author | jjg |
Mon, 31 Aug 2009 19:43:06 -0700 | |
changeset 3777 | 9d8c7669df64 |
parent 2215 | dd8663d971d1 |
child 4551 | a986317586f6 |
permissions | -rw-r--r-- |
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/* |
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* Copyright 2006-2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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/* |
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* @test |
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* @bug 6397298 6400986 6425592 6449798 6453386 6508401 6498938 |
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* @summary Tests that getElementsAnnotatedWith works properly. |
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* @author Joseph D. Darcy |
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* @compile TestElementsAnnotatedWith.java |
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* @compile InheritedAnnotation.java |
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* @compile -processor TestElementsAnnotatedWith -proc:only SurfaceAnnotations.java |
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* @compile -processor TestElementsAnnotatedWith -proc:only BuriedAnnotations.java |
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* @compile -processor TestElementsAnnotatedWith -proc:only Part1.java Part2.java |
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* @compile -processor TestElementsAnnotatedWith -proc:only C2.java |
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* @compile -processor TestElementsAnnotatedWith -proc:only Foo.java |
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* @compile -XD-d=. Foo.java |
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* @compile -processor TestElementsAnnotatedWith -proc:only TestElementsAnnotatedWith.java |
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*/ |
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import java.lang.annotation.Annotation; |
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import java.io.*; |
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import java.util.Collections; |
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import java.util.Set; |
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import java.util.HashSet; |
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import java.util.List; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import javax.annotation.processing.*; |
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import javax.tools.*; |
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import javax.lang.model.SourceVersion; |
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import javax.lang.model.element.*; |
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import javax.lang.model.util.*; |
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import static javax.lang.model.util.ElementFilter.*; |
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/** |
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* This processor verifies that the information returned by |
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* getElementsAnnotatedWith is consistent with the expected results |
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* stored in an AnnotatedElementInfo annotation. |
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*/ |
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@SupportedAnnotationTypes("*") |
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@AnnotatedElementInfo(annotationName="java.lang.SuppressWarnings", expectedSize=0, names={}) |
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public class TestElementsAnnotatedWith extends AbstractProcessor { |
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public boolean process(Set<? extends TypeElement> annotations, |
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RoundEnvironment roundEnvironment) { |
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Elements elementUtils = processingEnv.getElementUtils(); |
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TypeElement annotatedElementInfoElement = |
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elementUtils.getTypeElement("AnnotatedElementInfo"); |
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Set<? extends Element> resultsMeta = Collections.emptySet(); |
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Set<? extends Element> resultsBase = Collections.emptySet(); |
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if (!roundEnvironment.processingOver()) { |
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testNonAnnotations(roundEnvironment); |
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// Verify AnnotatedElementInfo is present on the first |
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// specified type. |
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TypeElement firstType = typesIn(roundEnvironment.getRootElements()).iterator().next(); |
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AnnotatedElementInfo annotatedElementInfo = firstType.getAnnotation(AnnotatedElementInfo.class); |
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boolean failed = false; |
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if (annotatedElementInfo == null) |
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throw new IllegalArgumentException("Missing AnnotatedElementInfo annotation on " + |
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firstType); |
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else { |
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// Verify that the annotation information is as |
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// expected. |
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Set<String> expectedNames = new HashSet<String>(Arrays.asList(annotatedElementInfo.names())); |
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resultsMeta = |
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roundEnvironment. |
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getElementsAnnotatedWith(elementUtils. |
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getTypeElement(annotatedElementInfo. |
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annotationName())) ; |
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System.err.println("Results: " + resultsMeta); |
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if (resultsMeta.size() != annotatedElementInfo.expectedSize()) { |
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failed = true; |
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System.err.printf("Bad number of elements; expected %d, got %d%n", |
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annotatedElementInfo.expectedSize(), resultsMeta.size()); |
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} else { |
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for(Element element : resultsMeta) { |
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String simpleName = element.getSimpleName().toString(); |
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if (!expectedNames.contains(simpleName) ) { |
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failed = true; |
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System.err.println("Name ``" + simpleName + "'' not expected."); |
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} |
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} |
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} |
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} |
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resultsBase = computeResultsBase(roundEnvironment, annotatedElementInfo.annotationName()); |
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if (!resultsMeta.equals(resultsBase)) { |
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failed = true; |
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System.err.println("Base and Meta sets unequal;\n meta: " + resultsMeta + |
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"\nbase: " + resultsBase); |
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} |
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if (failed) { |
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System.err.println("AnnotatedElementInfo: " + annotatedElementInfo); |
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throw new RuntimeException(); |
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} |
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if("TestElementsAnnotatedWith".equals(firstType.getSimpleName().toString())) |
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writeClassFile(); // Start another round to test class file input |
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} else { |
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// If processing is over without an error, the specified |
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// elements should be empty so an empty set should be returned. |
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resultsMeta = roundEnvironment.getElementsAnnotatedWith(annotatedElementInfoElement); |
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resultsBase = roundEnvironment.getElementsAnnotatedWith(AnnotatedElementInfo.class); |
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if (!resultsMeta.isEmpty()) |
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throw new RuntimeException("Nonempty resultsMeta: " + resultsMeta); |
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if (!resultsBase.isEmpty()) |
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throw new RuntimeException("Nonempty resultsBase: " + resultsBase); |
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} |
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return true; |
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} |
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private Set<? extends Element> computeResultsBase(RoundEnvironment roundEnvironment, String name) { |
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try { |
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return roundEnvironment. |
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getElementsAnnotatedWith(Class.forName(name).asSubclass(Annotation.class)); |
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} catch(ClassNotFoundException cnfe) { |
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throw new RuntimeException(cnfe); |
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} |
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} |
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/** |
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* Verify non-annotation types result in |
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* IllegalArgumentExceptions. |
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*/ |
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private void testNonAnnotations(RoundEnvironment roundEnvironment) { |
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try { |
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Set<? extends Element> elements = roundEnvironment.getElementsAnnotatedWith((Class)Object.class ); |
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throw new RuntimeException("Illegal argument exception not thrown"); |
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} catch(IllegalArgumentException iae) {} |
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try { |
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Set<? extends Element> elements = roundEnvironment.getElementsAnnotatedWith(processingEnv. |
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getElementUtils(). |
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getTypeElement("java.lang.Object") ); |
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throw new RuntimeException("Illegal argument exception not thrown"); |
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} catch(IllegalArgumentException iae) {} |
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} |
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/* |
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* Hack alert! The class file read below is generated by the |
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* "@compile -XD-d=. Foo.java" directive above. This sneakily |
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* overrides the output location to the current directory where a |
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* subsequent @compile can read the file. This could be improved |
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* if either a new directive like @process accepted class file |
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* arguments (the javac command accepts such arguments but |
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* @compile does not) or the test.src and test.classes properties |
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* were set to be read with @compile jobs. |
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*/ |
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private void writeClassFile() { |
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try { |
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Filer filer = processingEnv.getFiler(); |
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JavaFileObject jfo = filer.createClassFile("Foo"); |
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OutputStream os = jfo.openOutputStream(); |
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// Copy the bytes over |
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System.out.println((new File(".")).getAbsolutePath()); |
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InputStream io = new BufferedInputStream(new FileInputStream(new File(".", "Foo.class"))); |
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try { |
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int datum = io.read(); |
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while(datum != -1) { |
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os.write(datum); |
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datum = io.read(); |
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} |
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} finally { |
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io.close(); |
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} |
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os.close(); |
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} catch (IOException ioe) { |
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throw new RuntimeException(ioe); |
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} |
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} |
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@Override |
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public SourceVersion getSupportedSourceVersion() { |
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return SourceVersion.latest(); |
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} |
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} |