[LANG-1391] Improve Javadoc for StringUtils.isAnyEmpty(null).

src/changes/changes.xml

@@ -58,6 +58,7 @@ The <action> type attribute can be add,update,fix,remove.
     <action issue="LANG-1352" type="add" dev="pschumacher" due-to="Ruslan Sibgatullin">EnumUtils.getEnumIgnoreCase and isValidEnumIgnoreCase methods added</action>
     <action issue="LANG-1372" type="add" dev="pschumacher" due-to="Sérgio Ozaki">Add ToStringSummary annotation</action>
     <action issue="LANG-1356" type="add" dev="pschumacher" due-to="Yathos UG">Add bypass option for classes to recursive and reflective EqualsBuilder</action>
+    <action issue="LANG-1391" type="add" dev="ggregory" due-to="Sauro Matulli, Oleg Chubaryov">Improve Javadoc for StringUtils.isAnyEmpty(null)</action>   
   </release>
 
   <release version="3.7" date="2017-11-04" description="New features and bug fixes. Requires Java 7, supports Java 8, 9, 10.">

src/main/java/org/apache/commons/lang3/StringUtils.java

@@ -233,7 +233,8 @@ public class StringUtils {
      * <p>Checks if any of the CharSequences are empty ("") or null.</p>
      *
      * <pre>
-     * StringUtils.isAnyEmpty(null)             = true
+     * StringUtils.isAnyEmpty((String) null)    = true
+     * StringUtils.isAnyEmpty((String[]) null)  = false
      * StringUtils.isAnyEmpty(null, "foo")      = true
      * StringUtils.isAnyEmpty("", "bar")        = true
      * StringUtils.isAnyEmpty("bob", "")        = true