thanks i see. although i dont think it’s clearly stated

[tw-mbp-yic pants (master)]$ ./pants options | grep test | grep junit | grep options
WARN] /Users/yic/workspace/pants/src/python/pants/core_tasks/explain_options_task.py:92: DeprecationWarning: DEPRECATED: scope archive-fetcher will be removed in version 1.2.0.
  Use scope go-fetchers instead (options: pythonpath, pants_distdir, pants_bootstrapdir, print_exception_stacktrace, pants_workdir, pants_configdir, pants_supportdir, pants_ignore, backend_packages)
  self.context.options.for_scope(scope)

WARN] /Users/yic/workspace/pants/src/python/pants/core_tasks/explain_options_task.py:92: DeprecationWarning: DEPRECATED: scope archive-fetcher will be removed in version 1.2.0.
  Use scope go-archive-retriever instead (options: pythonpath, pants_distdir, pants_bootstrapdir, print_exception_stacktrace, pants_workdir, pants_configdir, pants_supportdir, pants_ignore, backend_packages)
  self.context.options.for_scope(scope)

jvm.test.junit.options = ['-Djava.awt.headless=true', '-Xmx1g', '-XX:MaxPermSize=256m', '-XX:-UseSplitVerifier'] (from CONFIG)
test.junit.coverage_jvm_options = [] (from NONE)
test.junit.jvm_options = ['-Xmx1g', '-XX:MaxPermSize=256m'] (from CONFIG)