diff --git a/Network.iml b/Network.iml
index a769497f..0457eea8 100644
--- a/Network.iml
+++ b/Network.iml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8" inherit-compiler-output="true">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_6" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/test" isTestSource="true" />
diff --git a/src/dorkbox/network/connection/ConnectionImpl.java b/src/dorkbox/network/connection/ConnectionImpl.java
index 8e357fd7..d74724c4 100644
--- a/src/dorkbox/network/connection/ConnectionImpl.java
+++ b/src/dorkbox/network/connection/ConnectionImpl.java
@@ -110,7 +110,7 @@ class ConnectionImpl extends ChannelInboundHandlerAdapter implements ICryptoConn
     //
     private final RmiBridge rmiBridge;
     private final Map<Integer, RemoteObject> proxyIdCache = new WeakHashMap<Integer, RemoteObject>(8);
-    private final IntMap<RemoteObjectCallback> rmiRegistrationCallbacks = new IntMap<>();
+    private final IntMap<RemoteObjectCallback> rmiRegistrationCallbacks = new IntMap<RemoteObjectCallback>();
     private int rmiRegistrationID = 0; // protected by synchronized (rmiRegistrationCallbacks)
 
     /**
diff --git a/test/dorkbox/network/rmi/RmiGlobalTest.java b/test/dorkbox/network/rmi/RmiGlobalTest.java
index 9bdaa748..e19c725f 100644
--- a/test/dorkbox/network/rmi/RmiGlobalTest.java
+++ b/test/dorkbox/network/rmi/RmiGlobalTest.java
@@ -290,7 +290,7 @@ class RmiGlobalTest extends BaseTest {
               .add(new Listener.OnMessageReceived<Connection, MessageWithTestCow>() {
                   @Override
                   public
-                  void received(Connection connection, MessageWithTestCow m) {
+                  void received(final Connection connection, MessageWithTestCow m) {
                       System.err.println("Received finish signal for test for: Server -> Client");
 
                       TestCow object = m.testCow;
diff --git a/test/dorkbox/network/rmi/RmiTest.java b/test/dorkbox/network/rmi/RmiTest.java
index dbc3fe9f..1dd32f91 100644
--- a/test/dorkbox/network/rmi/RmiTest.java
+++ b/test/dorkbox/network/rmi/RmiTest.java
@@ -204,7 +204,7 @@ class RmiTest extends BaseTest {
         listeners.add(new Listener.OnMessageReceived<Connection, MessageWithTestCow>() {
             @Override
             public
-            void received(Connection connection, MessageWithTestCow m) {
+            void received(final Connection connection, MessageWithTestCow m) {
                 System.err.println("Received finish signal for test for: Client -> Server");
 
                 TestCow object = m.testCow;