1 /* 2 * Copyright (c) 2012, 2016, 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.jdeps/com.sun.tools.classfile 29 * jdk.jdeps/com.sun.tools.javap 30 */ 31 32 import java.io.*; 33 import java.util.*; 34 import javax.tools.*; 35 import com.sun.tools.javap.*; 36 37 public class T7186925 38 { main(String... args)39 public static void main(String... args) { 40 new T7186925().run(); 41 } 42 run()43 void run() { 44 verify("java.lang.Object"); 45 if (errors > 0) 46 throw new Error(errors + " found."); 47 } 48 verify(String className)49 void verify(String className) { 50 try { 51 JavaFileManager fileManager = JavapFileManager.create(null, null); 52 JavaFileObject fo = fileManager.getJavaFileForInput(StandardLocation.PLATFORM_CLASS_PATH, className, JavaFileObject.Kind.CLASS); 53 if (fo == null) { 54 error("Can't find " + className); 55 } else { 56 JavapTask t = new JavapTask(null, fileManager, null); 57 t.handleOptions(new String[] { "-sysinfo", className }); 58 JavapTask.ClassFileInfo cfInfo = t.read(fo); 59 expectEqual(cfInfo.cf.byteLength(), cfInfo.size); 60 } 61 } catch (NullPointerException ee) { 62 ee.printStackTrace(); 63 error("Exception: " + ee); 64 } catch (Exception ee) { 65 System.err.println("Caught exception: " + ee); 66 } 67 } 68 expectEqual(int found, int expected)69 void expectEqual(int found, int expected) { 70 if (found != expected) 71 error("bad value found: " + found + " expected: " + expected); 72 } 73 error(String msg)74 void error(String msg) { 75 System.err.println(msg); 76 errors++; 77 } 78 79 int errors; 80 } 81