dubbo-common/src/main/resources/META-INF/dubbo/internal/com.alibaba.dubbo.common.threadpool.ThreadPool

fixed=com.alibaba.dubbo.common.threadpool.support.fixed.FixedThreadPool
cached=com.alibaba.dubbo.common.threadpool.support.cached.CachedThreadPool
limited=com.alibaba.dubbo.common.threadpool.support.limited.LimitedThreadPool
eager=com.alibaba.dubbo.common.threadpool.support.eager.EagerThreadPool