internalConnectionsFromCgmesTest() raises NullPointerException after implementation of terminal.isConnected()

[etiennehomer]

• Do you want to request a feature or report a bug?
  Report a bug

• What is the current behavior?
  The test internalConnectionsFromCgmesTest() in powsybl-network-store/network-store-integration-test/src/test/java/com/powsybl/network/store/integration/NetworkStoreIT.java raises NullPointerException after implementation of terminal.isConnected(). So the test was temporarily ignored.

• If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem
  Unignore this test, run a maven build and the test will raise an error.

• What is the expected behavior?
  The test passes.

• Please tell us about your environment:

  • PowSyBl Version:3.4.0
  • OS Version: Fedora 29