groovy.lang.MissingMethodException even when method is defined

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Node<E> search(Node<E> node, int data){
    if(node == null){ return null }

    if( node.value == data ){
        return node
    }else if(data > node.value){
        return search(node.right,data)
    }else{
        return search(node.left,data)
    }
}  

This is what the search method looks like in my class of binary tree. Every element of the tree is a Node<E> object, where Node<E> is an inner class of BinarySearchTree class. However, when I call the method, I get an exception. Here's how I am calling the method:

search(bt.root,14)  

and the exception I get is this:

groovy.lang.MissingMethodException: No signature of method: BST.search() is applicable for argument types: (BinarySearchTree$Node, java.lang.Integer) values: [BinarySearchTree$Node@d851e, 14] Possible solutions: each(groovy.lang.Closure)

What is wrong here?

asked 36 secs ago

Little Child

9,268

groovy.lang.MissingMethodException even when method is defined