JDK-6498938 : Faulty comparison of TypeMirror objects in RoundEnvironment.getElementsAnnotatedWith implementation
  • Type: Bug
  • Status: Closed
  • Resolution: Fixed
  • Component: core-libs
  • Sub-Component: javax.annotation.processing
  • Priority: P3
  • Affected Version: 6
  • OS: generic
  • CPU: generic
  • Submit Date: 2006-11-30
  • Updated Date: 2014-01-06
  • Resolved Date: 2011-07-15
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JDK 7
7 b51Fixed
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Description
javax.lang.model.TypeMirror objects should be compared for semantic equality using javax.lang.model.util.Types.isSameType rather than TypeMirror.equals.  Code used to implement RoundEnvironment.getElementsAnnotatedWith uses equals for this purpose.

Comments
SUGGESTED FIX --- old/src/share/classes/com/sun/tools/javac/processing/JavacRoundEnvironment.java Tue Feb 24 17:49:21 2009 +++ new/src/share/classes/com/sun/tools/javac/processing/JavacRoundEnvironment.java Tue Feb 24 17:49:21 2009 @@ -1,5 +1,5 @@ /* - * Copyright 2005-2008 Sun Microsystems, Inc. All Rights Reserved. + * Copyright 2005-2009 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 @@ -111,6 +111,7 @@ */ public Set<? extends Element> getElementsAnnotatedWith(TypeElement a) { Set<Element> result = Collections.emptySet(); + Types typeUtil = processingEnv.getTypeUtils(); if (a.getKind() != ElementKind.ANNOTATION_TYPE) throw new IllegalArgumentException(NOT_AN_ANNOTATION_TYPE + a); @@ -122,7 +123,7 @@ throw new AssertionError("Bad implementation type for " + tm); ElementScanner6<Set<Element>, DeclaredType> scanner = - new AnnotationSetScanner(result); + new AnnotationSetScanner(result, typeUtil); for (Element element : rootElements) result = scanner.scan(element, annotationTypeElement); @@ -135,9 +136,11 @@ ElementScanner6<Set<Element>, DeclaredType> { // Insertion-order preserving set Set<Element> annotatedElements = new LinkedHashSet<Element>(); + Types typeUtil; - AnnotationSetScanner(Set<Element> defaultSet) { + AnnotationSetScanner(Set<Element> defaultSet, Types typeUtil) { super(defaultSet); + this.typeUtil = typeUtil; } @Override @@ -145,7 +148,7 @@ java.util.List<? extends AnnotationMirror> annotationMirrors = processingEnv.getElementUtils().getAllAnnotationMirrors(e); for (AnnotationMirror annotationMirror : annotationMirrors) { - if (annotationMirror.getAnnotationType().equals(p)) + if (typeUtil.isSameType(annotationMirror.getAnnotationType(), p)) annotatedElements.add(e); } e.accept(this, p); --- old/test/tools/javac/processing/environment/round/TestElementsAnnotatedWith.java Tue Feb 24 17:49:24 2009 +++ new/test/tools/javac/processing/environment/round/TestElementsAnnotatedWith.java Tue Feb 24 17:49:24 2009 @@ -1,5 +1,5 @@ /* - * Copyright 2006-2007 Sun Microsystems, Inc. All Rights Reserved. + * Copyright 2006-2009 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 @@ -23,7 +23,7 @@ /* * @test - * @bug 6397298 6400986 6425592 6449798 6453386 6508401 + * @bug 6397298 6400986 6425592 6449798 6453386 6508401 6498938 * @summary Tests that getElementsAnnotatedWith works properly. * @author Joseph D. Darcy * @compile TestElementsAnnotatedWith.java @@ -31,16 +31,22 @@ * @compile -processor TestElementsAnnotatedWith -proc:only SurfaceAnnotations.java * @compile -processor TestElementsAnnotatedWith -proc:only BuriedAnnotations.java * @compile -processor TestElementsAnnotatedWith -proc:only Part1.java Part2.java - * @compile -processor TestElementsAnnotatedWith -proc:only TestElementsAnnotatedWith.java * @compile -processor TestElementsAnnotatedWith -proc:only C2.java + * @compile -processor TestElementsAnnotatedWith -proc:only Foo.java + * @compile -XD-d=. Foo.java + * @compile -processor TestElementsAnnotatedWith -proc:only TestElementsAnnotatedWith.java */ import java.lang.annotation.Annotation; +import java.io.*; import java.util.Collections; import java.util.Set; import java.util.HashSet; +import java.util.List; +import java.util.ArrayList; import java.util.Arrays; import javax.annotation.processing.*; +import javax.tools.*; import javax.lang.model.SourceVersion; import javax.lang.model.element.*; import javax.lang.model.util.*; @@ -120,6 +126,9 @@ System.err.println("AnnotatedElementInfo: " + annotatedElementInfo); throw new RuntimeException(); } + + if("TestElementsAnnotatedWith".equals(firstType.getSimpleName().toString())) + writeClassFile(); // Start another round to test class file input } else { // If processing is over without an error, the specified // elements should be empty so an empty set should be returned. @@ -161,6 +170,37 @@ } catch(IllegalArgumentException iae) {} } + /* + * Hack alert! The class file read below is generated by the + * "@compile -XD-d=. Foo.java" directive above. This sneakily + * overrides the output location to the current directory where a + * subsequent @compile can read the file. This could be improved + * if either a new directive like @process accepted class file + * arguments (the javac command accepts such arguments but + * @compile does not) or the test.src and test.classes properties + * were set to be read with @compile jobs. + */ + private void writeClassFile() { + try { + Filer filer = processingEnv.getFiler(); + JavaFileObject jfo = filer.createClassFile("Foo"); + OutputStream os = jfo.openOutputStream(); + // Copy the bytes over + System.out.println((new File(".")).getAbsolutePath()); + InputStream io = new BufferedInputStream(new FileInputStream(new File(".", "Foo.class"))); + int datum = io.read(); + while(datum != -1) { + os.write(datum); + datum = io.read(); + } + os.close(); + } catch (IOException io) { + throw new RuntimeException(io); + } + + + } + @Override public SourceVersion getSupportedSourceVersion() { return SourceVersion.latest(); --- /dev/null Tue Feb 24 17:49:27 2009 +++ new/test/tools/javac/processing/environment/round/Foo.java Tue Feb 24 17:49:26 2009 @@ -0,0 +1,27 @@ +/* + * 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. + */ + +@AnnotatedElementInfo(annotationName="AnnotatedElementInfo", + expectedSize=1, + names="Foo") +public class Foo {}
2009-02-25

PUBLIC COMMENTS See forum thread http://forums.sun.com/thread.jspa?forumID=514&threadID=790568
2009-01-30

EVALUATION Should be fixed.
2006-11-30