[Bleeding] Fix checks for non-living entities. Fixes BUKKIT-5667

src/main/java/net/minecraft/server/EntityFireball.java

@@ -235,7 +235,7 @@ public abstract class EntityFireball extends Entity {
             this.P();
             if (damagesource.getEntity() != null) {
                 // CraftBukkit start
-                if (!CraftEventFactory.handleNonLivingEntityDamageEvent(this, damagesource, f)) {
+                if (CraftEventFactory.handleNonLivingEntityDamageEvent(this, damagesource, f)) {
                     return false;
                 }
                 // CraftBukkit end

src/main/java/net/minecraft/server/EntityItemFrame.java

@@ -24,7 +24,7 @@ public class EntityItemFrame extends EntityHanging {
         } else if (this.getItem() != null) {
             if (!this.world.isStatic) {
                 // CraftBukkit start - fire EntityDamageEvent
-                if (!org.bukkit.craftbukkit.event.CraftEventFactory.handleNonLivingEntityDamageEvent(this, damagesource, f) || this.dead) {
+                if (org.bukkit.craftbukkit.event.CraftEventFactory.handleNonLivingEntityDamageEvent(this, damagesource, f) || this.dead) {
                     return true;
                 }
                 // CraftBukkit end