langtools/test/tools/javac/api/ToolProvider/HelloWorldTest.java
author jjg
Thu, 26 Aug 2010 15:17:17 -0700
changeset 6577 96c6451389fc
child 22149 c7e024d637bf
permissions -rw-r--r--
6604599: ToolProvider should be less compiler-specific Reviewed-by: darcy
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/*
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 * Copyright (c) 2010, 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 6604599
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 * @summary ToolProvider should be less compiler-specific
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 */
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import java.io.*;
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import java.util.*;
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// verify that running a simple program, such as this one, does not trigger
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// the loading of ToolProvider or any com.sun.tools.javac class
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public class HelloWorldTest {
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    public static void main(String... args) throws Exception {
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        if (args.length > 0) {
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            System.err.println(Arrays.asList(args));
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            return;
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        }
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        new HelloWorldTest().run();
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    }
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    void run() throws Exception {
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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 javaExe = new File(new File(javaHome, "bin"), "java");
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        String classpath = System.getProperty("java.class.path");
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        String[] cmd = {
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            javaExe.getPath(),
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            "-verbose:class",
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            "-classpath", classpath,
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            HelloWorldTest.class.getName(),
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            "Hello", "World"
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        };
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        ProcessBuilder pb = new ProcessBuilder(cmd).redirectErrorStream(true);
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        Process p = pb.start();
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        BufferedReader r = new BufferedReader(new InputStreamReader(p.getInputStream()));
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        String line;
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        while ((line = r.readLine()) != null) {
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            System.err.println(line);
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            if (line.contains("javax.tools.ToolProvider") || line.contains("com.sun.tools.javac."))
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                error(">>> " + line);
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        }
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        int rc = p.waitFor();
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        if (rc != 0)
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            error("Unexpected exit code: " + rc);
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        if (errors > 0)
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            throw new Exception(errors + " errors occurred");
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    }
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    void error(String msg) {
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        System.err.println(msg);
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        errors++;
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    }
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    int errors;
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}