b6341534.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 66 行

/*
 * Copyright 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.
 */

import javax.annotation.processing.*;
import javax.lang.model.element.*;
import javax.lang.model.util.*;
import static javax.lang.model.util.ElementFilter.*;
import static javax.tools.Diagnostic.Kind.*;
import java.util.*;
import java.util.Set;

@SupportedAnnotationTypes({"*"})
@SupportedSourceVersion(javax.lang.model.SourceVersion.RELEASE_6)
public class b6341534 extends AbstractProcessor {
    static int r = 0;
    static Elements E = null;
    static Messager msgr = null;
    public void init(ProcessingEnvironment penv)  {
	processingEnv = penv;
	msgr = penv.getMessager();
	E = penv.getElementUtils();
    }
    //Create directory 'dir1' and a test class in dir1
    public boolean process(Set<? extends TypeElement> tes, RoundEnvironment renv)
    {
	if(!renv.errorRaised() &&  !renv.processingOver()){
	    r++;
	    for( TypeElement t : typesIn(renv.getRootElements()) )
		System.out.println("Round"+r+ ": " + t.toString());

	    try {
		PackageElement PE = E.getPackageElement("dir1");
		List<? extends Element> LEE = PE.getEnclosedElements();    /* <=This line elicits the error message.  */
		for(Element e : LEE)    System.out.println("found " + e.toString() + " in dir1.");
	    }
	    catch(NullPointerException npe) {
		msgr.printMessage(ERROR,npe.toString());
		//npe.printStackTrace();
		return false;
	    }
	}
	if( renv.errorRaised() ) {      msgr.printMessage(ERROR, "FAILED");}
	return true;
    }
}