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cab333b217
Don't send requests of every player was found in the global api cache SpigotMC/Spigot@841270ff1e Correctly set the response code for the cached lookups and return the ... SpigotMC/Spigot@f170b7899c Don't try and re-set the global api cache on reload SpigotMC/Spigot@b410a00a66 Use a compile time sneaky throw hack. SpigotMC/Spigot@508462b96b Fix a missed rename in WorldGenGroundBush SpigotMC/Spigot@0614d8fae9
68 lines
3.6 KiB
Diff
68 lines
3.6 KiB
Diff
From eefb473aac1d8fa827fa6fb06ae9831ed260b88b Mon Sep 17 00:00:00 2001
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From: md_5 <git@md-5.net>
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Date: Wed, 16 Jul 2014 17:24:21 +1000
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Subject: [PATCH] Ease ClassLoader Deadlocks Where Possible
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When on Java 7 we can register the classloader as parallel capable to prevent deadlocks caused by certain scenarios. Due to the nature of PluginClassLoader this isn't completely safe, but we can make it safer by switching to concurrency focused collections. Either way this is far better than crashing the server.
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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 6611342..a845e81 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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@@ -48,7 +48,7 @@ import org.yaml.snakeyaml.error.YAMLException;
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public final class JavaPluginLoader implements PluginLoader {
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final Server server;
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private final Pattern[] fileFilters = new Pattern[] { Pattern.compile("\\.jar$"), };
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- private final Map<String, Class<?>> classes = new HashMap<String, Class<?>>();
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+ private final Map<String, Class<?>> classes = new java.util.concurrent.ConcurrentHashMap<String, Class<?>>(); // Spigot
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private final Map<String, PluginClassLoader> loaders = new LinkedHashMap<String, PluginClassLoader>();
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public static final CustomTimingsHandler pluginParentTimer = new CustomTimingsHandler("** Plugins"); // Spigot
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diff --git a/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java b/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
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index 13f8633..4cffa13 100644
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--- a/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
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+++ b/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
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@@ -17,7 +17,7 @@ import org.bukkit.plugin.PluginDescriptionFile;
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*/
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final class PluginClassLoader extends URLClassLoader {
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private final JavaPluginLoader loader;
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- private final Map<String, Class<?>> classes = new HashMap<String, Class<?>>();
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+ private final Map<String, Class<?>> classes = new java.util.concurrent.ConcurrentHashMap<String, Class<?>>(); // Spigot
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private final PluginDescriptionFile description;
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private final File dataFolder;
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private final File file;
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@@ -25,6 +25,30 @@ final class PluginClassLoader extends URLClassLoader {
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private JavaPlugin pluginInit;
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private IllegalStateException pluginState;
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+ // Spigot Start
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+ static
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+ {
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+ try
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+ {
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+ java.lang.reflect.Method method = ClassLoader.class.getDeclaredMethod( "registerAsParallelCapable" );
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+ if ( method != null )
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+ {
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+ boolean oldAccessible = method.isAccessible();
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+ method.setAccessible( true );
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+ method.invoke( null );
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+ method.setAccessible( oldAccessible );
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+ org.bukkit.Bukkit.getLogger().log( java.util.logging.Level.INFO, "Set PluginClassLoader as parallel capable" );
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+ }
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+ } catch ( NoSuchMethodException ex )
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+ {
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+ // Ignore
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+ } catch ( Exception ex )
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+ {
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+ org.bukkit.Bukkit.getLogger().log( java.util.logging.Level.WARNING, "Error setting PluginClassLoader as parallel capable", ex );
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+ }
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+ }
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+ // Spigot End
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+
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PluginClassLoader(final JavaPluginLoader loader, final ClassLoader parent, final PluginDescriptionFile description, final File dataFolder, final File file) throws InvalidPluginException, MalformedURLException {
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super(new URL[] {file.toURI().toURL()}, parent);
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Validate.notNull(loader, "Loader cannot be null");
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--
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1.9.1
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