Fix ClassCastException for Rupture

Fixes #4476

Changelog.txt

@@ -1,3 +1,6 @@
+Version 2.1.187
+    Fixed a ClassCastException error involving Rupture
+
 Version 2.1.186
     Rupture has been reworked to solve a few outstanding issues (see notes)
     Fixed an exploit involving enchantments (thanks TheBusyBiscuit)

pom.xml

@@ -2,7 +2,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.gmail.nossr50.mcMMO</groupId>
     <artifactId>mcMMO</artifactId>
-    <version>2.1.186</version>
+    <version>2.1.187-SNAPSHOT</version>
     <name>mcMMO</name>
     <url>https://github.com/mcMMO-Dev/mcMMO</url>
     <scm>

src/main/java/com/gmail/nossr50/datatypes/player/McMMOPlayer.java

@@ -1081,7 +1081,7 @@ public class McMMOPlayer implements Identified {
     public void logout(boolean syncSave) {
         Player thisPlayer = getPlayer();
         if(getPlayer().hasMetadata(mcMMO.RUPTURE_META_KEY)) {
-            RuptureTaskMeta ruptureTaskMeta = (RuptureTaskMeta) getPlayer().getMetadata(mcMMO.RUPTURE_META_KEY);
+            RuptureTaskMeta ruptureTaskMeta = (RuptureTaskMeta) getPlayer().getMetadata(mcMMO.RUPTURE_META_KEY).get(0);
 
             //Punish a logout
             ruptureTaskMeta.getRuptureTimerTask().explode();

src/main/java/com/gmail/nossr50/skills/swords/SwordsManager.java

@@ -65,7 +65,7 @@ public class SwordsManager extends SkillManager {
      */
     public void processRupture(@NotNull LivingEntity target) {
         if(target.hasMetadata(mcMMO.RUPTURE_META_KEY)) {
-            RuptureTaskMeta ruptureTaskMeta = (RuptureTaskMeta) target.getMetadata(mcMMO.RUPTURE_META_KEY);
+            RuptureTaskMeta ruptureTaskMeta = (RuptureTaskMeta) target.getMetadata(mcMMO.RUPTURE_META_KEY).get(0);
 
             if(mmoPlayer.isDebugMode()) {
                 mmoPlayer.getPlayer().sendMessage("Rupture task ongoing for target " + target.toString());