Don't yell if Floodgate cannot remove the injection

api/src/main/java/org/geysermc/floodgate/api/inject/PlatformInjector.java

@@ -42,6 +42,16 @@ public interface PlatformInjector {
      */
     boolean inject() throws Exception;
 
+    /**
+     * Some platforms may not be able to remove their injection process. If so, this method will
+     * return false.
+     *
+     * @return true if it is safe to attempt to remove our injection performed in {@link #inject()}.
+     */
+    default boolean canRemoveInjection() {
+        return true;
+    }
+
     /**
      * Removes the injection from the server. Please note that this function should only be used
      * internally (on plugin shutdown). This method will also remove every added addon.

bungee/src/main/java/org/geysermc/floodgate/inject/bungee/BungeeInjector.java

@@ -65,6 +65,11 @@ public final class BungeeInjector extends CommonPlatformInjector {
         }
     }
 
+    @Override
+    public boolean canRemoveInjection() {
+        return false;
+    }
+
     @Override
     public boolean removeInjection() {
         logger.error("Floodgate cannot remove itself from Bungee without a reboot");

common/src/main/java/org/geysermc/floodgate/FloodgatePlatform.java

@@ -127,7 +127,7 @@ public class FloodgatePlatform {
     }
 
     public boolean disable() {
-        if (injector != null) {
+        if (injector != null && injector.canRemoveInjection()) {
             try {
                 if (!injector.removeInjection()) {
                     logger.error("Failed to remove the injection!");

velocity/src/main/java/org/geysermc/floodgate/inject/velocity/VelocityInjector.java

@@ -75,6 +75,11 @@ public final class VelocityInjector extends CommonPlatformInjector {
         return injected = true;
     }
 
+    @Override
+    public boolean canRemoveInjection() {
+        return false;
+    }
+
     @Override
     public boolean removeInjection() {
         logger.error("Floodgate cannot remove itself from Bungee without a reboot");