Miscellaneous Convenience Classes for Java (Some may seem simple, but they have all helped me be very productive with many Java projects.)
Class Descriptions:
CookieTools.java - HTTP Cookie manipulation methods.
Crypto.java - Crypto and Security Tools.
DB.java - JDBC/JDNI database class.
JDBC.java - JDBC single connection database class.
DT.java - Various date manipulation and formatting methods.
IPConv.java - IP4 Address Conversion Tools.
LT.java - Log4J Logging Tools.
OT.java - Object utility methods.
Prop.java - properties utilities.
SContext.java - servlet context utilities.
Txt.java - Text manipulation and conversion methods.