--- a/net/minecraft/network/chat/IChatFormatted.java
+++ b/net/minecraft/network/chat/IChatFormatted.java
@@ -90,6 +90,11 @@
         StringBuilder stringbuilder = new StringBuilder();
 
         this.visit((s) -> {
+            // CraftBukkit start
+            if (stringbuilder.length() >= Short.MAX_VALUE) {
+                throw new IllegalArgumentException("Component string exceeded maximum length");
+            }
+            // CraftBukkit end
             stringbuilder.append(s);
             return Optional.empty();
         });