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Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: da9ef3c5 #496: Add methods to get/set ItemStacks in EquipmentSlots 3abebc9f #492: Let Tameable extend Animals rather than Entity 941111a0 #495: Expose ItemStack and hand used in PlayerShearEntityEvent 4fe19cae #494: InventoryView - Add missing Brewing FUEL_TIME CraftBukkit Changes:933e9094
#664: Add methods to get/set ItemStacks in EquipmentSlots18722312
#662: Expose ItemStack and hand used in PlayerShearEntityEvent
142 lines
6.5 KiB
Diff
142 lines
6.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Tue, 1 May 2018 21:33:35 -0400
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Subject: [PATCH] Close Plugin Class Loaders on Disable
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This should close more memory leaks from /reload and disabling plugins,
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by closing the class loader and the jar file.
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diff --git a/src/main/java/org/bukkit/plugin/PluginLoader.java b/src/main/java/org/bukkit/plugin/PluginLoader.java
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index a88733f1cd1ddb5d85ab1b0e6af4fd5b80bbc1c6..6ab9cd8213cbe35943748dcf42948d5fc048c84c 100644
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--- a/src/main/java/org/bukkit/plugin/PluginLoader.java
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+++ b/src/main/java/org/bukkit/plugin/PluginLoader.java
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@@ -77,4 +77,18 @@ public interface PluginLoader {
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* @param plugin Plugin to disable
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*/
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public void disablePlugin(@NotNull Plugin plugin);
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+ // Paper start - close Classloader on disable
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+ /**
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+ * Disables the specified plugin
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+ * <p>
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+ * Attempting to disable a plugin that is not enabled will have no effect
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+ *
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+ * @param plugin Plugin to disable
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+ * @param closeClassloader if the classloader for the Plugin should be closed
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+ */
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+ // provide default to allow other PluginLoader implementations to work
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+ default public void disablePlugin(@NotNull Plugin plugin, boolean closeClassloader) {
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+ disablePlugin(plugin);
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+ }
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+ // Paper end - close Classloader on disable
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}
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diff --git a/src/main/java/org/bukkit/plugin/PluginManager.java b/src/main/java/org/bukkit/plugin/PluginManager.java
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index 41e26451fe12d8e6e0ef73c85731b24b4e3f200c..86cc5025ad98f7a752c51713b7cd6a39d5136ecc 100644
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--- a/src/main/java/org/bukkit/plugin/PluginManager.java
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+++ b/src/main/java/org/bukkit/plugin/PluginManager.java
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@@ -161,6 +161,18 @@ public interface PluginManager {
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*/
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public void disablePlugin(@NotNull Plugin plugin);
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+ // Paper start - close Classloader on disable
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+ /**
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+ * Disables the specified plugin
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+ * <p>
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+ * Attempting to disable a plugin that is not enabled will have no effect
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+ *
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+ * @param plugin Plugin to disable
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+ * @param closeClassloader if the classloader for the Plugin should be closed
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+ */
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+ public void disablePlugin(@NotNull Plugin plugin, boolean closeClassloader);
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+ // Paper end - close Classloader on disable
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+
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/**
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* Gets a {@link Permission} from its fully qualified name
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*
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diff --git a/src/main/java/org/bukkit/plugin/SimplePluginManager.java b/src/main/java/org/bukkit/plugin/SimplePluginManager.java
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index 8ddaf9c2e63b382533d7f8929023c364ff3a8f9d..8bb24f734f0bbb5df37dff2f376a450b8be9be28 100644
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--- a/src/main/java/org/bukkit/plugin/SimplePluginManager.java
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+++ b/src/main/java/org/bukkit/plugin/SimplePluginManager.java
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@@ -492,17 +492,28 @@ public final class SimplePluginManager implements PluginManager {
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@Override
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public void disablePlugins() {
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+ disablePlugins(false);
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+ }
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+
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+ public void disablePlugins(boolean closeClassloaders) {
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+ // Paper end - close Classloader on disable
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Plugin[] plugins = getPlugins();
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for (int i = plugins.length - 1; i >= 0; i--) {
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- disablePlugin(plugins[i]);
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+ disablePlugin(plugins[i], closeClassloaders); // Paper - close Classloader on disable
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}
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}
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@Override
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public void disablePlugin(@NotNull final Plugin plugin) {
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+ disablePlugin(plugin, false);
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+ }
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+
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+ @Override
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+ public void disablePlugin(@NotNull final Plugin plugin, boolean closeClassloader) {
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+ // Paper end - close Classloader on disable
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if (plugin.isEnabled()) {
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try {
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- plugin.getPluginLoader().disablePlugin(plugin);
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+ plugin.getPluginLoader().disablePlugin(plugin, closeClassloader); // Paper - close Classloader on disable
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} catch (Throwable ex) {
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handlePluginException("Error occurred (in the plugin loader) while disabling "
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+ plugin.getDescription().getFullName() + " (Is it up to date?)", ex, plugin); // Paper
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@@ -557,7 +568,7 @@ public final class SimplePluginManager implements PluginManager {
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@Override
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public void clearPlugins() {
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synchronized (this) {
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- disablePlugins();
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+ disablePlugins(true); // Paper - close Classloader on disable
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plugins.clear();
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lookupNames.clear();
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dependencyGraph = GraphBuilder.directed().build();
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diff --git a/src/main/java/org/bukkit/plugin/java/JavaPluginLoader.java b/src/main/java/org/bukkit/plugin/java/JavaPluginLoader.java
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index e72cbde4b3225cbf17d8a9b275e0ffcaa6d86c19..32ec68b489ab1933b4375a339c77c05a3e235202 100644
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--- a/src/main/java/org/bukkit/plugin/java/JavaPluginLoader.java
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+++ b/src/main/java/org/bukkit/plugin/java/JavaPluginLoader.java
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@@ -331,7 +331,7 @@ public final class JavaPluginLoader implements PluginLoader {
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} catch (Throwable ex) {
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server.getLogger().log(Level.SEVERE, "Error occurred while enabling " + plugin.getDescription().getFullName() + " (Is it up to date?)", ex);
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// Paper start - Disable plugins that fail to load
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- disablePlugin(jPlugin);
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+ server.getPluginManager().disablePlugin(jPlugin, true); // Paper - close Classloader on disable - She's dead jim
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return;
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// Paper end
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}
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@@ -344,6 +344,12 @@ public final class JavaPluginLoader implements PluginLoader {
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@Override
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public void disablePlugin(@NotNull Plugin plugin) {
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+ // Paper start - close Classloader on disable
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+ disablePlugin(plugin, false); // Retain old behavior unless requested
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+ }
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+
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+ public void disablePlugin(@NotNull Plugin plugin, boolean closeClassloader) {
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+ // Paper end - close Class Loader on disable
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Validate.isTrue(plugin instanceof JavaPlugin, "Plugin is not associated with this PluginLoader");
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if (plugin.isEnabled()) {
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@@ -370,6 +376,16 @@ public final class JavaPluginLoader implements PluginLoader {
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for (String name : names) {
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removeClass(name);
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}
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+ // Paper start - close Class Loader on disable
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+ try {
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+ if (closeClassloader) {
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+ loader.close();
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+ }
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+ } catch (IOException e) {
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+ server.getLogger().log(Level.WARNING, "Error closing the Plugin Class Loader for " + plugin.getDescription().getFullName());
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+ e.printStackTrace();
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+ }
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+ // Paper end
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}
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}
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}
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