Fix thread safety issues in EntitySlice

nms-patches/EntitySlice.patch

@@ -0,0 +1,38 @@
+--- /home/matt/mc-dev-private//net/minecraft/server/EntitySlice.java	2015-03-22 19:06:47.125875941 +0000
++++ src/main/java/net/minecraft/server/EntitySlice.java	2015-03-22 19:06:47.125875941 +0000
+@@ -12,7 +12,7 @@
+ 
+ public class EntitySlice<T> extends AbstractSet<T> {
+ 
+-    private static final Set<Class<?>> a = Sets.newHashSet();
++    private static final Set<Class<?>> a = Sets.newConcurrentHashSet(); // CraftBukkit
+     private final Map<Class<?>, List<T>> b = Maps.newHashMap();
+     private final Set<Class<?>> c = Sets.newIdentityHashSet();
+     private final Class<T> d;
+@@ -40,7 +40,7 @@
+             Object object = iterator.next();
+ 
+             if (oclass.isAssignableFrom(object.getClass())) {
+-                this.a(object, oclass);
++                this.a((T) object, oclass);
+             }
+         }
+ 
+@@ -77,7 +77,7 @@
+         List list = (List) this.b.get(oclass);
+ 
+         if (list == null) {
+-            this.b.put(oclass, Lists.newArrayList(new Object[] { t0}));
++            this.b.put(oclass, Lists.newArrayList(t0));
+         } else {
+             list.add(t0);
+         }
+@@ -125,7 +125,7 @@
+     }
+ 
+     public Iterator<T> iterator() {
+-        return this.e.isEmpty() ? Iterators.emptyIterator() : Iterators.unmodifiableIterator(this.e.iterator());
++        return this.e.isEmpty() ? Iterators.<T>emptyIterator() : Iterators.unmodifiableIterator(this.e.iterator());
+     }
+ 
+     public int size() {