You must create a Behavior Pack . This defines how an entity moves, what it drops, and its health.

Create a new Bedrock model project, import your project, set all pivot points to zero, and select File > Export > Bedrock Geometry . 3. Converting Resource Packs (Online Tools)

: A web-based tool primarily used for converting Java resource packs to Bedrock .mcpack files , which can then be bundled into an addon. Manual Porting & Resource Conversion

1/5 (Does not effectively exist). Final Score for "Manual Porting Workflow": 4/5 (Achievable with the right tools, but time-consuming).

The "best" way to convert JAR to MCADDON is to use the JAR as a reference , not a source file. Use Bridge. to build a new Bedrock add-on that mimics the Java mod, rather than trying to force the Java code to run on Bedrock.