diff --git a/runtime/src/main/java/org/capnproto/RpcSystem.java b/runtime/src/main/java/org/capnproto/RpcSystem.java
index 73cc7d3..9ab49b1 100644
--- a/runtime/src/main/java/org/capnproto/RpcSystem.java
+++ b/runtime/src/main/java/org/capnproto/RpcSystem.java
@@ -23,6 +23,11 @@ public class RpcSystem<VatId extends StructReader> {
         return this.network;
     }
 
+    public RpcSystem(VatNetwork<VatId> network,
+                     Capability.Server bootstrapInterface) {
+        this(network, new Capability.Client(bootstrapInterface));
+    }
+
     public RpcSystem(VatNetwork<VatId> network,
                      Capability.Client bootstrapInterface) {
         this(network, new BootstrapFactory<VatId>() {
@@ -78,7 +83,7 @@ public class RpcSystem<VatId extends StructReader> {
     }
 
     private CompletableFuture<java.lang.Void> doAcceptLoop() {
-        return this.getNetwork().baseAccept().thenCompose(connection -> {
+        return this.network.baseAccept().thenCompose(connection -> {
             this.accept(connection);
             return this.doAcceptLoop();
         });
diff --git a/runtime/src/main/java/org/capnproto/TwoPartyClient.java b/runtime/src/main/java/org/capnproto/TwoPartyClient.java
index 018299d..19eb970 100644
--- a/runtime/src/main/java/org/capnproto/TwoPartyClient.java
+++ b/runtime/src/main/java/org/capnproto/TwoPartyClient.java
@@ -6,7 +6,7 @@ import java.util.concurrent.CompletableFuture;
 public class TwoPartyClient {
 
     private final TwoPartyVatNetwork network;
-    private final TwoPartyRpcSystem rpcSystem;
+    private final RpcSystem<RpcTwoPartyProtocol.VatId.Reader> rpcSystem;
 
     public TwoPartyClient(AsynchronousSocketChannel channel) {
         this(channel, null);
@@ -20,7 +20,7 @@ public class TwoPartyClient {
                           Capability.Client bootstrapInterface,
                           RpcTwoPartyProtocol.Side side) {
         this.network = new TwoPartyVatNetwork(channel, side);
-        this.rpcSystem = new TwoPartyRpcSystem(network, bootstrapInterface);
+        this.rpcSystem = new RpcSystem<RpcTwoPartyProtocol.VatId.Reader>(network, bootstrapInterface);
     }
 
     public Capability.Client bootstrap() {
diff --git a/runtime/src/main/java/org/capnproto/TwoPartyRpcSystem.java b/runtime/src/main/java/org/capnproto/TwoPartyRpcSystem.java
deleted file mode 100644
index 66e7efe..0000000
--- a/runtime/src/main/java/org/capnproto/TwoPartyRpcSystem.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package org.capnproto;
-
-public class TwoPartyRpcSystem
-        extends RpcSystem<RpcTwoPartyProtocol.VatId.Reader> {
-
-    private TwoPartyVatNetwork network;
-
-    public TwoPartyRpcSystem(TwoPartyVatNetwork network, Capability.Client bootstrapInterface) {
-        super(network, bootstrapInterface);
-        this.network = network;
-    }
-
-    public TwoPartyRpcSystem(TwoPartyVatNetwork network, Capability.Server bootstrapInterface) {
-        super(network, new Capability.Client(bootstrapInterface));
-        this.network = network;
-    }
-
-    @Override
-    public VatNetwork<RpcTwoPartyProtocol.VatId.Reader> getNetwork() {
-        return this.network;
-    }
-}
diff --git a/runtime/src/main/java/org/capnproto/TwoPartyServer.java b/runtime/src/main/java/org/capnproto/TwoPartyServer.java
index 1aac7a5..1c8840f 100644
--- a/runtime/src/main/java/org/capnproto/TwoPartyServer.java
+++ b/runtime/src/main/java/org/capnproto/TwoPartyServer.java
@@ -13,13 +13,13 @@ public class TwoPartyServer {
     private class AcceptedConnection {
         final AsynchronousSocketChannel channel;
         final TwoPartyVatNetwork network;
-        final TwoPartyRpcSystem rpcSystem;
+        final RpcSystem<RpcTwoPartyProtocol.VatId.Reader> rpcSystem;
         private final CompletableFuture<?> messageLoop;
 
         AcceptedConnection(Capability.Client bootstrapInterface, AsynchronousSocketChannel channel) {
             this.channel = channel;
             this.network = new TwoPartyVatNetwork(channel, RpcTwoPartyProtocol.Side.SERVER);
-            this.rpcSystem = new TwoPartyRpcSystem(network, bootstrapInterface);
+            this.rpcSystem = new RpcSystem<>(network, bootstrapInterface);
             this.messageLoop = this.rpcSystem.getMessageLoop().exceptionally(exc -> {
                 connections.remove(this);
                 return null;
diff --git a/runtime/src/main/java/org/capnproto/TwoPartyVatNetwork.java b/runtime/src/main/java/org/capnproto/TwoPartyVatNetwork.java
index 3e48db7..68a425b 100644
--- a/runtime/src/main/java/org/capnproto/TwoPartyVatNetwork.java
+++ b/runtime/src/main/java/org/capnproto/TwoPartyVatNetwork.java
@@ -43,12 +43,12 @@ public class TwoPartyVatNetwork
         this.tap = tap;
     }
 
-    public Connection asConnection() {
+    public Connection<RpcTwoPartyProtocol.VatId.Reader> asConnection() {
         return this;
     }
 
     @Override
-    public Connection connect(RpcTwoPartyProtocol.VatId.Reader vatId) {
+    public Connection<RpcTwoPartyProtocol.VatId.Reader> connect(RpcTwoPartyProtocol.VatId.Reader vatId) {
         return vatId.getSide() != side
                 ? this.asConnection()
                 : null;
@@ -60,7 +60,7 @@ public class TwoPartyVatNetwork
             return CompletableFuture.completedFuture(this.asConnection());
         }
         else {
-            // never completes
+            // never /home/vaci/g/capnproto-java/compilercompletes
             return new CompletableFuture<>();
         }
     }
diff --git a/runtime/src/test/java/org/capnproto/TwoPartyTest.java b/runtime/src/test/java/org/capnproto/TwoPartyTest.java
index 12ea1a6..a54af25 100644
--- a/runtime/src/test/java/org/capnproto/TwoPartyTest.java
+++ b/runtime/src/test/java/org/capnproto/TwoPartyTest.java
@@ -105,7 +105,7 @@ public class TwoPartyTest {
 
     @Test
     public void testNullCap() throws ExecutionException, InterruptedException {
-        var server = new TwoPartyRpcSystem(this.serverNetwork, new Capability.Client());
+        var server = new RpcSystem<>(this.serverNetwork, new Capability.Client());
         var cap = this.client.bootstrap();
         var resolved = cap.whenResolved().toCompletableFuture();
         resolved.get();
@@ -113,7 +113,7 @@ public class TwoPartyTest {
 
     @Test
     public void testBasic() throws ExecutionException, InterruptedException, IOException {
-        var server = new TwoPartyRpcSystem(this.serverNetwork, new TestCap0Impl());
+        var server = new RpcSystem<>(this.serverNetwork, new TestCap0Impl());
 
         var demo = new Demo.TestCap0.Client(this.client.bootstrap());
         var request = demo.testMethod0Request();
@@ -130,7 +130,7 @@ public class TwoPartyTest {
 
     @Test
     public void testBasicCleanup() throws ExecutionException, InterruptedException, TimeoutException {
-        var server = new TwoPartyRpcSystem(this.serverNetwork, new TestCap0Impl());
+        var server = new RpcSystem<>(this.serverNetwork, new TestCap0Impl());
         var demo = new Demo.TestCap0.Client(this.client.bootstrap());
         var request = demo.testMethod0Request();
         var params = request.getParams();
@@ -146,7 +146,7 @@ public class TwoPartyTest {
 
     @Test
     public void testShutdown() throws InterruptedException, IOException {
-        var server = new TwoPartyRpcSystem(this.serverNetwork, new TestCap0Impl());
+        var server = new RpcSystem<>(this.serverNetwork, new TestCap0Impl());
         var demo = new Demo.TestCap0.Client(this.client.bootstrap());
         this.clientSocket.shutdownOutput();
         serverThread.join();
@@ -163,7 +163,7 @@ public class TwoPartyTest {
             }
         };
 
-        var rpcSystem = new TwoPartyRpcSystem(this.serverNetwork, impl);
+        var rpcSystem = new RpcSystem<>(this.serverNetwork, impl);
 
         var demoClient = new Demo.TestCap0.Client(this.client.bootstrap());
         {
@@ -188,7 +188,7 @@ public class TwoPartyTest {
     public void testReturnCap() throws ExecutionException, InterruptedException {
         // send a capability back from the server to the client
         var capServer = new TestCap0Impl();
-        var rpcSystem = new TwoPartyRpcSystem(this.serverNetwork, capServer);
+        var rpcSystem = new RpcSystem<>(this.serverNetwork, capServer);
         var demoClient = new Demo.TestCap0.Client(this.client.bootstrap());
         var request = demoClient.testMethod1Request();
         var response = request.send();