Memoryleak using configuration file

Hallo,

I am using log4cplus with a configuration file.
At the entry-point of my program I write:

PropertyConfigurator::doConfigure("log4cplus.properties");

In every cpp-file I define a static logger like this:

#include <log4cplus/logger.h>
#include <log4cplus/fileappender.h>
#include <log4cplus/loglevel.h>
#include <log4cplus/configurator.h>

using namespace log4cplus;
using namespace log4cplus::helper

Logger static logger = Logger::getInstance("myfilename.cpp");

And then I use the logging mechanisms:

LOG4CPLUS_DEBUG(logger, "My Message");

When finishing my Program, the Memory leak detector points to a lot of memory leaks. Most of them are coused by the line at the entry-point of my Programm:

PropertyConfigurator::doConfigure("log4cplus.properties");

Also some are caused by the Line:

Logger static logger = Logger::getInstance("myfilename.cpp");

Is there a bug, or do I use log4cplus in a wrong way?

Thanks, Anton