6.4. Use the Default Cache

Procedure 6.2. Add and Remove Data from the Cache

1. Add an entry, replacing key and value with the desired key and value:

   cache.put("key", "value");
   

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2. Confirm that the entry is present in the cache:

   assertEquals(1, cache.size());
   assertTrue(cache.containsKey("key"));
   

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3. Remove the entry from the cache:

   Object v = cache.remove("key");
   

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4. Confirm that the entry is no longer present in the cache:

   assertEquals("value", v);
   

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