public static SortedSet<Integer> findAvailableTcpPorts(int numRequested, int minPort, int maxPort) {
        return SocketType.TCP.findAvailablePorts(numRequested, minPort, maxPort);
    }
Find the requested number of available TCP ports, each randomly selected
from the range [{@code minPort}, {@code maxPort}].
@param numRequested the number of available ports to find
@param minPort the minimum port number
@param maxPort the maximum port number
@return a sorted set of available TCP port numbers
@throws IllegalStateException if the requested number of available ports could not be found
agent-module/plugins-test-module/testcase/src/main/java/com/navercorp/pinpoint/testcase/util/SocketUtils.java