I’m writing a daemon for getting servers stats for some game. In compilation I’ve get a message: cannot access org.apache.commons.pool2.impl.GenericObjectPoolConfig class file for org.apache.commons.pool2.impl.GenericObjectPoolConfig not found At this line of code: Answer Add the required libraries to the classpath for commons-pool v2.0 The Apache Commons Pool open source software library provides an object-pooling API and a number of object pool