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For hacking on the OTDT the following steps should get you going. Note that headless build and steps for a release are described at OTBuilding.

  • Install a recent Eclipse Package (recommended IDE for Committers).
To work on the current master of Object Teams, you may need the latest development build.
When using a an older IDE, consider switching to the corresponding maintenance branch from the OT git repo.
Since installing the OTDT already provides all dependencies, compiling in the IDE should work out of the box.
  • create jars for the runtime environment using these jar descriptions (will appear in org.eclipse.objectteams.otdt/lib):
    • org.eclipse.objectteams.runtime/otre_min.jardesc
    • org.eclipse.objectteams.otre/otre_agent.jardesc
    • org.eclipse.objectteams.otredyn/otre_agent.jardesc
Remember to repeat this step when any relevant class has been edited
deploy / export plug-ins and features
Use the wizard Export > Plug-in Development > Deployable features and select these features:
  • org.eclipse.objectteams.otdt -- the umbrella feature for the IDE
  • org.eclipse.objectteams.otdt.core.patch -- patch feature containing the OT/J version of JDT/Core
  • org.eclipse.objectteams.otequinox -- OT/J runtime and integration for Equinox
building the command line compiler
You may simply use the org.eclipse.jdt.core_3.X.Y.v_OTDT_abc.jar produced by the above export.
  • Alternatively, for building the minimal ecotj.jar run org.eclipse.jdt.core/scripts/export-ecj.xml as Ant Build.
For details regarding export-ecj.xml see also the thread at
There are lots of individual JUnit suites, and aggregate suites, typically called s.t. like TestAll.
  • The central suite for OT/J is org.eclipse.objectteams.otdt.tests.otjld.AllTests
  • Each test suite can be invoked using Run As ... > JUnit Plug-in Test
  • For those tests not including any UI test launch can be optimized on the Main tab of the launch configuration by selecting Program to Run > Run an application > [No Application] - Headless Mode
projects and dependencies
The full list of plug-ins and features including dependencies can be found in /releng/map/

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