diff --git a/src/main/cpp/org_zwave4j_Manager.cpp b/src/main/cpp/org_zwave4j_Manager.cpp
index 8c1e5fb..6827513 100644
--- a/src/main/cpp/org_zwave4j_Manager.cpp
+++ b/src/main/cpp/org_zwave4j_Manager.cpp
@@ -1,5 +1,6 @@
 #include <Manager.h>
 #include <Notification.h>
+#include <Group.h>
 #include <org_zwave4j_Manager.h>
 #include "init.h"
 
@@ -2033,6 +2034,41 @@ JNIEXPORT jlong JNICALL Java_org_zwave4j_Manager_getAssociations
 	return associationsAmount;
 }
 
+/*
+ * Class:     org_zwave4j_Manager
+ * Method:    getAssociationsWithInstance
+ * Signature: (JSSLjava/util/concurrent/atomic/AtomicReference;)J
+ */
+JNIEXPORT jlong JNICALL Java_org_zwave4j_Manager_getAssociationsWithInstance
+  (JNIEnv * env, jobject object, jlong homeId, jshort nodeId, jshort groupIdx, jobject associations)
+{
+    OpenZWave::InstanceAssociation * ozwAssociations;
+
+    jlong associationsAmount = getJlong(OpenZWave::Manager::Get()->GetAssociations(getUint32(homeId), getUint8(nodeId), getUint8(groupIdx), &ozwAssociations));
+
+    jclass associationClass = findClass(env, "org/zwave4j/InstanceAssociation");
+
+    jobjectArray associationsArray = env->NewObjectArray(getJsize(associationsAmount), associationClass, NULL);
+	for (uint32 i = 0; i < associationsAmount; ++i)
+	{
+	    jobject association = env->NewObject(associationClass,
+	  	env->GetMethodID(associationClass, "<init>", "(SS)V"),
+		getJshort(ozwAssociations[i].m_nodeId),
+		getJshort(ozwAssociations[i].m_instance));
+	    env->SetObjectArrayElement(associationsArray, getJsize(i), association);
+	}
+
+	delete [] ozwAssociations;
+
+	env->CallVoidMethod(
+		associations,
+		env->GetMethodID(findClass(env, "java/util/concurrent/atomic/AtomicReference"), "set", "(Ljava/lang/Object;)V"),
+		associationsArray
+	);
+
+	return associationsAmount;
+}
+
 /*
  * Class:     org_zwave4j_Manager
  * Method:    getMaxAssociations
@@ -2058,23 +2094,23 @@ JNIEXPORT jstring JNICALL Java_org_zwave4j_Manager_getGroupLabel
 /*
  * Class:     org_zwave4j_Manager
  * Method:    addAssociation
- * Signature: (JSSS)V
+ * Signature: (JSSSS)V
  */
 JNIEXPORT void JNICALL Java_org_zwave4j_Manager_addAssociation
-  (JNIEnv * env, jobject object, jlong homeId, jshort nodeId, jshort groupIdx, jshort targetNodeId)
+  (JNIEnv * env, jobject object, jlong homeId, jshort nodeId, jshort groupIdx, jshort targetNodeId, jshort instance)
 {
-    OpenZWave::Manager::Get()->AddAssociation(getUint32(homeId), getUint8(nodeId), getUint8(groupIdx), getUint8(targetNodeId));
+    OpenZWave::Manager::Get()->AddAssociation(getUint32(homeId), getUint8(nodeId), getUint8(groupIdx), getUint8(targetNodeId), getUint8(instance));
 }
 
 /*
  * Class:     org_zwave4j_Manager
  * Method:    removeAssociation
- * Signature: (JSSS)V
+ * Signature: (JSSSS)V
  */
 JNIEXPORT void JNICALL Java_org_zwave4j_Manager_removeAssociation
-  (JNIEnv * env, jobject object, jlong homeId, jshort nodeId, jshort groupIdx, jshort targetNodeId)
+  (JNIEnv * env, jobject object, jlong homeId, jshort nodeId, jshort groupIdx, jshort targetNodeId, jshort instance)
 {
-    OpenZWave::Manager::Get()->RemoveAssociation(getUint32(homeId), getUint8(nodeId), getUint8(groupIdx), getUint8(targetNodeId));
+    OpenZWave::Manager::Get()->RemoveAssociation(getUint32(homeId), getUint8(nodeId), getUint8(groupIdx), getUint8(targetNodeId), getUint8(instance));
 }
 
 /*
diff --git a/src/main/java/org/zwave4j/InstanceAssociation.java b/src/main/java/org/zwave4j/InstanceAssociation.java
new file mode 100644
index 0000000..cdb3f94
--- /dev/null
+++ b/src/main/java/org/zwave4j/InstanceAssociation.java
@@ -0,0 +1,25 @@
+package org.zwave4j;
+
+import java.io.Serializable;
+
+/**
+ * @author TEK
+ */
+public class InstanceAssociation implements Serializable {
+
+    private short nodeId;
+    private short instance;
+
+    public InstanceAssociation(short nodeId, short instance) {
+        this.nodeId = nodeId;
+        this.instance = instance;
+    }
+
+    public short getNodeId() {
+        return nodeId;
+    }
+
+    public long getInstance() {
+        return instance;
+    }
+}
diff --git a/src/main/java/org/zwave4j/Manager.java b/src/main/java/org/zwave4j/Manager.java
index be44b18..42b86fe 100644
--- a/src/main/java/org/zwave4j/Manager.java
+++ b/src/main/java/org/zwave4j/Manager.java
@@ -263,14 +263,25 @@ public static void destroy() {
 
     public native long getAssociations(long homeId, short nodeId, short groupIdx, AtomicReference<short[]> associations);
 
+    public native long getAssociationsWithInstance(long homeId, short nodeId, short groupIdx, AtomicReference<InstanceAssociation[]> associations);
+
     public native short getMaxAssociations(long homeId, short nodeId, short groupIdx);
 
     public native String getGroupLabel(long homeId, short nodeId, short groupIdx);
 
-    public native void addAssociation(long homeId, short nodeId, short groupIdx, short targetNodeId);
+    public native void addAssociation(long homeId, short nodeId, short groupIdx, short targetNodeId, short instance);
+
+    public void addAssociation(long homeId, short nodeId, short groupIdx, short targetNodeId)
+    {
+	addAssociation(homeId, nodeId, groupIdx, targetNodeId, (short)0);
+    }
 
-    public native void removeAssociation(long homeId, short nodeId, short groupIdx, short targetNodeId);
+    public native void removeAssociation(long homeId, short nodeId, short groupIdx, short targetNodeId, short instance);
 
+    public void removeAssociation(long homeId, short nodeId, short groupIdx, short targetNodeId)
+    {
+	removeAssociation(homeId, nodeId, groupIdx, targetNodeId, (short)0);
+    }
 
     //Notifications
     public native void addWatcher(NotificationWatcher notificationWatcher, Object context);
diff --git a/src/main/java/org/zwave4j/ValueId.java b/src/main/java/org/zwave4j/ValueId.java
index f4cfaee..f72ca62 100644
--- a/src/main/java/org/zwave4j/ValueId.java
+++ b/src/main/java/org/zwave4j/ValueId.java
@@ -1,9 +1,11 @@
 package org.zwave4j;
 
+import java.io.Serializable;
+
 /**
  * @author zagumennikov
  */
-public class ValueId {
+public class ValueId implements Serializable {
 
     private long homeId;
     private short nodeId;