CollectionUtils (Eoulsan 2.6.1 API)

java.lang.Object
- fr.ens.biologie.genomique.eoulsan.util.CollectionUtils

```
public class CollectionUtils
extends Object
```
This class define an utility class that contains useful methods for collections.

Since:

2.0

Author:

Laurent Jourdren

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static <E> Collection<E>`	`nullToEmpty(Collection<E> c)`	Return an empty collection if the input collection is null;

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - nullToEmpty
```
public static <E> Collection<E> nullToEmpty(Collection<E> c)
```
    Return an empty collection if the input collection is null;
    
    Parameters:
    
    c - input collection
    
    Returns:
    
    a collection