Program: 30381
Project: 30381
Buggy source:
/** 
 * Dispatches the given request and response to the resource for which this dispatcher was acquired. <p>Any runtime exceptions, IOException, or ServletException thrown by the target will be propagated to the caller.
 * @param request The request to be forwarded
 * @param response The response to be forwarded
 * @param dispatcherType The type of dispatch to be performed
 * @throws IOException if an input/output error occurs
 * @throws ServletException if a servlet exception occurs
 * @throws IllegalArgumentException if the dispatcher type is differentfrom FORWARD, ERROR, and ASYNC
 */
public void dispatch(ServletRequest request,ServletResponse response,DispatcherType dispatcherType) throws ServletException, IOException {
  if (!DispatcherType.FORWARD.equals(dispatcherType) && !DispatcherType.ERROR.equals(dispatcherType) && !DispatcherType.ASYNC.equals(dispatcherType)) {
    throw new IllegalArgumentException("String_Node_Str");
  }
  boolean isCommit=(DispatcherType.FORWARD.equals(dispatcherType) || DispatcherType.ERROR.equals(dispatcherType));
  if (Globals.IS_SECURITY_ENABLED) {
    try {
      PrivilegedDispatch dp=new PrivilegedDispatch(request,response,dispatcherType);
      AccessController.doPrivileged(dp);
      if (isCommit && !request.isAsyncStarted()) {
        ApplicationDispatcherForward.commit(request,response,context,wrapper);
      }
    }
 catch (    PrivilegedActionException pe) {
      Exception e=pe.getException();
      if (e instanceof ServletException)       throw (ServletException)e;
      throw (IOException)e;
    }
  }
 else {
    doDispatch(request,response,dispatcherType);
    if (isCommit && !request.isAsyncStarted()) {
      ApplicationDispatcherForward.commit(request,response,context,wrapper);
    }
  }
}

Fixed version (ground truth):
/** 
 * Dispatches the given request and response to the resource for which this dispatcher was acquired. <p>Any runtime exceptions, IOException, or ServletException thrown by the target will be propagated to the caller.
 * @param request The request to be forwarded
 * @param response The response to be forwarded
 * @param dispatcherType The type of dispatch to be performed
 * @throws IOException if an input/output error occurs
 * @throws ServletException if a servlet exception occurs
 * @throws IllegalArgumentException if the dispatcher type is differentfrom FORWARD, ERROR, and ASYNC
 */
public void dispatch(ServletRequest request,ServletResponse response,DispatcherType dispatcherType) throws ServletException, IOException {
  if (DispatcherType.FORWARD != dispatcherType && DispatcherType.ERROR != dispatcherType && DispatcherType.ASYNC != dispatcherType) {
    throw new IllegalArgumentException("String_Node_Str");
  }
  boolean isCommit=(DispatcherType.FORWARD == dispatcherType || DispatcherType.ERROR == dispatcherType);
  if (Globals.IS_SECURITY_ENABLED) {
    try {
      PrivilegedDispatch dp=new PrivilegedDispatch(request,response,dispatcherType);
      AccessController.doPrivileged(dp);
      if (isCommit && !request.isAsyncStarted()) {
        ApplicationDispatcherForward.commit(request,response,context,wrapper);
      }
    }
 catch (    PrivilegedActionException pe) {
      Exception e=pe.getException();
      if (e instanceof ServletException)       throw (ServletException)e;
      throw (IOException)e;
    }
  }
 else {
    doDispatch(request,response,dispatcherType);
    if (isCommit && !request.isAsyncStarted()) {
      ApplicationDispatcherForward.commit(request,response,context,wrapper);
    }
  }
}