diff --git a/java/jni/ZT_jnicache.cpp b/java/jni/ZT_jnicache.cpp
index a29bd8e74..f42ac7b29 100644
--- a/java/jni/ZT_jnicache.cpp
+++ b/java/jni/ZT_jnicache.cpp
@@ -106,6 +106,7 @@ jmethodID Event_fromInt_method;
 jmethodID InetAddress_getByAddress_method;
 jmethodID PeerRole_fromInt_method;
 jmethodID ResultCode_fromInt_method;
+jmethodID VirtualNetworkConfigOperation_fromInt_method;
 
 //
 // Instance fields
@@ -161,10 +162,6 @@ jfieldID VirtualNetworkRoute_via_field;
 // Static fields
 //
 
-jfieldID VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_CONFIG_UPDATE_field;
-jfieldID VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY_field;
-jfieldID VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_DOWN_field;
-jfieldID VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_UP_field;
 jfieldID VirtualNetworkStatus_NETWORK_STATUS_ACCESS_DENIED_field;
 jfieldID VirtualNetworkStatus_NETWORK_STATUS_AUTHENTICATION_REQUIRED_field;
 jfieldID VirtualNetworkStatus_NETWORK_STATUS_CLIENT_TOO_OLD_field;
@@ -254,6 +251,7 @@ void setupJNICache(JavaVM *vm) {
     EXCEPTIONANDNULLCHECK(InetAddress_getByAddress_method = env->GetStaticMethodID(InetAddress_class, "getByAddress", "([B)Ljava/net/InetAddress;"));
     EXCEPTIONANDNULLCHECK(PeerRole_fromInt_method = env->GetStaticMethodID(PeerRole_class, "fromInt", "(I)Lcom/zerotier/sdk/PeerRole;"));
     EXCEPTIONANDNULLCHECK(ResultCode_fromInt_method = env->GetStaticMethodID(ResultCode_class, "fromInt", "(I)Lcom/zerotier/sdk/ResultCode;"));
+    EXCEPTIONANDNULLCHECK(VirtualNetworkConfigOperation_fromInt_method = env->GetStaticMethodID(VirtualNetworkConfigOperation_class, "fromInt", "(I)Lcom/zerotier/sdk/VirtualNetworkConfigOperation;"));
 
     //
     // Instance fields
@@ -309,10 +307,6 @@ void setupJNICache(JavaVM *vm) {
     // Static fields
     //
 
-    EXCEPTIONANDNULLCHECK(VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_CONFIG_UPDATE_field = env->GetStaticFieldID(VirtualNetworkConfigOperation_class, "VIRTUAL_NETWORK_CONFIG_OPERATION_CONFIG_UPDATE", "Lcom/zerotier/sdk/VirtualNetworkConfigOperation;"));
-    EXCEPTIONANDNULLCHECK(VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY_field = env->GetStaticFieldID(VirtualNetworkConfigOperation_class, "VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY", "Lcom/zerotier/sdk/VirtualNetworkConfigOperation;"));
-    EXCEPTIONANDNULLCHECK(VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_DOWN_field = env->GetStaticFieldID(VirtualNetworkConfigOperation_class, "VIRTUAL_NETWORK_CONFIG_OPERATION_DOWN", "Lcom/zerotier/sdk/VirtualNetworkConfigOperation;"));
-    EXCEPTIONANDNULLCHECK(VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_UP_field = env->GetStaticFieldID(VirtualNetworkConfigOperation_class, "VIRTUAL_NETWORK_CONFIG_OPERATION_UP", "Lcom/zerotier/sdk/VirtualNetworkConfigOperation;"));
     EXCEPTIONANDNULLCHECK(VirtualNetworkStatus_NETWORK_STATUS_ACCESS_DENIED_field = env->GetStaticFieldID(VirtualNetworkStatus_class, "NETWORK_STATUS_ACCESS_DENIED", "Lcom/zerotier/sdk/VirtualNetworkStatus;"));
     EXCEPTIONANDNULLCHECK(VirtualNetworkStatus_NETWORK_STATUS_AUTHENTICATION_REQUIRED_field = env->GetStaticFieldID(VirtualNetworkStatus_class, "NETWORK_STATUS_AUTHENTICATION_REQUIRED", "Lcom/zerotier/sdk/VirtualNetworkStatus;"));
     EXCEPTIONANDNULLCHECK(VirtualNetworkStatus_NETWORK_STATUS_CLIENT_TOO_OLD_field = env->GetStaticFieldID(VirtualNetworkStatus_class, "NETWORK_STATUS_CLIENT_TOO_OLD", "Lcom/zerotier/sdk/VirtualNetworkStatus;"));
diff --git a/java/jni/ZT_jnicache.h b/java/jni/ZT_jnicache.h
index ffee04d93..61865403a 100644
--- a/java/jni/ZT_jnicache.h
+++ b/java/jni/ZT_jnicache.h
@@ -75,6 +75,7 @@ extern jmethodID Event_fromInt_method;
 extern jmethodID InetAddress_getByAddress_method;
 extern jmethodID PeerRole_fromInt_method;
 extern jmethodID ResultCode_fromInt_method;
+extern jmethodID VirtualNetworkConfigOperation_fromInt_method;
 
 //
 // Instance fields
@@ -130,10 +131,6 @@ extern jfieldID VirtualNetworkRoute_via_field;
 // Static fields
 //
 
-extern jfieldID VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_CONFIG_UPDATE_field;
-extern jfieldID VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY_field;
-extern jfieldID VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_DOWN_field;
-extern jfieldID VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_UP_field;
 extern jfieldID VirtualNetworkStatus_NETWORK_STATUS_ACCESS_DENIED_field;
 extern jfieldID VirtualNetworkStatus_NETWORK_STATUS_AUTHENTICATION_REQUIRED_field;
 extern jfieldID VirtualNetworkStatus_NETWORK_STATUS_CLIENT_TOO_OLD_field;
diff --git a/java/jni/ZT_jniutils.cpp b/java/jni/ZT_jniutils.cpp
index bda1014fc..5a69116d4 100644
--- a/java/jni/ZT_jniutils.cpp
+++ b/java/jni/ZT_jniutils.cpp
@@ -120,26 +120,12 @@ jobject createVirtualNetworkType(JNIEnv *env, ZT_VirtualNetworkType type)
 
 jobject createVirtualNetworkConfigOperation(JNIEnv *env, ZT_VirtualNetworkConfigOperation op)
 {
-    jobject vnetConfigOpObject = NULL;
-
-    jfieldID field;
-    switch(op)
-    {
-    case ZT_VIRTUAL_NETWORK_CONFIG_OPERATION_UP:
-        field = VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_UP_field;
-        break;
-    case ZT_VIRTUAL_NETWORK_CONFIG_OPERATION_CONFIG_UPDATE:
-        field = VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_CONFIG_UPDATE_field;
-        break;
-    case ZT_VIRTUAL_NETWORK_CONFIG_OPERATION_DOWN:
-        field = VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_DOWN_field;
-        break;
-    case ZT_VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY:
-        field = VirtualNetworkConfigOperation_VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY_field;
-        break;
+    jobject vnetConfigOpObject = env->CallStaticObjectMethod(VirtualNetworkConfigOperation_class, VirtualNetworkConfigOperation_fromInt_method, op);
+    if (env->ExceptionCheck() || vnetConfigOpObject == NULL) {
+        LOGE("Error creating VirtualNetworkConfigOperation object");
+        return NULL;
     }
 
-    vnetConfigOpObject = env->GetStaticObjectField(VirtualNetworkConfigOperation_class, field);
     return vnetConfigOpObject;
 }
 
diff --git a/java/jni/com_zerotierone_sdk_Node.cpp b/java/jni/com_zerotierone_sdk_Node.cpp
index 92cc896ac..e9686c302 100644
--- a/java/jni/com_zerotierone_sdk_Node.cpp
+++ b/java/jni/com_zerotierone_sdk_Node.cpp
@@ -114,9 +114,8 @@ namespace {
         }
 
         jobject operationObject = createVirtualNetworkConfigOperation(env, operation);
-        if(operationObject == NULL)
+        if(env->ExceptionCheck() || operationObject == NULL)
         {
-            LOGE("Error creating VirtualNetworkConfigOperation object");
             return -101;
         }
 
diff --git a/java/src/com/zerotier/sdk/VirtualNetworkConfigOperation.java b/java/src/com/zerotier/sdk/VirtualNetworkConfigOperation.java
index 6abf2755f..93a4c5d9d 100644
--- a/java/src/com/zerotier/sdk/VirtualNetworkConfigOperation.java
+++ b/java/src/com/zerotier/sdk/VirtualNetworkConfigOperation.java
@@ -27,25 +27,52 @@
 
 package com.zerotier.sdk;
 
+/**
+ * Virtual network configuration update type
+ *
+ * Defined in ZeroTierOne.h as ZT_VirtualNetworkConfigOperation
+ */
 public enum VirtualNetworkConfigOperation {
 
     /**
      * Network is coming up (either for the first time or after service restart)
      */
-    VIRTUAL_NETWORK_CONFIG_OPERATION_UP,
+    VIRTUAL_NETWORK_CONFIG_OPERATION_UP(0),
 
     /**
      * Network configuration has been updated
      */
-    VIRTUAL_NETWORK_CONFIG_OPERATION_CONFIG_UPDATE,
+    VIRTUAL_NETWORK_CONFIG_OPERATION_CONFIG_UPDATE(1),
 
     /**
      * Network is going down (not permanently)
      */
-    VIRTUAL_NETWORK_CONFIG_OPERATION_DOWN,
+    VIRTUAL_NETWORK_CONFIG_OPERATION_DOWN(2),
 
     /**
      * Network is going down permanently (leave/delete)
      */
-    VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY
+    VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY(3);
+
+    @SuppressWarnings({"FieldCanBeLocal", "unused"})
+    private final int id;
+
+    VirtualNetworkConfigOperation(int id) {
+        this.id = id;
+    }
+
+    public static VirtualNetworkConfigOperation fromInt(int id) {
+        switch (id) {
+            case 0:
+                return VIRTUAL_NETWORK_CONFIG_OPERATION_UP;
+            case 1:
+                return VIRTUAL_NETWORK_CONFIG_OPERATION_CONFIG_UPDATE;
+            case 2:
+                return VIRTUAL_NETWORK_CONFIG_OPERATION_DOWN;
+            case 3:
+                return VIRTUAL_NETWORK_CONFIG_OPERATION_DESTROY;
+            default:
+                throw new RuntimeException("Unhandled value: " + id);
+        }
+    }
 }