1 /*
   2  * Copyright (c) 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 import java.io.File;
  25 import java.io.InputStream;
  26 import java.net.URL;
  27 
  28 import javax.sound.midi.MidiSystem;
  29 import javax.sound.midi.spi.SoundbankReader;
  30 
  31 import static java.util.ServiceLoader.load;
  32 
  33 /**
  34  * @test
  35  * @bug 8143909
  36  * @author Sergey Bylokhov
  37  */
  38 public final class ExpectedNPEOnNull {
  39 
  40     public static void main(final String[] args) throws Exception {
  41         testMS();
  42         for (final SoundbankReader sbr : load(SoundbankReader.class)) {
  43             testSBR(sbr);
  44         }
  45     }
  46 
  47     /**
  48      * Tests the part of MidiSystem API, which implemented via SoundbankReader.
  49      */
  50     private static void testMS() throws Exception {
  51         // MidiSystem#getSoundbank(InputStream)
  52         try {
  53             MidiSystem.getSoundbank((InputStream) null);
  54             throw new RuntimeException("NPE is expected");
  55         } catch (final NullPointerException ignored) {
  56         }
  57         // MidiSystem#getSoundbank(URL)
  58         try {
  59             MidiSystem.getSoundbank((URL) null);
  60             throw new RuntimeException("NPE is expected");
  61         } catch (final NullPointerException ignored) {
  62         }
  63         // MidiSystem#getSoundbank(File)
  64         try {
  65             MidiSystem.getSoundbank((File) null);
  66             throw new RuntimeException("NPE is expected");
  67         } catch (final NullPointerException ignored) {
  68         }
  69     }
  70 
  71     /**
  72      * Tests the SoundbankReader API directly.
  73      */
  74     private static void testSBR(final SoundbankReader sbr) throws Exception {
  75         // SoundbankReader#getSoundbank(InputStream)
  76         try {
  77             sbr.getSoundbank((InputStream) null);
  78             throw new RuntimeException("NPE is expected");
  79         } catch (final NullPointerException ignored) {
  80         }
  81         // SoundbankReader#getSoundbank(URL)
  82         try {
  83             sbr.getSoundbank((URL) null);
  84             throw new RuntimeException("NPE is expected");
  85         } catch (final NullPointerException ignored) {
  86         }
  87         // SoundbankReader#getSoundbank(File)
  88         try {
  89             sbr.getSoundbank((File) null);
  90             throw new RuntimeException("NPE is expected");
  91         } catch (final NullPointerException ignored) {
  92         }
  93     }
  94 }