| /* |
| * Copyright (c) 2011, 2015, Oracle and/or its affiliates. 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 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 7068451 |
| * @summary Regression: javac compiles fixed sources against previous, |
| * not current, version of generated sources |
| * @modules java.compiler |
| * jdk.compiler |
| */ |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.nio.file.NoSuchFileException; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| import javax.annotation.processing.AbstractProcessor; |
| import javax.annotation.processing.Filer; |
| import javax.annotation.processing.Messager; |
| import javax.annotation.processing.RoundEnvironment; |
| import javax.annotation.processing.SupportedAnnotationTypes; |
| import javax.lang.model.SourceVersion; |
| import javax.lang.model.element.TypeElement; |
| import javax.tools.Diagnostic.Kind; |
| import javax.tools.JavaCompiler; |
| import javax.tools.JavaCompiler.CompilationTask; |
| import javax.tools.StandardJavaFileManager; |
| import javax.tools.StandardLocation; |
| import javax.tools.ToolProvider; |
| |
| public class T7068451 { |
| public static void main(String[] args) throws Exception { |
| new T7068451().run(); |
| } |
| |
| void run() throws Exception { |
| JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); |
| System.err.println("using " + compiler.getClass() + " from " + compiler.getClass().getProtectionDomain().getCodeSource()); |
| |
| File tmp = new File("tmp"); |
| tmp.mkdir(); |
| for (File f: tmp.listFiles()) |
| f.delete(); |
| |
| File input = writeFile(tmp, "X.java", "package p; class X { { p.C.first(); } }"); |
| |
| List<String> opts = Arrays.asList( |
| "-s", tmp.getPath(), |
| "-d", tmp.getPath(), |
| "-XprintRounds"); |
| |
| System.err.println(); |
| System.err.println("FIRST compilation"); |
| System.err.println(); |
| |
| try (StandardJavaFileManager fm = compiler.getStandardFileManager(null, null, null)) { |
| CompilationTask task = compiler.getTask(null, fm, null, opts, null, |
| fm.getJavaFileObjects(input)); |
| task.setProcessors(Collections.singleton(new Proc("first"))); |
| check("compilation", task.call()); |
| |
| writeFile(tmp, "X.java", "package p; class X { { p.C.second(); } }"); |
| |
| //Thread.sleep(2000); |
| |
| System.err.println(); |
| System.err.println("SECOND compilation"); |
| System.err.println(); |
| |
| task = compiler.getTask(null, fm, null, opts, null, |
| fm.getJavaFileObjects(input)); |
| task.setProcessors(Collections.singleton(new Proc("second"))); |
| check("compilation", task.call()); |
| |
| //Thread.sleep(2000); |
| |
| System.err.println(); |
| System.err.println("SECOND compilation, REPEATED"); |
| System.err.println(); |
| |
| task = compiler.getTask(null, fm, null, opts, null, |
| fm.getJavaFileObjects(input)); |
| task.setProcessors(Collections.singleton(new Proc("second"))); |
| check("compilation", task.call()); |
| } |
| } |
| |
| void check(String msg, boolean ok) { |
| System.err.println(msg + ": " + (ok ? "ok" : "failed")); |
| if (!ok) |
| throw new AssertionError(msg); |
| } |
| |
| static File writeFile(File base, String path, String body) throws IOException { |
| File f = new File(base, path); |
| FileWriter out = new FileWriter(f); |
| out.write(body); |
| out.close(); |
| System.err.println("wrote " + path + ": " + body); |
| return f; |
| } |
| |
| @SupportedAnnotationTypes("*") |
| private static class Proc extends AbstractProcessor { |
| final String m; |
| Proc(String m) { |
| this.m = m; |
| } |
| |
| int count; |
| @Override public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { |
| if (roundEnv.processingOver() || count++ > 0) { |
| return false; |
| } |
| |
| Filer filer = processingEnv.getFiler(); |
| Messager messager = processingEnv.getMessager(); |
| |
| System.err.println("running Proc"); |
| try { |
| int len = filer.getResource(StandardLocation.SOURCE_OUTPUT, "p", "C.java").getCharContent(false).length(); |
| messager.printMessage(Kind.NOTE, "C.java: found previous content of length " + len); |
| } catch (FileNotFoundException | NoSuchFileException x) { |
| messager.printMessage(Kind.NOTE, "C.java: not previously there"); |
| } catch (IOException x) { |
| messager.printMessage(Kind.ERROR, "while reading: " + x); |
| } |
| |
| try { |
| String body = "package p; public class C { public static void " + m + "() {} }"; |
| Writer w = filer.createSourceFile("p.C").openWriter(); |
| w.write(body); |
| w.close(); |
| messager.printMessage(Kind.NOTE, "C.java: wrote new content: " + body); |
| } catch (IOException x) { |
| messager.printMessage(Kind.ERROR, "while writing: " + x); |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public SourceVersion getSupportedSourceVersion() { |
| return SourceVersion.latest(); |
| } |
| } |
| } |
| |