Add method to determine if the proxy is a static object proxy or not

Author: theminecoder

src/main/java/me/theminecoder/minecraft/nmsproxy/NMSProxy.java

@@ -15,4 +15,6 @@ public interface NMSProxy {
      */
     Object getProxyHandle();
 
+    boolean isProxyStatic();
+
 }

src/main/java/me/theminecoder/minecraft/nmsproxy/proxy/NMSProxyInvocationHandler.java

@@ -44,6 +44,10 @@ public Object invoke(Object proxy, Method method, Object[] args) throws Throwabl
             return proxyProvider.getStaticNMSObject((Class<? extends NMSProxy>) proxy.getClass().getInterfaces()[0]);
         }
 
+        if(method.getName().equals("isProxyStatic")) {
+            return handle == null;
+        }
+
         if (method.isDefault()) {
             final Class<?> declaringClass = method.getDeclaringClass();
             boolean extraClass = false;