undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
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/*
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* Copyright (c) 2012, 2024, 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 8171355
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* @summary Test behavior of javax.lang.model.util.Elements.getOrigin.
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* @library /tools/lib
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* @modules jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.main
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* @build toolbox.ToolBox toolbox.JavacTask toolbox.TestRunner
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* @build TestOrigin
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* @run main TestOrigin
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*/
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import java.io.OutputStream;
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import java.lang.instrument.ClassFileTransformer;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import javax.annotation.processing.*;
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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.element.ModuleElement.Directive;
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import javax.lang.model.element.ModuleElement.ExportsDirective;
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import javax.lang.model.element.ModuleElement.OpensDirective;
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import javax.lang.model.element.ModuleElement.RequiresDirective;
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import javax.lang.model.util.Elements;
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import java.lang.classfile.*;
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import java.lang.classfile.attribute.*;
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import toolbox.JavacTask;
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import toolbox.Task;
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import toolbox.TestRunner;
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import toolbox.ToolBox;
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public class TestOrigin extends TestRunner {
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private final ToolBox tb;
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TestOrigin() {
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super(System.err);
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tb = new ToolBox();
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}
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public static void main(String... args) throws Exception {
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new TestOrigin().runTests(m -> new Object[] { Paths.get(m.getName()) });
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}
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@Test
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public void testGeneratedConstr(Path base) throws Exception {
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Path src = base.resolve("src");
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tb.writeJavaFiles(src,
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"package test; public class Test { private void test() { } }",
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"class Dummy {}");
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Path classes = base.resolve("classes");
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tb.createDirectories(classes);
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List<String> log;
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List<String> expected;
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//from source:
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log = new JavacTask(tb)
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.options("-processor", ListMembersAP.class.getName())
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run()
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.writeAll()
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.getOutputLines(Task.OutputKind.STDOUT);
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expected = Arrays.asList(
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"<init>:MANDATED",
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"test:EXPLICIT");
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if (!expected.equals(log))
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throw new AssertionError("expected output not found: " + log);
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//from class:
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log = new JavacTask(tb)
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.options("-classpath", classes.toString(),
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"-processorpath", System.getProperty("test.classes"),
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"-processor", ListMembersAP.class.getName())
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.outdir(classes)
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.files(src.resolve("Dummy.java"))
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.run()
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.writeAll()
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.getOutputLines(Task.OutputKind.STDOUT);
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expected = Arrays.asList(
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"<init>:EXPLICIT",
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"test:EXPLICIT");
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if (!expected.equals(log))
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throw new AssertionError("expected output not found: " + log);
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}
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@SupportedAnnotationTypes("*")
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public static final class ListMembersAP extends AbstractProcessor {
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@Override
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public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
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if (!roundEnv.processingOver())
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return false;
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Elements elements = processingEnv.getElementUtils();
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TypeElement test = elements.getTypeElement("test.Test");
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List<? extends Element> members = new ArrayList<>(test.getEnclosedElements());
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members.sort((e1, e2) -> e1.getSimpleName().toString().compareTo(e2.getSimpleName().toString()));
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for (Element el : members) {
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System.out.println(el.getSimpleName() + ":" + elements.getOrigin(el));
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}
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return false;
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}
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@Override
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public SourceVersion getSupportedSourceVersion() {
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return SourceVersion.latestSupported();
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}
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}
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@Test
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public void testRepeatableAnnotations(Path base) throws Exception {
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Path src = base.resolve("src");
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tb.writeJavaFiles(src,
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"package test; @A @A public class Test { }",
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"package test;" +
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"import java.lang.annotation.*;" +
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"@Repeatable(Container.class)" +
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"@Retention(RetentionPolicy.CLASS)" +
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"@interface A {}",
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"package test; @interface Container { A[] value(); }",
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"class Dummy {}");
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Path classes = base.resolve("classes");
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tb.createDirectories(classes);
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List<String> log;
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List<String> expected;
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//from source:
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log = new JavacTask(tb)
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.options("-processor", ListAnnotationsAP.class.getName())
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run()
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.writeAll()
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.getOutputLines(Task.OutputKind.STDOUT);
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expected = List.of("test.Container:MANDATED");
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if (!expected.equals(log))
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throw new AssertionError("expected output not found: " + log);
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//from class:
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log = new JavacTask(tb)
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.options("-classpath", classes.toString(),
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"-processorpath", System.getProperty("test.classes"),
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"-processor", ListAnnotationsAP.class.getName())
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.outdir(classes)
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.files(src.resolve("Dummy.java"))
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.run()
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.writeAll()
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.getOutputLines(Task.OutputKind.STDOUT);
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expected = List.of("test.Container:EXPLICIT");
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if (!expected.equals(log))
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throw new AssertionError("expected output not found: " + log);
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}
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@SupportedAnnotationTypes("*")
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public static final class ListAnnotationsAP extends AbstractProcessor {
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@Override
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public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
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if (!roundEnv.processingOver())
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return false;
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Elements elements = processingEnv.getElementUtils();
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TypeElement test = elements.getTypeElement("test.Test");
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for (AnnotationMirror am : test.getAnnotationMirrors()) {
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System.out.println(am.getAnnotationType() + ":" + elements.getOrigin(test, am));
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}
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return false;
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}
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@Override
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public SourceVersion getSupportedSourceVersion() {
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return SourceVersion.latestSupported();
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}
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}
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@Test
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public void testModuleDirectives(Path base) throws Exception {
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Path src = base.resolve("src");
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tb.writeJavaFiles(src,
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"module m {}",
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"package p1; class Test {}",
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"package p2; class Test {}",
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"package p3; class Test {}",
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"package test; class Dummy {}");
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Path classes = base.resolve("classes");
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tb.createDirectories(classes);
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List<String> log;
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List<String> expected;
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//from source:
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log = new JavacTask(tb)
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.options("-processor", ListModuleAP.class.getName())
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run()
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.writeAll()
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.getOutputLines(Task.OutputKind.STDOUT);
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expected = List.of("REQUIRES:java.base:MANDATED");
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if (!expected.equals(log))
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throw new AssertionError("expected output not found: " + log);
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tb.writeJavaFiles(src,
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"module m {" +
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" requires java.base;" +
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" requires java.compiler;" +
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" requires jdk.compiler;" +
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" exports p1;" +
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" exports p2;" +
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" exports p3;" +
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" opens p1;" +
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" opens p2;" +
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" opens p3;" +
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"}");
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new JavacTask(tb)
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.outdir(classes)
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.files(src.resolve("module-info.java"))
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.run()
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.writeAll();
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Path moduleInfo = classes.resolve("module-info.class");
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ClassModel cf = ClassFile.of().parse(moduleInfo);
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ModuleAttribute module = cf.findAttribute(Attributes.module()).orElseThrow();
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List<ModuleRequireInfo> newRequires = new ArrayList<>(3);
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newRequires.add(ModuleRequireInfo.of(module.requires().get(0).requires(), ClassFile.ACC_MANDATED, module.requires().get(0).requiresVersion().orElse(null)));
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newRequires.add(ModuleRequireInfo.of(module.requires().get(1).requires(), ClassFile.ACC_SYNTHETIC, module.requires().get(1).requiresVersion().orElse(null)));
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newRequires.add(module.requires().get(2));
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List<ModuleExportInfo> newExports = new ArrayList<>(3);
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newExports.add(ModuleExportInfo.of(module.exports().get(0).exportedPackage(), ClassFile.ACC_MANDATED, module.exports().get(0).exportsTo()));
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newExports.add(ModuleExportInfo.of(module.exports().get(1).exportedPackage(), ClassFile.ACC_SYNTHETIC, module.exports().get(1).exportsTo()));
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newExports.add(module.exports().get(2));
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List<ModuleOpenInfo> newOpens = new ArrayList<>(3);
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newOpens.add(ModuleOpenInfo.of(module.opens().get(0).openedPackage(), ClassFile.ACC_MANDATED, module.opens().get(0).opensTo()));
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newOpens.add(ModuleOpenInfo.of(module.opens().get(1).openedPackage(), ClassFile.ACC_SYNTHETIC, module.opens().get(1).opensTo()));
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newOpens.add(module.opens().get(2));
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ModuleAttribute newModule = ModuleAttribute.of(module.moduleName(),
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module.moduleFlagsMask(),
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module.moduleVersion().orElse(null),
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newRequires,
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newExports,
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newOpens,
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module.uses(),
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module.provides());
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byte[] newClassFileBytes = ClassFile.of().transformClass(cf, ClassTransform.dropping(ce -> ce instanceof ModuleAttribute)
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.andThen(ClassTransform.endHandler(classBuilder -> classBuilder.with(newModule))));
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try (OutputStream out = Files.newOutputStream(moduleInfo)) {
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out.write(newClassFileBytes);
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}
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//from class:
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log = new JavacTask(tb)
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.options("-processor", ListModuleAP.class.getName())
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.outdir(classes)
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.files(src.resolve("test").resolve("Dummy.java"))
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.run()
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.writeAll()
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.getOutputLines(Task.OutputKind.STDOUT);
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expected = Arrays.asList(
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"REQUIRES:java.base:MANDATED",
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"REQUIRES:java.compiler:SYNTHETIC",
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"REQUIRES:jdk.compiler:EXPLICIT",
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"EXPORTS:p1:MANDATED",
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"EXPORTS:p2:SYNTHETIC",
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"EXPORTS:p3:EXPLICIT",
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"OPENS:p1:MANDATED",
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"OPENS:p2:SYNTHETIC",
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"OPENS:p3:EXPLICIT");
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if (!expected.equals(log))
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throw new AssertionError("expected output not found: " + log);
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}
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@SupportedAnnotationTypes("*")
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public static final class ListModuleAP extends AbstractProcessor {
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@Override
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public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
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if (!roundEnv.processingOver())
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return false;
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Elements elements = processingEnv.getElementUtils();
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ModuleElement m = elements.getModuleElement("m");
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for (Directive d : m.getDirectives()) {
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switch (d.getKind()) {
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case REQUIRES -> {
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RequiresDirective rd = (RequiresDirective) d;
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System.out.println(rd.getKind() + ":" +
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rd.getDependency().getQualifiedName() + ":" +
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elements.getOrigin(m, rd));
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}
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case EXPORTS -> {
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ExportsDirective ed = (ExportsDirective) d;
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System.out.println(ed.getKind() + ":" +
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ed.getPackage() + ":" +
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elements.getOrigin(m, ed));
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}
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case OPENS -> {
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OpensDirective od = (OpensDirective) d;
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System.out.println(od.getKind() + ":" +
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od.getPackage() + ":" +
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elements.getOrigin(m, od));
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}
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}
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}
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return false;
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}
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@Override
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public SourceVersion getSupportedSourceVersion() {
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return SourceVersion.latestSupported();
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}
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}
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}
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