Merge branch 'develop'

# Conflicts:
#	fj-core/src/main/java/org/fugerit/java/core/lang/compare/CheckEmptyHelper.java

Author: fugerit79

fj-core/src/main/java/org/fugerit/java/core/lang/compare/CheckEmpty.java

@@ -2,6 +2,11 @@
 
 public interface CheckEmpty {
 
+	/**
+	 * Check if the item is logically empty
+	 * 
+	 * @return	true if the item is empty
+	 */
 	boolean isEmpty();
 
 }

fj-core/src/main/java/org/fugerit/java/core/lang/compare/CheckEmptyHelper.java

@@ -4,6 +4,16 @@
 
 public class CheckEmptyHelper {
 
+	/**
+	 * Check if a object is empty.
+	 * 
+	 * If the object is null then is empty
+	 * If the object is a string then even empty string is
+	 * If the object implements CheckEmpty interface that method is checked
+	 * 
+	 * @param v		the item to be checked
+	 * @return		true if the item is null or logically empty
+	 */
 	public static boolean isEmpty( Object v ) {
 		boolean empty = ( v == null );
 		if ( !empty ) {