private boolean readPropertyBool(String key) {
        String value = properties.getProperty(key);
        if (StringUtils.isEmpty(value)) {
            logger.info("-D{} found", key);
            return true;
        }
        boolean boolValue = Boolean.parseBoolean(value);
        logger.info("-D{} found : {}, resolved to {}", key, value, boolValue);
        return boolValue;
    }
Returns <tt>true</tt> if {@value #CONTAINER_PROPERTY_KEY} property exists and has no value or is <tt>true</tt>.

@return <tt>true</tt> if {@value #CONTAINER_PROPERTY_KEY} property exists and has no value or is <tt>true</tt>.
agent-module/profiler/src/main/java/com/navercorp/pinpoint/profiler/util/ContainerResolver.java