Hm, it’s reliably reproducible here using the Android emulator and testing different Android versions (8.1 and 9.0).
I’ve attached a logcat.txt from a failing test run. logcat.txt
Maybe that helps in finding the cause of the failure.
I typically build davx5 on Linux, where ./gradlew check passes successfully.
Today I setup a test environment on Windows 10, but I get a test suite failure related to encoding it seems. The failing test is testVCard3FieldsAsVCard3
I’m not sure if building on Windows is supported, but I thought I report this issue anyway
Thanks. Maybe some parts depend on the system locale instead of always using UTF-8?