core/src/in/srain/cube/diskcache/CacheEntry.java
public String getString() throws IOException {
        InputStream in = getInputStream();
        return in != null ? inputStreamToString(in) : null;
    }
public String getString() throws IOException {
        InputStream in = getInputStream();
        return in != null ? inputStreamToString(in) : null;
    }
Returns the last committed value as a string, or null if no value
has been committed.