private boolean hasPrimitiveClass(Class<?> clazz) {
        return clazz == Byte.class
            ||  clazz == Short.class
            ||  clazz == Integer.class
            ||  clazz == Long.class
            ||  clazz == Float.class
            ||  clazz == Double.class
            ||  clazz == Character.class
            ||  clazz == Boolean.class;
    }
@author  Emil Forslund
@author  Per Minborg
@since   3.0.0
runtime-parent/runtime-core/src/main/java/com/speedment/runtime/core/abstracts/AbstractDbmsMetadataHandler.java