1 /* 2 * Copyright (c) 2012, 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 /* 25 * @test 26 * @bug 7186925 27 * @summary JavapTask passes null to java.io.Writer 28 * @modules jdk.compiler/com.sun.tools.classfile 29 */ 30 31 import java.io.*; 32 import java.util.*; 33 import javax.tools.*; 34 import com.sun.tools.javap.*; 35 36 public class T7186925 37 { 38 public static void main(String... args) { 39 new T7186925().run(); 40 } 41 42 void run() { 43 verify("java.lang.Object"); 44 if (errors > 0) 45 throw new Error(errors + " found."); 46 } 47 48 void verify(String className) { 49 try { 50 JavaFileManager fileManager = JavapFileManager.create(null, null); 51 JavaFileObject fo = fileManager.getJavaFileForInput(StandardLocation.PLATFORM_CLASS_PATH, className, JavaFileObject.Kind.CLASS); 52 if (fo == null) { 53 error("Can't find " + className); 54 } else { 55 JavapTask t = new JavapTask(null, fileManager, null); 56 t.handleOptions(new String[] { "-sysinfo", className }); 57 JavapTask.ClassFileInfo cfInfo = t.read(fo); 58 expectEqual(cfInfo.cf.byteLength(), cfInfo.size); 59 } 60 } catch (NullPointerException ee) { 61 ee.printStackTrace(); 62 error("Exception: " + ee); 63 } catch (Exception ee) { 64 System.err.println("Caught exception: " + ee); 65 } 66 } 67 68 void expectEqual(int found, int expected) { 69 if (found != expected) 70 error("bad value found: " + found + " expected: " + expected); 71 } 72 73 void error(String msg) { 74 System.err.println(msg); 75 errors++; 76 } 77 78 int errors; 79 }