How to run multiple T(Threaded)Server?

I want to run two TThreadedPoolServers in the same program to handle different kinds of requests. However, the TThreadedPoolServer that starts last will always refuse the connection if a client tries to connect to it. I've already tried to run the servers in different threads, but to no avail.

Server 1:

public class RERunner extends Thread {
    private static ReceiveEndpoint receiveEndpoint;
    private static ReceiveEndpointInterface.Processor<ReceiveEndpoint> masterProcessor;

    public RERunner() throws TTransportException {
        receiveEndpoint = new ReceiveEndpoint();
        masterProcessor = new ReceiveEndpointInterface.Processor<>(receiveEndpoint);

        TServerTransport transport = new TServerSocket(Elements.MASTER_SERVER_RC_ENDPOINT_PORT);
        TSimpleServer server = new TSimpleServer(new TSimpleServer.Args(transport).processor(masterProcessor));
        server.serve();
    }
}

Server 2:

public class RETableRunner extends Thread {
    private static ReceiveEndpointTable receiveEndpointTable;
    private static ReceiveEndpointTableInterface.Processor<ReceiveEndpointTable> masterProcessorTable;

    public RETableRunner() throws TTransportException {
        receiveEndpointTable = new ReceiveEndpointTable();
        masterProcessorTable = new ReceiveEndpointTableInterface.Processor<>(receiveEndpointTable);

        TServerTransport transportAll = new TServerSocket(Elements.MASTER_SERVER_RC_ENDPOINT_TABLE_PORT);
        TThreadPoolServer serverAll = new TThreadPoolServer(new TThreadPoolServer.Args(transportAll).processor(masterProcessorTable));
        serverAll.serve();
    }
}

And the Exception thrown clientside:

org.apache.thrift.transport.TTransportException: java.net.ConnectException: Connection refused: connect
    at org.apache.thrift.transport.TSocket.open(TSocket.java:226)
    at DataPropagator.acquireEndpointTable(DataPropagator.java:27)
    at DataPropagator.run(DataPropagator.java:98)
Caused by: java.net.ConnectException: Connection refused: connect
    at java.base/java.net.PlainSocketImpl.connect0(Native Method)
    at java.base/java.net.PlainSocketImpl.socketConnect(PlainSocketImpl.java:101)
    at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399)
    at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242)
    at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224)
    at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403)
    at java.base/java.net.Socket.connect(Socket.java:591)  
    at org.apache.thrift.transport.TSocket.open(TSocket.java:221)
    ... 2 more

The solution doesn't have to contain two TThreadedPoolServers, but if it doesn't, I'll need help starting them.