That was to be expected anyway, Microsoft Games division rather favored rewriting it into C++ than creating a Java compiler for each platform they would like to sell the game on.
If Managed Direct X and XNA had an uphill battle against WinDev, where they even suggested to move from XNA into DirectXTK, as if the target audience would be the same, there isn't much Java love to expect from the games division.
The java backend is doomed from the onset. Then why is the bedrock edition not better? It’s a simple game that a small team of competent engineers should have done in less than two years. Unless they actually make a modding API for the bedrock edition, the bedrock edition will be little more than a footnote. The java edition will remain the most relevant set of releases until mods are officially supported in bedrock.