message: android: reduce memory consumption by gradle builds
diff: @@ -231,7 +231,10 @@ class Builder:
  cmd += [ "-D%s='%s'" % (k, v) for (k, v) in cmake_vars.items() if v is not None]
  cmd.append(self.opencvdir)
  execute(cmd)
  - execute([self.ninja_path, "install" if self.debug else "install/strip"])
  + # full parallelism for C++ compilation tasks
  + execute([self.ninja_path, "opencv_modules"])
  + # limit parallelism for Gradle steps (avoid huge memory consumption)
  + execute([self.ninja_path, '-j3', "install" if self.debug else "install/strip"])
  def build_javadoc(self):
  classpaths = []
  