Testing with PHP 5.4 at E_ALL produces strict warning messages such as:
Strict (2048): Declaration of Product::beforeSave() should be compatible with Model::beforeSave($options = Array) [APP/Model/Product.php, line 4]
It’s an easy fix, for example in APP/Model/Product.php change:
public function beforeSave() {
to:
public function beforeSave($options = array()) {