Program: 150309
Project: 150309
Buggy source:
@Override public void messageReceived(ChannelHandlerContext ctx,MessageEvent e) throws Exception {
  Object msg=e.getMessage();
  if (msg instanceof HttpRequest) {
    HttpRequest request=(HttpRequest)msg;
    PathDecoder rpd=new PathDecoder(request.getUri());
    String ns=rpd.getPathElement(nsPathIdx);
    if (ns == null || !nsValidator.isValidNamespace(ns)) {
      String userAgent=request.getHeader("String_Node_Str");
      String remoteIpAddress=((InetSocketAddress)e.getChannel().getRemoteAddress()).getAddress().getHostAddress();
      throw new SecurityException(String.format("String_Node_Str",ns,remoteIpAddress,userAgent));
    }
    if (request.getMethod() == HttpMethod.POST) {
    }
 else     if (request.getMethod() == HttpMethod.GET) {
      boolean allowGetAccess=Boolean.parseBoolean(props.getWildcardProperty(ns + ALLOW_GET_ACCESS,"String_Node_Str"));
      if (!allowGetAccess) {
        String userAgent=request.getHeader("String_Node_Str");
        String remoteIpAddress=((InetSocketAddress)e.getChannel().getRemoteAddress()).getAddress().getHostAddress();
        throw new SecurityException(String.format("String_Node_Str",ns,remoteIpAddress,userAgent));
      }
    }
 else     if (request.getMethod() == HttpMethod.DELETE) {
      boolean allowDelAccess=Boolean.parseBoolean(props.getWildcardProperty(ns + ALLOW_DELETE_ACCESS,"String_Node_Str"));
      if (!allowDelAccess) {
        String userAgent=request.getHeader("String_Node_Str");
        String remoteIpAddress=((InetSocketAddress)e.getChannel().getRemoteAddress()).getAddress().getHostAddress();
        throw new SecurityException(String.format("String_Node_Str",ns,remoteIpAddress,userAgent));
      }
    }
 else {
      String userAgent=request.getHeader("String_Node_Str");
      String remoteIpAddress=((InetSocketAddress)e.getChannel().getRemoteAddress()).getAddress().getHostAddress();
      throw new SecurityException(String.format("String_Node_Str",ns,remoteIpAddress,userAgent));
    }
    Channels.fireMessageReceived(ctx,request,e.getRemoteAddress());
  }
 else {
    ctx.sendUpstream(e);
  }
}

Fixed version (ground truth):
@Override public void messageReceived(ChannelHandlerContext ctx,MessageEvent e) throws Exception {
  Object msg=e.getMessage();
  if (msg instanceof HttpRequest) {
    HttpRequest request=(HttpRequest)msg;
    if (!validator.isValidUri(request.getUri())) {
      String userAgent=request.getHeader("String_Node_Str");
      String remoteIpAddress=((InetSocketAddress)e.getChannel().getRemoteAddress()).getAddress().getHostAddress();
      throw new InvalidPathException(String.format("String_Node_Str",request.getUri(),remoteIpAddress,userAgent));
    }
    PathDecoder rpd=new PathDecoder(request.getUri());
    String ns=rpd.getPathElement(nsPathIdx);
    if (ns == null) {
      String userAgent=request.getHeader("String_Node_Str");
      String remoteIpAddress=((InetSocketAddress)e.getChannel().getRemoteAddress()).getAddress().getHostAddress();
      throw new InvalidPathException(String.format("String_Node_Str",remoteIpAddress,userAgent));
    }
    if (request.getMethod() == HttpMethod.POST) {
    }
 else     if (request.getMethod() == HttpMethod.GET) {
      boolean allowGetAccess=Boolean.parseBoolean(props.getWildcardProperty(ns + ALLOW_GET_ACCESS,"String_Node_Str"));
      if (!allowGetAccess) {
        String userAgent=request.getHeader("String_Node_Str");
        String remoteIpAddress=((InetSocketAddress)e.getChannel().getRemoteAddress()).getAddress().getHostAddress();
        throw new HttpSecurityException(String.format("String_Node_Str",ns,remoteIpAddress,userAgent));
      }
    }
 else     if (request.getMethod() == HttpMethod.DELETE) {
      boolean allowDelAccess=Boolean.parseBoolean(props.getWildcardProperty(ns + ALLOW_DELETE_ACCESS,"String_Node_Str"));
      if (!allowDelAccess) {
        String userAgent=request.getHeader("String_Node_Str");
        String remoteIpAddress=((InetSocketAddress)e.getChannel().getRemoteAddress()).getAddress().getHostAddress();
        throw new HttpSecurityException(String.format("String_Node_Str",ns,remoteIpAddress,userAgent));
      }
    }
 else {
      String userAgent=request.getHeader("String_Node_Str");
      String remoteIpAddress=((InetSocketAddress)e.getChannel().getRemoteAddress()).getAddress().getHostAddress();
      throw new HttpSecurityException(String.format("String_Node_Str",ns,remoteIpAddress,userAgent));
    }
    Channels.fireMessageReceived(ctx,request,e.getRemoteAddress());
  }
 else {
    ctx.sendUpstream(e);
  }
}