From 6e4e6b37818d00e685863c0eb3e40d47e6c7de90 Mon Sep 17 00:00:00 2001
From: Decebal Suiu <decebal.suiu@gmail.com>
Date: Tue, 6 Feb 2024 01:37:52 +0200
Subject: [PATCH] Ignore fire plugin state event without state change

---
 pf4j/src/main/java/org/pf4j/AbstractPluginManager.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pf4j/src/main/java/org/pf4j/AbstractPluginManager.java b/pf4j/src/main/java/org/pf4j/AbstractPluginManager.java
index af7c106..2f0d210 100644
--- a/pf4j/src/main/java/org/pf4j/AbstractPluginManager.java
+++ b/pf4j/src/main/java/org/pf4j/AbstractPluginManager.java
@@ -861,6 +861,11 @@ public abstract class AbstractPluginManager implements PluginManager {
      * @param event the plugin state event
      */
     protected synchronized void firePluginStateEvent(PluginStateEvent event) {
+        if (event.getPluginState() == event.getOldState()) {
+            // ignore events without state change
+            return;
+        }
+
         for (PluginStateListener listener : pluginStateListeners) {
             log.trace("Fire '{}' to '{}'", event, listener);
             listener.pluginStateChanged(event);