Fix for problem with file lock on Windows platform. Introduce unloadPlugins method. (#387)

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3 files changed, 18 insertions, 0 deletions

diff --git a/pf4j/src/main/java/org/pf4j/AbstractPluginManager.java b/pf4j/src/main/java/org/pf4j/AbstractPluginManager.java
index 5b8b82c..ea8d297 100644
--- a/pf4j/src/main/java/org/pf4j/AbstractPluginManager.java
+++ b/pf4j/src/main/java/org/pf4j/AbstractPluginManager.java
@@ -236,6 +236,17 @@ public abstract class AbstractPluginManager implements PluginManager {
     }
 
     /**
+     * Unload all plugins
+     */
+    @Override
+    public void unloadPlugins() {
+        // wrap resolvedPlugins in new list because of concurrent modification
+        for (PluginWrapper pluginWrapper : new ArrayList<>(resolvedPlugins)) {
+            unloadPlugin(pluginWrapper.getPluginId());
+        }
+    }
+
+    /**
      * Unload the specified plugin and it's dependents.
      */
     @Override
diff --git a/pf4j/src/main/java/org/pf4j/PluginManager.java b/pf4j/src/main/java/org/pf4j/PluginManager.java
index a937f22..248b1ac 100644
--- a/pf4j/src/main/java/org/pf4j/PluginManager.java
+++ b/pf4j/src/main/java/org/pf4j/PluginManager.java
@@ -101,6 +101,11 @@ public interface PluginManager {
     PluginState stopPlugin(String pluginId);
 
     /**
+     * Unload all plugins
+     */
+    void unloadPlugins();
+
+    /**
      * Unload a plugin.
      *
      * @param pluginId the unique plugin identifier, specified in its metadata
diff --git a/pf4j/src/test/java/org/pf4j/JarPluginManagerTest.java b/pf4j/src/test/java/org/pf4j/JarPluginManagerTest.java
index d9ca90a..4eb2872 100644
--- a/pf4j/src/test/java/org/pf4j/JarPluginManagerTest.java
+++ b/pf4j/src/test/java/org/pf4j/JarPluginManagerTest.java
@@ -53,6 +53,8 @@ public class JarPluginManagerTest {
 
     @AfterEach
     public void tearDown() {
+        pluginManager.unloadPlugins();
+
         pluginJar = null;
         pluginManager = null;
     }