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105 lines
4.6 KiB
Diff
105 lines
4.6 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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Note: This patch is no longer necessary as upstream now also closes
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PluginClassLoaders on disable. This patch is now only to keep around
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API methods it previously added, and to add back the log message when a
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PluginClassLoader fails to disable, as upstream decided to ignore the
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exception.
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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..256e440e699942e3c9da4205bb964bdc10ec92c4 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 +77,21 @@ 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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+
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+ // Paper start - close Classloader on disable
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+ /**
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+ * This method is no longer useful as upstream has
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+ * made it so plugin classloaders are always closed on disable.
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+ * Use {@link #disablePlugin(Plugin)} instead.
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+ *
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+ * @param plugin Plugin to disable
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+ * @param closeClassloader unused
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+ * @deprecated Classloader is always closed by upstream now.
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+ */
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+ @Deprecated(forRemoval = true)
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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..0d1b20f2b5580ea5505ccc2f003925dbcee67199 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 +161,22 @@ 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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+ * This method is no longer useful as upstream has
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+ * made it so plugin classloaders are always closed on disable.
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+ * Use {@link #disablePlugin(Plugin)} instead.
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+ *
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+ * @param plugin Plugin to disable
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+ * @param closeClassloader unused
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+ * @deprecated Classloader is always closed by upstream now.
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+ */
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+ @Deprecated(forRemoval = true)
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+ public default void disablePlugin(@NotNull Plugin plugin, boolean closeClassloader) {
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+ this.disablePlugin(plugin);
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+ }
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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 2d27dfb859c312d46a14d0356c7c3f227e965a67..7867243a8ed67416895cdcd949ac424f5d29d98b 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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@@ -498,6 +498,21 @@ public final class SimplePluginManager implements PluginManager {
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}
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}
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+ // Paper start
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+ /**
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+ * This method is no longer useful as upstream has
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+ * made it so plugin classloaders are always closed on disable.
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+ * Use {@link #disablePlugins()} instead.
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+ *
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+ * @param closeClassloaders unused
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+ * @deprecated Classloader is always closed by upstream now.
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+ */
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+ @Deprecated(forRemoval = true)
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+ public void disablePlugins(boolean closeClassloaders) {
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+ this.disablePlugins();
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+ }
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+ // Paper end
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+
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@Override
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public void disablePlugin(@NotNull final Plugin plugin) {
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if (plugin.isEnabled()) {
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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 b7cd98f20de3421cd3b8a95cfa2155fa77afa8b1..7483ceff298cafa244bd99316a0338aa075267d4 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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@@ -366,6 +366,7 @@ public final class JavaPluginLoader implements PluginLoader {
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loader.close();
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} catch (IOException ex) {
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//
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+ this.server.getLogger().log(Level.WARNING, "Error closing the PluginClassLoader for '" + plugin.getDescription().getFullName() + "'", ex); // Paper - log exception
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}
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}
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}
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