/*

 * 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

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 */

import javax.annotation.processing.*;

import javax.lang.model.SourceVersion;

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;

    static int r = 0;

    //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 {

                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) {

                //npe.printStackTrace();

                return false;

            }

        }

        // on round 1, expect errorRaised == false && processingOver == false

        // on round 2, expect errorRaised == true && processingOver == true

        if( renv.errorRaised() != renv.processingOver()) {

        }

        return true;

    }

}