More than one-third of professional Java developers surveyed by Perforce JRebel were using the eight-year-old version of Java for their main application.

The 15-question survey included a mixture of Likert scales, multiple choice and open-ended questions. A remarkable 96 percent of Spring users say the tooling helps them be better Java developers.

Java development has supplanted IT security as the most difficult skill set for hiring managers to locate, a Dice.com survey finds.