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T6458749.java 
64 строки · 2.5 Кб
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/*
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 * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test
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 * @bug 6458749
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 * @summary  TypeParameterElement.getEnclosedElements() throws NPE within javac
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 * @modules java.compiler
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 *          jdk.compiler
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 * @build T6458749
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 * @compile -processor T6458749 -proc:only T6458749.java
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 */
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import java.util.Set;
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import javax.annotation.processing.*;
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import javax.lang.model.element.*;
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import javax.lang.model.util.ElementFilter;
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import javax.lang.model.SourceVersion;
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@SupportedAnnotationTypes("*")
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public class T6458749<T> extends AbstractProcessor {
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    public boolean process(Set<? extends TypeElement> tes, RoundEnvironment renv) {
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        if (!renv.processingOver()) {
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            for(TypeElement e : ElementFilter.typesIn(renv.getRootElements())) {
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                System.out.printf("Element %s:%n", e.toString());
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                try {
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                    for (TypeParameterElement tp : e.getTypeParameters()) {
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                        System.out.printf("Type param %s", tp.toString());
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                        if (! tp.getEnclosedElements().isEmpty()) {
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                            throw new AssertionError("TypeParameterElement.getEnclosedElements() should return empty list");
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                        }
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                    }
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                } catch (NullPointerException npe) {
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                    throw new AssertionError("NPE from TypeParameterElement.getEnclosedElements()", npe);
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                }
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            }
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        }
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        return true;
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    }
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    public SourceVersion getSupportedSourceVersion() {
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        return SourceVersion.latest();
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    }
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}
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