t6265400.java

来自「是一款用JAVA 编写的编译器 具有很强的编译功能」· Java 代码 · 共 65 行

/*
 * Copyright 2005-2006 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

/*
 * @test
 * @bug 6265400
 * @summary  Javac should be shielded from client code errors in JSR 199
 * @run main T6265400
 */

import java.util.Arrays;

import java.io.*;
import javax.tools.*;

public class T6265400 {
    public static final String SILLY_BILLY = "oh what a silly billy I am";

    public static void main (String... args) {
	try {
	    JavaCompiler javac = javax.tools.ToolProvider.getSystemJavaCompiler();
	    DiagnosticListener<JavaFileObject> dl =  new DiagnosticListener<JavaFileObject>() {
		    public void report (Diagnostic<? extends JavaFileObject> message) {
			throw new NullPointerException(SILLY_BILLY);
		    }
		};
	    StandardJavaFileManager fm = javac.getStandardFileManager(dl, null, null);
	    Iterable<? extends JavaFileObject> files =
		fm.getJavaFileObjectsFromStrings(Arrays.asList("badfile.java"));
	    javac.getTask(null, fm, dl, null, null, files).call();
	}
	catch (RuntimeException e) {
	    Throwable cause = e.getCause();
	    if (cause instanceof NullPointerException 
		&& cause.getMessage().equals(SILLY_BILLY))
		return; 
	    throw new Error("unexpected exception caught: " + e);
	}
	catch (Throwable t) {
	    throw new Error("unexpected exception caught: " + t);
	}
	throw new Error("no exception caught");
    }
}