| /* |
| * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2020, Red Hat, Inc. |
| * 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @bug 8256809 |
| * @summary Verify that erroneous symbols have their type fixed between rounds |
| * @library /tools/lib /tools/javac/lib |
| * @modules |
| * jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.main |
| * @build toolbox.ToolBox toolbox.JavacTask toolbox.JarTask toolbox.TestRunner |
| * JavacTestingAbstractProcessor |
| * @run main ErrClassSymbolTypeFixed |
| */ |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.Set; |
| |
| import javax.annotation.processing.RoundEnvironment; |
| import javax.annotation.processing.SupportedAnnotationTypes; |
| import javax.lang.model.element.TypeElement; |
| import javax.lang.model.util.ElementFilter; |
| import javax.tools.Diagnostic; |
| import javax.tools.JavaFileObject; |
| |
| import toolbox.JavacTask; |
| import toolbox.JarTask; |
| import toolbox.Task; |
| import toolbox.TestRunner; |
| import toolbox.ToolBox; |
| |
| public class ErrClassSymbolTypeFixed extends TestRunner { |
| |
| private static final String A_JAVA = "package t1; public @interface A {}"; |
| private static final String B_JAVA = "package t2; public class B {}"; |
| private static final String C_JAVA = "package t3; import t2.B; public class C extends B {}"; |
| private static final String D_JAVA = "import t1.A; import t3.C; import t2.B; @A public class D {}"; |
| |
| private ToolBox tb; |
| |
| public ErrClassSymbolTypeFixed() { |
| super(System.err); |
| tb = new ToolBox(); |
| } |
| |
| public static void main(String... args) throws Exception { |
| new ErrClassSymbolTypeFixed().runTests(); |
| } |
| |
| @Test |
| public void testErrorFixed() throws Exception { |
| Path base = Paths.get("."); |
| Path src1 = base.resolve("src1"); |
| Path src2 = base.resolve("src2"); |
| Path classes = base.resolve("classes"); |
| |
| Files.createDirectories(classes); |
| |
| /* |
| * Create and compile the following: |
| * A: annotation type |
| * B: basic class |
| * C: subclass of B |
| */ |
| tb.writeJavaFiles(src1, A_JAVA, B_JAVA, C_JAVA); |
| |
| new JavacTask(tb) |
| .outdir(classes) |
| .files(tb.findJavaFiles(src1)) |
| .run() |
| .writeAll() |
| .getOutput(Task.OutputKind.DIRECT); |
| |
| // Create a Jar containing only C to include later in the classpath |
| Path jarPath = base.resolve("test.jar"); |
| new JarTask(tb, jarPath) |
| .baseDir(classes) |
| .files("t3") |
| .run() |
| .writeAll() |
| .getOutput(Task.OutputKind.DIRECT); |
| |
| // Delete B from the classpath |
| Files.delete(classes.resolve("t2").resolve("B.class")); |
| |
| /* |
| * Write and compile D, which has the following properties: |
| * - is annotated with A, causing our processor to regenerate B |
| * - imports C before B |
| */ |
| tb.writeJavaFiles(src2, D_JAVA); |
| |
| // If the erroneous ClassSymbol is not reset between rounds, |
| // a NullPointerException will occur later during flow analysis. |
| new JavacTask(tb) |
| .classpath(classes, jarPath) |
| .options("-processor", ErrClassSymbolProcessor.class.getName(), |
| "--processor-path", System.getProperty("test.class.path")) |
| .outdir(classes) |
| .files(tb.findJavaFiles(src2)) |
| .run() |
| .writeAll() |
| .getOutput(Task.OutputKind.DIRECT); |
| } |
| |
| @SupportedAnnotationTypes("t1.A") |
| public static class ErrClassSymbolProcessor extends JavacTestingAbstractProcessor { |
| |
| @Override |
| public final boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { |
| for (TypeElement te : ElementFilter.typesIn(roundEnv.getRootElements())) { |
| createFile(te); |
| } |
| return true; |
| } |
| |
| private void createFile(TypeElement te) { |
| // Generate B.java when the processor reads the @A annotation on D |
| if ("D".equals(te.getSimpleName().toString())) { |
| try { |
| JavaFileObject fo = processingEnv.getFiler().createSourceFile("B"); |
| try (Writer out = fo.openWriter()) { |
| out.write(B_JAVA); |
| } |
| } catch (IOException e) { |
| messager.printMessage(Diagnostic.Kind.ERROR, "problem writing file: " + e); |
| } |
| } |
| } |
| } |
| |
| } |