T7031108.java revision 951:02ba4ff98742
1/* 2 * Copyright (c) 2011, 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 7031108 27 * @summary NPE in javac.jvm.ClassReader.findMethod in PackageElement.enclosedElements from AP in incr build 28 * @library ../lib 29 * @build JavacTestingAbstractProcessor T7031108 30 * @run main T7031108 31 */ 32 33import java.io.*; 34import java.net.*; 35import java.util.*; 36import javax.annotation.processing.*; 37import javax.lang.model.element.*; 38import javax.tools.*; 39import javax.tools.JavaCompiler.CompilationTask; 40 41public class T7031108 extends JavacTestingAbstractProcessor { 42 public static void main(String... args) throws Exception { 43 new T7031108().run(); 44 } 45 46 /* Class containing a local class definition; 47 * compiled class file will have an EnclosedMethod attribute. 48 */ 49 static final JavaSource pC = 50 new JavaSource("p/C.java", 51 "package p;\n" 52 + "class C {\n" 53 + " void m() {\n" 54 + " new Runnable() {\n" 55 + " public void run() {\n" 56 + " new Runnable() {\n" 57 + " public void run() { }\n" 58 + " };\n" 59 + " }\n" 60 + " };\n" 61 + " }\n" 62 + "}"); 63 64 /* Dummy source file to compile while running anno processor. */ 65 static final JavaSource dummy = 66 new JavaSource("Dummy.java", 67 "class Dummy { }"); 68 69 void run() throws Exception { 70 JavaCompiler comp = ToolProvider.getSystemJavaCompiler(); 71 StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null); 72 73 // step 1: compile test classes 74 File cwd = new File("."); 75 fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(cwd)); 76 compile(comp, fm, null, null, pC); 77 78 // step 2: verify functioning of processor 79 fm.setLocation(StandardLocation.ANNOTATION_PROCESSOR_PATH, 80 fm.getLocation(StandardLocation.CLASS_PATH)); 81 fm.setLocation(StandardLocation.CLASS_PATH, Arrays.asList(cwd)); 82 compile(comp, fm, null, getClass().getName(), dummy); 83 84 File pC_class = new File(new File("p"), "C.class"); 85 pC_class.delete(); 86 87 DiagnosticCollector<JavaFileObject> dc = new DiagnosticCollector<JavaFileObject>(); 88 compile(comp, fm, dc, getClass().getName(), dummy); 89 List<Diagnostic<? extends JavaFileObject>> diags =dc.getDiagnostics(); 90 91 System.err.println(diags); 92 switch (diags.size()) { 93 case 0: 94 throw new Exception("no diagnostics received"); 95 case 1: 96 String code = diags.get(0).getCode(); 97 String expect = "compiler.err.proc.cant.access.1"; 98 if (!expect.equals(code)) 99 throw new Exception("unexpected diag code: " + code 100 + ", expected: " + expect); 101 break; 102 default: 103 throw new Exception("unexpected diags received"); 104 } 105 } 106 107 void compile(JavaCompiler comp, JavaFileManager fm, 108 DiagnosticListener<JavaFileObject> dl, 109 String processor, JavaFileObject... files) throws Exception { 110 System.err.println("compile processor:" + processor + ", files:" + Arrays.asList(files)); 111 List<String> opts = new ArrayList<String>(); 112 if (processor != null) { 113 // opts.add("-verbose"); 114 opts.addAll(Arrays.asList("-processor", processor)); 115 } 116 CompilationTask task = comp.getTask(null, fm, dl, opts, null, Arrays.asList(files)); 117 boolean ok = task.call(); 118 if (dl == null && !ok) 119 throw new Exception("compilation failed"); 120 } 121 122 static class JavaSource extends SimpleJavaFileObject { 123 JavaSource(String name, String text) { 124 super(URI.create("js://" + name), JavaFileObject.Kind.SOURCE); 125 this.text = text; 126 } 127 @Override 128 public CharSequence getCharContent(boolean ignoreEncodingErrors) { 129 return text; 130 } 131 final String text; 132 } 133 134 // annotation processor method 135 136 @Override 137 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { 138 if (!roundEnv.processingOver()) { 139 PackageElement p = elements.getPackageElement("p"); 140 List<? extends Element> elems = p.getEnclosedElements(); 141 System.err.println("contents of package p: " + elems); 142 if (elems.size() != 1 || !elems.get(0).getSimpleName().contentEquals("C")) { 143 messager.printMessage(Diagnostic.Kind.ERROR, "unexpected package contents"); 144 } 145 } 146 return true; 147 } 148} 149 150