From 269812669c945616175da7613683b5d9d524b466 Mon Sep 17 00:00:00 2001
From: Decebal Suiu <decebal.suiu@gmail.com>
Date: Sat, 27 Jan 2018 23:55:03 +0200
Subject: [PATCH] Before start a plugin check if the plugin is resolved

---
 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 f247998..43a69ba 100644
--- a/pf4j/src/main/java/org/pf4j/AbstractPluginManager.java
+++ b/pf4j/src/main/java/org/pf4j/AbstractPluginManager.java
@@ -350,6 +350,11 @@ public abstract class AbstractPluginManager implements PluginManager {
             return PluginState.STARTED;
         }
 
+        if (!resolvedPlugins.contains(pluginWrapper)) {
+            log.warn("Cannot start an unresolved plugin '{}'", getPluginLabel(pluginDescriptor));
+            return pluginState;
+        }
+        
         if (PluginState.DISABLED == pluginState) {
             // automatically enable plugin on manual plugin start
             if (!enablePlugin(pluginId)) {
-- 
2.39.5