f) {
   1.129 +        List<String> args = new ArrayList<String>();
   1.130 +        short majorVer = 0;
   1.131 +        try(DataInputStream in = new DataInputStream(new BufferedInputStream(new FileInputStream(f)));) {
   1.132 +            in.readInt();
   1.133 +            in.readShort();
   1.134 +            majorVer = in.readShort();
   1.135 +            System.out.println("major version:" +  majorVer);
   1.136 +        } catch (IOException e) {
   1.137 +            error("IOException while reading Test.class" + e);
   1.138 +        }
   1.139 +        return majorVer;
   1.140 +    }
   1.141 +
   1.142 +    void checkVersion(short majorVer, int expected) {
   1.143 +        if (majorVer != expected ) {
   1.144 +            error("versions did not match, Expected: " + expected + "Got: " + majorVer);
   1.145 +        }
   1.146 +    }
   1.147 +
   1.148 +    void error(String msg) {
   1.149 +       System.out.println("error: " + msg);
   1.150 +       errors++;
   1.151 +    }
   1.152 +}