Oracle has released a new version of JDeveloper, 11.1.2.0, with a whole bunch of new features, including Maven support, and a lot of performance enhancements. You can check out details of the new features here.
Please note that this version does not support WebCenter, SOA and BPM development. You should continue to use 11.1.1.x for that kind of development.
Building a Custom BPM Worklist, Oracle InSync 2011 User Group presentation
Performance Tuning for Oracle Business Process Management Suite 10g, Oracle Whitepaper, July 2011
Performance Tuning for Oracle Business Process Management Suite 11g, Oracle Whitepaper, February 2013
Oracle BPM Suite 11g: Advanced BPMN Topics, Packt Publishing, September 2012
Fusion Middleware 12.1.2: Developing Applications with Continuous Integration
Fusion Middleware 12.1.3: Developing Applications with Continuous Integration
RedStack 