langtools/test/tools/javac/VersionOpt.java
author jjg
Thu, 18 Sep 2008 13:47:43 -0700
changeset 1261 f66c569f60ce
child 5520 86e4b9a9da40
permissions -rw-r--r--
6728697: tools/javac/versionOpt.sh fails on OpenJDK builds Reviewed-by: darcy
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/*
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 * Copyright 2005-2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 */
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/*
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 * @test
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 * @bug 6728697
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 * @summary tools/javac/versionOpt.sh fails on OpenJDK builds
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 * Test checks the version strings displayed by javac, using
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 * strings that come out of the Java runtime.
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 */
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import java.io.File;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.net.URL;
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public class VersionOpt {
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    public static void main(String... args) throws Exception {
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        new VersionOpt().run();
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    }
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    void run() throws Exception {
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        // Test functions by comparing the version string from javac against
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        // a "golden" version generated automatically from the underlying JVM.
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        // As such, it is only effective in testing the "standard" compiler,
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        // and not any development version being tested via -Xbootclasspath.
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        // Check the version of the compiler being used, and let the test pass
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        // automatically if is is a development version.
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        Class<?> javacClass = com.sun.tools.javac.Main.class;
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        URL javacURL = getClass().getClassLoader().getResource(javacClass.getName().replace(".", "/") + ".class");
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        if (!javacURL.getProtocol().equals("jar") || !javacURL.getFile().contains("!")) {
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            System.err.println("javac not found in tools.jar: " + javacURL);
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            System.err.println("rest of test skipped");
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            return;
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        }
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        String javacHome = javacURL.getFile().substring(0, javacURL.getFile().indexOf("!"));
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        File javaHome = new File(System.getProperty("java.home"));
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        if (javaHome.getName().equals("jre"))
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            javaHome = javaHome.getParentFile();
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        File toolsJar = new File(new File(javaHome, "lib"), "tools.jar");
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        if (!javacHome.equals(toolsJar.toURI().toString())){
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            System.err.println("javac not found in tools.jar: " + javacHome);
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            System.err.println("rest of test skipped");
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            return;
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        }
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        System.out.println("javac found in " + toolsJar);
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        String javaVersion = System.getProperty("java.version");
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        String javaRuntimeVersion = System.getProperty("java.runtime.version");
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        System.out.println("java.version: " + javaVersion);
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        System.out.println("java.runtime.version: " + javaRuntimeVersion);
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        StringWriter sw = new StringWriter();
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        com.sun.tools.javac.Main.compile(new String[] { "-version" }, new PrintWriter(sw));
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        String javacVersion = sw.toString().trim();
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        sw = new StringWriter();
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        com.sun.tools.javac.Main.compile(new String[] { "-fullversion" }, new PrintWriter(sw));
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        String javacFullVersion = sw.toString().trim();
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        System.out.println("javac -version: " + javacVersion);
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        System.out.println("javac -fullversion: " + javacFullVersion);
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        checkEqual("javac -version", javacVersion, "javac " + javaVersion);
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        checkEqual("javac -fullversion", javacFullVersion, "javac full version \"" + javaRuntimeVersion + "\"");
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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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    void checkEqual(String kind, String found, String expect) {
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        if (!found.equals(expect)) {
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            System.err.println("error: unexpected value for " + kind);
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            System.err.println("expect: >>" + expect + "<<");
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            System.err.println(" found: >>" + found + "<<");
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            errors++;
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        }
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    }
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    int errors;
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}