1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8197439 27 * @summary Ensure that constructors don't cause crash in Attr.postAttr 28 * @modules jdk.compiler/com.sun.tools.javac.api 29 * jdk.compiler/com.sun.tools.javac.comp 30 * jdk.compiler/com.sun.tools.javac.tree 31 */ 32 33 import java.io.*; 34 import java.net.*; 35 import java.util.*; 36 37 import javax.tools.*; 38 39 import com.sun.source.tree.CompilationUnitTree; 40 import com.sun.tools.javac.api.JavacTaskImpl; 41 import com.sun.tools.javac.comp.Attr; 42 import com.sun.tools.javac.tree.JCTree; 43 44 public class PostAttrConstructor { 45 46 static class JavaSource extends SimpleJavaFileObject { 47 48 final static String source = 49 "class C {\n" + 50 " public C() {}\n" + 51 "}"; 52 53 JavaSource() { 54 super(URI.create("myfo:/C.java"), JavaFileObject.Kind.SOURCE); 55 } 56 57 @Override 58 public CharSequence getCharContent(boolean ignoreEncodingErrors) { 59 return source; 60 } 61 } 62 63 public static void main(String... args) throws IOException { 64 new PostAttrConstructor().run(); 65 } 66 67 void run() throws IOException { 68 File destDir = new File("classes"); destDir.mkdir(); 69 final JavaCompiler tool = ToolProvider.getSystemJavaCompiler(); 70 JavaSource source = new JavaSource(); 71 JavacTaskImpl ct = (JavacTaskImpl)tool.getTask(null, null, null, 72 Arrays.asList("-d", destDir.getPath()), 73 null, 74 Arrays.asList(source)); 75 CompilationUnitTree cut = ct.parse().iterator().next(); 76 Attr attr = Attr.instance(ct.getContext()); 77 attr.postAttr((JCTree) cut); 78 } 79 80 }