CamelContext will by default cache the last 1000 used endpoints (based on a LRUCache).
Available as of Camel 2.8
You can configure the default maximum cache size by setting the Exchange.MAXIMUM_ENDPOINT_CACHE_SIZE property on CamelContext.
You need to configure this before CamelContext is started.
And in Spring XML its done as:
At runtime you can see the EndpointRegistry in JMX as they are listed in the services category.