diff --git a/src/main/java/org/bukkit/event/entity/VillagerCareerChangeEvent.java b/src/main/java/org/bukkit/event/entity/VillagerCareerChangeEvent.java
index b550029c..346899bc 100644
--- a/src/main/java/org/bukkit/event/entity/VillagerCareerChangeEvent.java
+++ b/src/main/java/org/bukkit/event/entity/VillagerCareerChangeEvent.java
@@ -60,7 +60,7 @@ public class VillagerCareerChangeEvent extends EntityEvent implements Cancellabl
     }
 
     @Override
-    public void setCancelled(@NotNull boolean cancel) {
+    public void setCancelled(boolean cancel) {
         cancelled = cancel;
     }
 
diff --git a/src/main/java/org/bukkit/event/world/TimeSkipEvent.java b/src/main/java/org/bukkit/event/world/TimeSkipEvent.java
index e18dbc30..cb50cbbb 100644
--- a/src/main/java/org/bukkit/event/world/TimeSkipEvent.java
+++ b/src/main/java/org/bukkit/event/world/TimeSkipEvent.java
@@ -18,7 +18,7 @@ public class TimeSkipEvent extends WorldEvent implements Cancellable {
     private final SkipReason skipReason;
     private long skipAmount;
 
-    public TimeSkipEvent(@NotNull World world, @NotNull SkipReason skipReason, @NotNull long skipAmount) {
+    public TimeSkipEvent(@NotNull World world, @NotNull SkipReason skipReason, long skipAmount) {
         super(world);
         this.skipReason = skipReason;
         this.skipAmount = skipAmount;
diff --git a/src/test/java/org/bukkit/AnnotationTest.java b/src/test/java/org/bukkit/AnnotationTest.java
index 0c737724..4ac3dd97 100644
--- a/src/test/java/org/bukkit/AnnotationTest.java
+++ b/src/test/java/org/bukkit/AnnotationTest.java
@@ -74,7 +74,7 @@ public class AnnotationTest {
                 List<ParameterNode> parameters = method.parameters;
 
                 for (int i = 0; i < paramTypes.length; i++) {
-                    if (mustBeAnnotated(paramTypes[i]) && !isWellAnnotated(method.invisibleParameterAnnotations == null ? null : method.invisibleParameterAnnotations[i])) {
+                    if (mustBeAnnotated(paramTypes[i]) ^ isWellAnnotated(method.invisibleParameterAnnotations == null ? null : method.invisibleParameterAnnotations[i])) {
                         ParameterNode paramNode = parameters == null ? null : parameters.get(i);
                         String paramName = paramNode == null ? null : paramNode.name;