Exception caught:
  File "/export/shm0/workspace/EXEC_0/build/.pantsenv/bin/pants", line 9, in <module>
    load_entry_point('pantsbuild.pants==0.0.48', 'console_scripts', 'pants')()
  File "/export/shm0/workspace/EXEC_0/build/.pantsenv/lib/python2.7/site-packages/pants/bin/pants_exe.py", line 85, in main
    _run(exiter)
  File "/export/shm0/workspace/EXEC_0/build/.pantsenv/lib/python2.7/site-packages/pants/bin/pants_exe.py", line 76, in _run
    result = goal_runner.run()
  File "/export/shm0/workspace/EXEC_0/build/.pantsenv/lib/python2.7/site-packages/pants/bin/goal_runner.py", line 339, in run
    result = self._execute_engine()
  File "/export/shm0/workspace/EXEC_0/build/.pantsenv/lib/python2.7/site-packages/pants/bin/goal_runner.py", line 328, in _execute_engine
    result = engine.execute(self._context, self._goals)
  File "/export/shm0/workspace/EXEC_0/build/.pantsenv/lib/python2.7/site-packages/pants/engine/engine.py", line 26, in execute
    self.attempt(context, goals)
  File "/export/shm0/workspace/EXEC_0/build/.pantsenv/lib/python2.7/site-packages/pants/engine/round_engine.py", line 218, in attempt
    goal_executor.attempt(explain)
  File "/export/shm0/workspace/EXEC_0/build/.pantsenv/lib/python2.7/site-packages/pants/engine/round_engine.py", line 47, in attempt
    task.execute()
  File "/export/shm0/workspace/EXEC_0/build/.pantsenv/lib/python2.7/site-packages/pants/backend/jvm/tasks/bundle_create.py", line 68, in execute
    basedir = self.bundle(app)
  File "/export/shm0/workspace/EXEC_0/build/.pantsenv/lib/python2.7/site-packages/pants/backend/jvm/tasks/bundle_create.py", line 134, in bundle
    for path, coordinate in self.list_external_jar_dependencies(app.binary):
  File "/export/shm0/workspace/EXEC_0/build/.pantsenv/lib/python2.7/site-packages/pants/backend/jvm/tasks/jvm_binary_task.py", line 61, in list_external_jar_dependencies
    classpath_entries = classpath_products.get_artifact_classpath_entries_for_targets([binary])

Exception message: 'UnionProducts' object has no attribute 'get_artifact_classpath_entries_for_targets'