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-rw-r--r--src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 5ba18e68..58ca7ed8 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -821,6 +821,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
@Override
public void setExp(float exp) {
+ Preconditions.checkArgument(exp >= 0.0 && exp <= 1.0, "Experience progress must be between 0.0 and 1.0 (%s)", exp);
getHandle().exp = exp;
getHandle().lastSentExp = -1;
}