Java example source code file (T6348193.java)

This example Java source code file (T6348193.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

assertionerror, bufferedwriter, file, ioexception, javafileobject, mydiaglistener, net, network, nogoodbad, noloadersecuritymanager, noyes, string, util

The T6348193.java Java example source code

/*
 * Copyright (c) 2006, 2008, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * 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.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug 6348193
 * @summary AS8.1 UR2 BAT test failure with "javac"
 * @compile -proc:none T6348193.java
 * @run main/othervm T6348193
 */

import java.io.*;
import java.net.*;
import java.util.*;
import javax.annotation.processing.*;
import javax.lang.model.element.*;
import javax.tools.*;
import com.sun.tools.javac.api.JavacTool;

@SupportedAnnotationTypes({"*"})
public class T6348193 extends AbstractProcessor
{
    private static final boolean verbose = true;

    enum NoYes { NO, YES };
    enum NoGoodBad { NO, GOOD, BAD};

    public static final String myName = T6348193.class.getName();

    public static void main(String... args) throws IOException {
        if (System.getSecurityManager() != null)
            throw new AssertionError("unexpected security manager");

        for (NoYes secMgr: EnumSet.allOf(NoYes.class))
            for (NoGoodBad config: EnumSet.allOf(NoGoodBad.class))
                for (NoYes proc: EnumSet.allOf(NoYes.class))
                    test(secMgr, config, proc);
    }

    private static File processed = new File("processed");

    public static void test(NoYes secMgr, NoGoodBad config, NoYes proc) throws IOException {
        if (verbose)
            System.err.println("secMgr:" + secMgr + " config:" + config + " proc:" + proc);

        if (secMgr == NoYes.YES && System.getSecurityManager() == null)
            System.setSecurityManager(new NoLoaderSecurityManager());

        installConfigFile(config);

        processed.delete();

        List<String> args = new ArrayList();
        //args.add("-XprintRounds");
        if (proc == NoYes.YES) {
            args.add("-processor");
            args.add(myName);
        }
        args.add("-processorpath");
        args.add(System.getProperty("java.class.path"));
        args.add("-d");
        args.add(".");

        JavacTool t = JavacTool.create(); // avoid using class loader

        MyDiagListener dl = new MyDiagListener();
        PrintWriter out = new PrintWriter(System.err, true);
        StandardJavaFileManager fm = t.getStandardFileManager(dl, null, null);
        File file = new File(System.getProperty("test.src"), myName+".java");
        Iterable<? extends JavaFileObject> files =
            fm.getJavaFileObjectsFromFiles(Arrays.asList(file));
        boolean ok = t.getTask(out, null, dl, args, null, files).call();

        if (config == NoGoodBad.GOOD || proc == NoYes.YES) {
            if (secMgr == NoYes.YES) {
                if (dl.last == null)
                    throw new AssertionError("Security manager installed, and processors present, "
                                             + " but no diagnostic received");
            }
            else {
                if (!processed.exists())
                    throw new AssertionError("No security manager installed, and processors present, "
                                             + " but no processing occurred");
            }
        }
        else if (config == NoGoodBad.BAD) {
            // TODO: should verify that no compiler crash occurred
            // needs revised JSR199 spec
        }
        else {
            if (processed.exists())
                throw new AssertionError("No processors present, but processing occurred!");
        }

        if (verbose)
            System.err.println("OK");
    }

    // set up or remove a service configuration file
    static void installConfigFile(NoGoodBad type) throws IOException {
        File f = new File(System.getProperty("test.classes", "."));
        for (String s: new String[] { "META-INF", "services", Processor.class.getName() })
            f = new File(f, s);
        BufferedWriter out;
        switch (type) {
        case GOOD:
            f.getParentFile().mkdirs();
            out = new BufferedWriter(new FileWriter(f));
            out.write(myName);
            out.newLine();
            out.close();
            break;
        case BAD:
            f.getParentFile().mkdirs();
            out = new BufferedWriter(new FileWriter(f));
            out.write("This is not a valid line");
            out.newLine();
            out.close();
            break;
        case NO:
            f.delete();
        }


    }

    // annotation processor method
    public boolean process(Set<? extends TypeElement> tes, RoundEnvironment renv )
    {
        try {
            // touch a file to indicate we have run
            new FileWriter(processed).close();
        } catch (IOException e) {
        }
        return true;
    }

    static class MyDiagListener implements DiagnosticListener<JavaFileObject>
    {
        public void report(Diagnostic<? extends JavaFileObject> message) {
            if (verbose)
                System.err.println(message);
            last = message;
        }

        Diagnostic<? extends JavaFileObject> last;
    }

    static class NoLoaderSecurityManager extends SecurityManager
    {
        public void checkCreateClassLoader() {
            throw new SecurityException("Not today, thanks you!");
        }

        public void checkPropertyAccess(String key) { /*OK*/ }

        public void checkDelete(String file) { /*OK*/ }
        public void checkRead(FileDescriptor fd) { /*OK*/ }
        public void checkRead(String file) { /*OK*/ }
        public void checkRead(String file, Object context) { /*OK*/ }
        public void checkWrite(String file) { /*OK*/ }

    }
}