Commons Lang, a package of Java utility classes for the classes that are in java.lang's hierarchy, or are considered to be so standard as to justify existence in java.lang.
'commons-lang:commons-lang:2.4'
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.4</version>
</dependency>
<dependency org="commons-lang" name="commons-lang" rev="2.4"/>
"commons-lang", "commons-lang", "2.4"