HelloWorldTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
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 * 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.
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 */

/*
 * @test
 * @bug 6604599
 * @summary ToolProvider should be less compiler-specific
 * @library /tools/lib
 * @modules jdk.compiler/com.sun.tools.javac.api
 *          jdk.compiler/com.sun.tools.javac.main
 * @build toolbox.ToolBox toolbox.JavaTask
 * @run main HelloWorldTest
 */

import java.util.Arrays;

import toolbox.JavaTask;
import toolbox.Task;
import toolbox.ToolBox;

// verify that running a simple program, such as this one, does not trigger
// the loading of ToolProvider or any com.sun.tools.javac class
public class HelloWorldTest {
    public static void main(String... args) throws Exception {
        if (args.length > 0) {
            System.err.println(Arrays.toString(args));
            return;
        }

        new HelloWorldTest().run();
    }

    void run() throws Exception {
        ToolBox tb = new ToolBox();

        String classpath = System.getProperty("java.class.path");

        Task.Result tr = new JavaTask(tb)
                .vmOptions("-verbose:class")
                .classpath(classpath)
                .className(HelloWorldTest.class.getName())
                .classArgs("Hello", "World")
                .run();

        if (tr.getOutput(Task.OutputKind.STDOUT).contains("java.lang.Object")) {
            for (String line : tr.getOutputLines(Task.OutputKind.STDOUT)) {
                System.err.println(line);
                if (line.contains("javax.tools.ToolProvider") || line.contains("com.sun.tools.javac."))
                    error(">>> " + line);
            }
        } else {
            tr.writeAll();
            error("verbose output not as expected");
        }

        if (errors > 0)
            throw new Exception(errors + " errors occurred");
    }

    void error(String msg) {
        System.err.println(msg);
        errors++;
    }

    int errors;
}