All Packages

org.apache.commons.langProvides highly reusable static utility methods, chiefly concerned with adding value to java.lang and other standard core classes.
org.apache.commons.lang.builderAssists in creating consistent equals(Object), toString(), hashCode(), and compareTo(Object) methods.
org.apache.commons.lang.enum Deprecated and replaced by org.apache.commons.lang.enums and will be removed in version 3.0.
org.apache.commons.lang.exceptionProvides JDK 1.4 style Nested Exception functionality for those on prior Java versions.
org.apache.commons.lang.mathExtends java.math for business mathematical classes.
org.apache.commons.lang.time Provides classes and methods to work with dates and durations.