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[phpBB Debug] PHP Warning: in file [ROOT]/vendor/twig/twig/lib/Twig/Extension/Core.php on line 1275: count(): Parameter must be an array or an object that implements Countable- 09 Apr 2017 11:06
- Forum: Statistics, Clustering & Data Lab
- Topic: PROBLEM: Java null pointer exception on edit tool
- Replies: 1
- Views: 18786
Re: PROBLEM: Java null pointer exception on edit tool
NullPointerExceptions are exceptions that occur when you try to use a reference that points to no location in memory (null) as though it were referencing an object. Calling a method on a null reference or trying to access a field of a null reference will trigger a NullPointerException. More abot...J...