EpicKnarvik97/mcMMO
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Memory leak fix for arrow metadata

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This commit is contained in:
nossr50 2021-01-05 12:04:48 -08:00
parent 7ea6809fd3
commit 888205fd89
5 changed files with 70 additions and 26 deletions
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4
Changelog.txt
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@ -1,3 +1,7 @@
Version 2.1.169
Fixed a few memory leaks involving arrows
Fixed mcMMO inappropriately assigning metadata to projectiles not fired from players
Version 2.1.168
Fixed an IndexOutOfBoundsException error when trying to access UserBlockTracker from an invalid range (thanks t00thpick1)
(API) UserBlockTracker is now the interface by which our block-tracker will be known (thanks t00thpick1)

2
pom.xml
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@ -2,7 +2,7 @@
<modelVersion>4.0.0</modelVersion>
<groupId>com.gmail.nossr50.mcMMO</groupId>
<artifactId>mcMMO</artifactId>
<version>2.1.168</version>
<version>2.1.169-SNAPSHOT</version>
<name>mcMMO</name>
<url>https://github.com/mcMMO-Dev/mcMMO</url>
<scm>

50
src/main/java/com/gmail/nossr50/listeners/EntityListener.java
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@ -123,24 +123,26 @@ public class EntityListener implements Listener {
if(!WorldGuardManager.getInstance().hasMainFlag(player))
return;
}
Entity projectile = event.getProjectile();
//Should be noted that there are API changes regarding Arrow from 1.13.2 to current versions of the game
if (!(projectile instanceof Arrow)) {
return;
}
ItemStack bow = event.getBow();
if (bow != null
&& bow.containsEnchantment(Enchantment.ARROW_INFINITE)) {
projectile.setMetadata(mcMMO.infiniteArrowKey, mcMMO.metadataValue);
}
projectile.setMetadata(mcMMO.bowForceKey, new FixedMetadataValue(pluginRef, Math.min(event.getForce() * AdvancedConfig.getInstance().getForceMultiplier(), 1.0)));
projectile.setMetadata(mcMMO.arrowDistanceKey, new FixedMetadataValue(pluginRef, projectile.getLocation()));
//Cleanup metadata in 1 minute in case normal collection falls through
CombatUtils.cleanupArrowMetadata((Projectile) projectile);
}
Entity projectile = event.getProjectile();
//Should be noted that there are API changes regarding Arrow from 1.13.2 to current versions of the game
if (!(projectile instanceof Arrow)) {
return;
}
ItemStack bow = event.getBow();
if (bow != null
&& bow.containsEnchantment(Enchantment.ARROW_INFINITE)) {
projectile.setMetadata(mcMMO.infiniteArrowKey, mcMMO.metadataValue);
}
projectile.setMetadata(mcMMO.bowForceKey, new FixedMetadataValue(pluginRef, Math.min(event.getForce() * AdvancedConfig.getInstance().getForceMultiplier(), 1.0)));
projectile.setMetadata(mcMMO.arrowDistanceKey, new FixedMetadataValue(pluginRef, projectile.getLocation()));
}
@EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
@ -164,6 +166,8 @@ public class EntityListener implements Listener {
EntityType entityType = projectile.getType();
if(entityType == EntityType.ARROW || entityType == EntityType.SPECTRAL_ARROW) {
CombatUtils.delayArrowMetaCleanup(projectile); //Cleans up metadata 1 minute from now in case other collection methods fall through
if(!projectile.hasMetadata(mcMMO.bowForceKey))
projectile.setMetadata(mcMMO.bowForceKey, new FixedMetadataValue(pluginRef, 1.0));
@ -199,7 +203,6 @@ public class EntityListener implements Listener {
Entity entity = event.getEntity();
Material notYetReplacedType = block.getState().getType(); //because its from getState() this is the block that hasn't been changed yet, which is likely air/lava/water etc
// When the event is fired for the falling block that changes back to a
// normal block
// event.getBlock().getType() returns AIR
@ -418,13 +421,14 @@ public class EntityListener implements Listener {
LivingEntity livingEntity = (LivingEntity) entityDamageEvent.getEntity();
if(entityDamageEvent.getFinalDamage() >= livingEntity.getHealth()) {
/*
* This sets entity names back to whatever they are supposed to be
*/
//This sets entity names back to whatever they are supposed to be
CombatUtils.fixNames(livingEntity);
}
}
}
if(entityDamageEvent.getDamager() instanceof Projectile) {
CombatUtils.cleanupArrowMetadata((Projectile) entityDamageEvent.getDamager());
}
}
public boolean checkParties(Cancellable event, Player defendingPlayer, Player attackingPlayer) {

3
src/main/java/com/gmail/nossr50/skills/archery/ArcheryManager.java
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@ -55,8 +55,7 @@ public class ArcheryManager extends SkillManager {
public double distanceXpBonusMultiplier(LivingEntity target, Entity arrow) {
//Hacky Fix - some plugins spawn arrows and assign them to players after the ProjectileLaunchEvent fires
if(!arrow.hasMetadata(mcMMO.arrowDistanceKey))
return arrow.getLocation().distance(target.getLocation());
return 1;
Location firedLocation = (Location) arrow.getMetadata(mcMMO.arrowDistanceKey).get(0).value();
Location targetLocation = target.getLocation();

37
src/main/java/com/gmail/nossr50/util/skills/CombatUtils.java
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@ -25,16 +25,19 @@ import com.gmail.nossr50.util.compat.layers.persistentdata.MobMetaFlagType;
import com.gmail.nossr50.util.player.NotificationManager;
import com.gmail.nossr50.util.player.UserManager;
import com.google.common.collect.ImmutableMap;
import org.bukkit.Bukkit;
import org.bukkit.GameMode;
import org.bukkit.Material;
import org.bukkit.attribute.Attribute;
import org.bukkit.attribute.AttributeInstance;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.*;
import org.bukkit.event.entity.EntityDamageByEntityEvent;
import org.bukkit.event.entity.EntityDamageEvent;
import org.bukkit.event.entity.EntityDamageEvent.DamageCause;
import org.bukkit.event.entity.EntityDamageEvent.DamageModifier;
import org.bukkit.inventory.ItemStack;
import org.bukkit.metadata.FixedMetadataValue;
import org.bukkit.metadata.MetadataValue;
import org.bukkit.potion.PotionEffectType;
import org.bukkit.projectiles.ProjectileSource;
@ -269,6 +272,7 @@ public final class CombatUtils {
//Make sure the profiles been loaded
if(mcMMOPlayer == null) {
cleanupArrowMetadata(arrow);
return;
}
@ -309,6 +313,8 @@ public final class CombatUtils {
"Force Multiplier: "+forceMultiplier,
"Initial Damage: "+initialDamage,
"Final Damage: "+finalDamage);
//Clean data
cleanupArrowMetadata(arrow);
}
/**
@ -428,6 +434,9 @@ public final class CombatUtils {
if (!Misc.isNPCEntityExcludingVillagers(player) && PrimarySkillType.ARCHERY.getPermissions(player)) {
processArcheryCombat(target, player, event, arrow);
} else {
//Cleanup Arrow
cleanupArrowMetadata(arrow);
}
if (target.getType() != EntityType.CREEPER && !Misc.isNPCEntityExcludingVillagers(player) && PrimarySkillType.TAMING.getPermissions(player)) {
@ -1059,4 +1068,32 @@ public final class CombatUtils {
attributeInstance.setBaseValue(normalSpeed * multiplier);
}
}
/**
* Clean up metadata from a projectile
*
* @param entity projectile
*/
public static void cleanupArrowMetadata(@NotNull Projectile entity) {
if(entity.hasMetadata(mcMMO.infiniteArrowKey)) {
entity.removeMetadata(mcMMO.infiniteArrowKey, mcMMO.p);
}
if(entity.hasMetadata(mcMMO.bowForceKey)) {
entity.removeMetadata(mcMMO.bowForceKey, mcMMO.p);
}
if(entity.hasMetadata(mcMMO.arrowDistanceKey)) {
entity.removeMetadata(mcMMO.arrowDistanceKey, mcMMO.p);
}
}
/**
* Clean up metadata from a projectile after a minute has passed
*
* @param entity the projectile
*/
public static void delayArrowMetaCleanup(@NotNull Projectile entity) {
Bukkit.getServer().getScheduler().runTaskLater(mcMMO.p, () -> { cleanupArrowMetadata(entity);}, 20*60);
}
}