There one thing worth to add before the merge. Proposer service schedules each slot in current implementation, it should be linked to committees transition to only produce blocks for slots it assigned to.
Coverage increased (+0.2%) to 56.371% when pulling 05ecebbd0fddb1b39b7b19ca2b9cba8c959f82a7 on sharding/committees into 89e417c8276e81a10fe7741bd426ddca5af8996a on research/sharding.
There one thing worth to add before the merge. Proposer service schedules each slot in current implementation, it should be linked to committees transition to only produce blocks for slots it assigned to.
Resolves https://github.com/ethereum/ethereumj/issues/1142