Program: 107658
Project: 107658
Buggy source:
/** 
 * Initializes a new <tt>Renderer</tt> instance which is to either perform playback on or sound a notification through a device contributed by this system. The (default) implementation of <tt>AudioSystem</tt> ignores the value of the <tt>playback</tt> argument and delegates to  {@link DeviceSystem#createRenderer()}.
 * @param playback <tt>true</tt> if the new instance is to perform playbackor <tt>false</tt> if the new instance is to sound a notification
 * @return a new <tt>Renderer</tt> instance which is to either performplayback on or sound a notification through a device contributed by this system
 */
public Renderer createRenderer(boolean playback){
  String className=getRendererClassName();
  Renderer renderer;
  if (className == null) {
    renderer=null;
  }
 else {
    Class<?> clazz;
    try {
      clazz=Class.forName(className);
    }
 catch (    Throwable t) {
      if (t instanceof ThreadDeath)       throw (ThreadDeath)t;
 else {
        clazz=null;
        logger.error("String_Node_Str" + className,t);
      }
    }
    if (clazz == null) {
      renderer=null;
    }
 else     if (!Renderer.class.isAssignableFrom(clazz)) {
      renderer=null;
    }
 else {
      boolean superCreateRenderer;
      if (((getFeatures() & FEATURE_NOTIFY_AND_PLAYBACK_DEVICES) != 0) && AbstractAudioRenderer.class.isAssignableFrom(clazz)) {
        Constructor<?> constructor=null;
        try {
          constructor=clazz.getConstructor(boolean.class);
        }
 catch (        NoSuchMethodException nsme) {
        }
catch (        SecurityException se) {
        }
        if ((constructor != null) && constructor.isAccessible()) {
          superCreateRenderer=false;
          try {
            renderer=(Renderer)constructor.newInstance(playback);
          }
 catch (          Throwable t) {
            if (t instanceof ThreadDeath)             throw (ThreadDeath)t;
 else {
              renderer=null;
              logger.error("String_Node_Str" + className + "String_Node_Str",t);
            }
          }
          if ((renderer != null) && !playback) {
            CaptureDeviceInfo device=getSelectedDevice(DataFlow.NOTIFY);
            if (device == null) {
              renderer=null;
            }
 else {
              MediaLocator locator=device.getLocator();
              if (locator != null) {
                ((AbstractAudioRenderer<?>)renderer).setLocator(locator);
              }
            }
          }
        }
 else {
          superCreateRenderer=true;
          renderer=null;
        }
      }
 else {
        superCreateRenderer=true;
        renderer=null;
      }
      if (superCreateRenderer && (renderer == null))       renderer=super.createRenderer();
    }
  }
  return renderer;
}

Fixed version (ground truth):
/** 
 * Initializes a new <tt>Renderer</tt> instance which is to either perform playback on or sound a notification through a device contributed by this system. The (default) implementation of <tt>AudioSystem</tt> ignores the value of the <tt>playback</tt> argument and delegates to  {@link DeviceSystem#createRenderer()}.
 * @param playback <tt>true</tt> if the new instance is to perform playbackor <tt>false</tt> if the new instance is to sound a notification
 * @return a new <tt>Renderer</tt> instance which is to either performplayback on or sound a notification through a device contributed by this system
 */
public Renderer createRenderer(boolean playback){
  String className=getRendererClassName();
  Renderer renderer;
  if (className == null) {
    renderer=null;
  }
 else {
    Class<?> clazz;
    try {
      clazz=Class.forName(className);
    }
 catch (    Throwable t) {
      if (t instanceof ThreadDeath)       throw (ThreadDeath)t;
 else {
        clazz=null;
        logger.error("String_Node_Str" + className,t);
      }
    }
    if (clazz == null) {
      renderer=null;
    }
 else     if (!Renderer.class.isAssignableFrom(clazz)) {
      renderer=null;
    }
 else {
      boolean superCreateRenderer;
      if (((getFeatures() & FEATURE_NOTIFY_AND_PLAYBACK_DEVICES) != 0) && AbstractAudioRenderer.class.isAssignableFrom(clazz)) {
        Constructor<?> constructor=null;
        try {
          constructor=clazz.getConstructor(boolean.class);
        }
 catch (        NoSuchMethodException nsme) {
        }
catch (        SecurityException se) {
        }
        if ((constructor != null)) {
          superCreateRenderer=false;
          try {
            renderer=(Renderer)constructor.newInstance(playback);
          }
 catch (          Throwable t) {
            if (t instanceof ThreadDeath)             throw (ThreadDeath)t;
 else {
              renderer=null;
              logger.error("String_Node_Str" + className + "String_Node_Str",t);
            }
          }
          if ((renderer != null) && !playback) {
            CaptureDeviceInfo device=getSelectedDevice(DataFlow.NOTIFY);
            if (device == null) {
              renderer=null;
            }
 else {
              MediaLocator locator=device.getLocator();
              if (locator != null) {
                ((AbstractAudioRenderer<?>)renderer).setLocator(locator);
              }
            }
          }
        }
 else {
          superCreateRenderer=true;
          renderer=null;
        }
      }
 else {
        superCreateRenderer=true;
        renderer=null;
      }
      if (superCreateRenderer && (renderer == null))       renderer=super.createRenderer();
    }
  }
  return renderer;
}