1/* 2 * Copyright (c) 2010, 2015, 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/* @test 25 * @bug 6917288 26 * @summary Unnamed nested class is not generated 27 * @modules jdk.compiler 28 */ 29 30import java.io.*; 31import java.util.*; 32 33public class T6917288 { 34 // refers to kind of reference to an anon inner class that may be generated 35 enum Kind { NONE, FALSE, TRUE, ALWAYS }; 36 37 public static void main(String... args) throws Exception { 38 new T6917288().run(); 39 } 40 41 void run() throws Exception { 42 for (Kind k: Kind.values()) { 43 test(k); 44 } 45 46 if (errors > 0) 47 throw new Exception(errors + " errors occurred"); 48 } 49 50 /** 51 * Run a test case for Kind k. 52 */ 53 void test(Kind k) throws Exception { 54 System.err.println("Test " + (++count) + ": " + k); 55 File testDir = new File("test" + count); 56 File srcDir = new File(testDir, "src"); 57 srcDir.mkdirs(); 58 File classesDir = new File(testDir, "classes"); 59 classesDir.mkdirs(); 60 61 List<String> opts = new ArrayList<String>(); 62 opts.add("-d"); 63 opts.add(classesDir.getPath()); 64 65 File f = writeFile(srcDir, k); 66 int rc = compile(opts, f); 67 if (rc != 0) { 68 error("compilation failed: rc=" + rc); 69 return; 70 } 71 72 check(classesDir, "Test.class", "Test$Inner.class", "Test$1.class"); 73 } 74 75 /** 76 * Compile files with given options. 77 * Display any output from compiler, and return javac return code. 78 */ 79 int compile(List<String> opts, File... files) { 80 List<String> args = new ArrayList<String>(); 81 args.addAll(opts); 82 for (File f: files) 83 args.add(f.getPath()); 84 StringWriter sw = new StringWriter(); 85 PrintWriter pw = new PrintWriter(sw); 86 int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]), pw); 87 pw.close(); 88 String out = sw.toString(); 89 if (out.length() > 0) 90 System.err.println(out); 91 return rc; 92 } 93 94 /** 95 * Check that a directory contains the expected files. 96 */ 97 void check(File dir, String... paths) { 98 Set<String> found = new TreeSet<String>(Arrays.asList(dir.list())); 99 Set<String> expect = new TreeSet<String>(Arrays.asList(paths)); 100 if (found.equals(expect)) 101 return; 102 for (String f: found) { 103 if (!expect.contains(f)) 104 error("Unexpected file found: " + f); 105 } 106 for (String e: expect) { 107 if (!found.contains(e)) 108 error("Expected file not found: " + e); 109 } 110 } 111 112 /** 113 * Write source file for test case k. 114 */ 115 File writeFile(File dir, Kind k) throws Exception { 116 StringBuilder sb = new StringBuilder(); 117 sb.append("public class Test {\n"); 118 sb.append(" private Inner inner;\n"); 119 120 // generate different cases of an anon inner class 121 if (k != Kind.NONE) { 122 sb.append(" private void m() {\n"); 123 sb.append(" "); 124 switch (k) { 125 case FALSE: case TRUE: 126 sb.append("if (" + k.toString().toLowerCase() + ") "); 127 } 128 sb.append("new Runnable() { public void run() { } };\n"); 129 sb.append(" }\n"); 130 } 131 132 sb.append(" private void init() {\n"); 133 sb.append(" inner = new Inner();\n"); 134 sb.append(" }\n"); 135 sb.append("\n"); 136 sb.append(" private static class Inner {\n"); 137 sb.append(" private Inner() {\n"); 138 sb.append(" }\n"); 139 sb.append(" }\n"); 140 sb.append("}\n"); 141 142 File f = new File(dir, "Test.java"); 143 FileWriter w = new FileWriter(f); 144 w.write(sb.toString()); 145 w.close(); 146 return f; 147 } 148 149 /** 150 * Record an error message. 151 */ 152 void error(String msg) { 153 System.err.println(msg); 154 errors++; 155 } 156 157 int count; 158 int errors; 159} 160