code: public void setMinFreeDiskSpace(String value) {
  		if (value == null) {
  			LogLog.warn("Null min free disk space supplied for appender [" + this.getName() + "], defaulting to " + this.getProperties().getMinFreeDiscSpace());
  			return;
  		}
  		value = value.trim();
  		if ("".equals(value)) {
  			LogLog.warn("Empty min free disk space supplied for appender [" + this.getName() + "], defaulting to " + this.getProperties().getMinFreeDiscSpace());
  			return;
  		}
  		final long defaultMinFreeDiskSpace = this.getProperties().getMinFreeDiscSpace();
  		final long minFreeDiskSpace = OptionConverter.toFileSize(value, defaultMinFreeDiskSpace);
  		this.getProperties().setMinFreeDiscSpace(minFreeDiskSpace);
  	}
docs: <b>Warning</b> Use of this property requires Java 6.
  
  @param value