I found two different BPMN2 designer plugins for Eclipse.
1) One is part of jbpm-5.2.0.Final-installer-full.zip package (downloaded from JBPM/SourceForde project).
You have to unzip bpm-5.2.0.Final-installer-full.zip, then unzip org.drools.updatesite-5.3.1.Final-assembly.zip. You will see familiar Eclipse plugin structure – subdirectories like plugins and features, contentts.jar and artifacts.jar. Important is the site.xml, which make this directory a full blown local Eclipse update site. Add this to your Eclipse “Available Software Sites”.
Details: Help → Install New Software → Add it ot “Available Software Sites” → Local (button) → ..and now you will see “Drools and jBPM” - select JBoss jBMP Core and Task subcategories.
Currently in version 5.3.1 final.
Why it is not already available online? What is the issue?
Interestingly, stencil looks a bit differently then those in jPDL documentation:
2) The other one is from online update site “http://codehoop.com/bpmn2” - CodeHoop
BPMN2 Editor - 0.0.1.201109262118
BPMN2 Project Feature – 0.7.0.201109262118 (??)
Stencil looks a bit more differently then those in jPDL documentation or from previous plugin.
It contains much more stencils on the palette. Has this designer got full BPMN2 support?
There is no information about this plugin on company pages – http://codehoop.com/. No documentation.
Review of an early version: http://kverlaen.blogspot.com/2011/02/new-bpmn-20-eclipse-editor.html
3) There is actually a third one. Directly from Eclipse guys. Not (?) associated to JBoss project. It seems to be in an early stages of development. See:
Which one do you use?
At the moment I use two. For user perspective use the designer that have a full support to BPMN 2, this diagram I validate with the user. Then when is validate, I use BPMN 2 Process Editor (suppose option 1) to do the process that I can run inside jBPM.