This (https://github.com/SilverTiger/lwjgl3-tutorial/wiki/Introduction) lwjgl tutorial was talking about ClosureError, and I wanted to see the body of the class.
But I can't seem to find it in this page: https://javadoc.lwjgl.org/allclasses-noframe.html
I was wondering why the class in not listed there?
I looked up the class on github, and found out that the class do exists (https://github.com/LWJGL/lwjgl3/blob/9abb49f807d09d08541074bf16aceed9a963bd99/modules/core/src/main/java/org/lwjgl/system/libffi/ClosureError.java).
ClosureError was removed before LWJGL 3.0.0 was released. That tutorial must be updated. For up-to-date example code, see the LWJGL samples (https://github.com/LWJGL/lwjgl3/tree/master/modules/samples/src/test/java/org/lwjgl/demo) or the LWJGL demos (https://github.com/LWJGL/lwjgl3-demos).
Thank you @spasi