mirror of
https://github.com/PaperMC/Paper.git
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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 Please note that this build includes changes to meet upstreams requirements for nullability annotations. While we aim for a level of accuracy, these might not be 100% correct, if there are any issues, please speak to us on discord, or open an issue on the tracker to discuss. Bukkit Changes: 9a6a1de3 Remove nullability annotations from enum constructors 3f0591ea SPIGOT-2540: Add nullability annotations to entire Bukkit API CraftBukkit Changes:8d8475fc
SPIGOT-4666: Force parameter in HumanEntity#sleep8b1588e2
Fix ExplosionPrimeEvent#setFire not working with EnderCrystals39a287b7
Don't ignore newlines in PlayerListHeader/Footer Spigot Changes: cf694d87 Add nullability annotations
146 lines
6.3 KiB
Diff
146 lines
6.3 KiB
Diff
From 01b125b0fe0165e700c81c3211f8510da00461a5 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 da7839aa9..fbd65e8b0 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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@@ -78,4 +78,18 @@ 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 a468467b4..ba4ed7ed7 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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@@ -162,6 +162,18 @@ 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 12e17709c..7d4ca43b5 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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@@ -419,17 +419,29 @@ public final class SimplePluginManager implements PluginManager {
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}
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}
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+ // Paper start - close Classloader on disable
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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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+ // Paper start - close Classloader on disable
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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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+ 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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@@ -475,7 +487,7 @@ public final class SimplePluginManager implements PluginManager {
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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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HandlerList.unregisterAll();
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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 b9bf2124b..095448fe7 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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@@ -328,7 +328,7 @@ 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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@@ -340,6 +340,12 @@ public final class JavaPluginLoader implements PluginLoader {
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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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+ 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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@@ -366,6 +372,16 @@ 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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--
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2.21.0
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