Question

Is there something wrong with the way I’m accessing the static field ‘cache’ from the config loader class? FYI, CacheEngine is an interface that implements a cache client for memcached.

public class Test {
     ...
     getCache(){
       ...
       try{
        cacheData =  ConfigLoader.cache.get(key); // Accessing the static 'cache' memeber returns Null Pointer Exception  
        ...
       }
     }
}

//ConfigLoader Class
public class ConfigLoader{
    public static CacheEngine cache;
    ...
}

Answer 1

It’s bad design, but the way you access it, is correct. Your problem is, that cache isn’t initialized. You need to do so somewhere:

public static CacheEngine cache = new CacheEngine(...);