public void handleLoadError(String classname, Throwable throwable) {
            LoggerFactory.getLogger(classname).warn("Unable to load {}", classname, throwable);
        }
Strategy that logs warnings of all problems using a {@link org.slf4j.Logger}
created using the given class name.
tika-core/src/main/java/org/apache/tika/config/LoadErrorHandler.java