This issue was caused by the update of libqdox2-java. Reverting to the version 2.0~M3-3 in stretch fixes this issue.
- Bug#871340: avro-java: FTBFS: [[1;31mERROR[m] Failed to e... Lucas Nussbaum
- Bug#871340: avro-java: FTBFS: [[1;31mERROR[m] Failed... Emmanuel Bourg