#010533: ezcCacheManager::getCache throws unfriendly fatal error

http://ez.no/doc/components/view/trunk/(file)/introduction_Cache.html#a-simple-example
With the default example, the steps for using cache are:
1) ezcCacheManager::createCache( 'simple', ...);
2) $cache = ezcCacheManager::getCache( 'simple' );

However, the Cache workflow is overly rigid and does not properly account for cases where is is unknown if a cache has already been initialized. Imagine a situation where a series of functions all used and update the same cache. The workflow would look like this:
1) if (!ezcCacheManager::cacheExists('simple')) ezcCacheManager::createCache( 'simple', ...);
2) $cache = ezcCacheManager::getCache( 'simple' );

Of course, the cacheExists function does not currently exist. The desired functionality could currently done using a try...catch but this is not ideal. It would look something like this:
1) try {$cache = ezcCacheManager::getCache( 'simple' );} catch ( Exception $e ) {ezcCacheManager::createCache( 'simple', ...);$cache = ezcCacheManager::getCache( 'simple' );}

Operating System: Debian Linux
PHP Version: 5.2.1

$cache = ezcCacheManager::getCache( 'simple' );