public UserThreadPool setAllowCoreThreadTimeOut(boolean allowCoreThreadTimeOut) {
        this.allowCoreThreadTimeOut = allowCoreThreadTimeOut;
        return this;
    }
Sets allow core thread time out.

@param allowCoreThreadTimeOut the allow core thread time out
@return the allow core thread time out
core/api/src/main/java/com/alipay/sofa/rpc/server/UserThreadPool.java