JobHandle.Complete() never runs the execute in the job

Attempting to complete a job immediately after scheduling. The log outputs "before: false" and "after: true" but the execute is never called and never logs.

Code (CSharp):

1. struct StartJumpJob : ICollisionEventsJob {
2.   [ReadOnly] public ComponentDataFromEntity<JumpInput> JumpInputGroup;
3.   [ReadOnly] public ComponentDataFromEntity<Ground> GroundGroup;
4.  
5.   [WriteOnly] public EntityCommandBuffer CommandBuffer;
6.  
7.   public void Execute (CollisionEvent collisionEvent) {
8.     Debug.Log("Execute!");
9.     Entity entityA = collisionEvent.Entities.EntityA;
10.     Entity entityB = collisionEvent.Entities.EntityB;
11.  
12.     bool isBodyAPlayer = JumpInputGroup.Exists(entityA);
13.     bool isBodyBPlayer = JumpInputGroup.Exists(entityA);
14.  
15.     bool isBodyAGround = GroundGroup.Exists(entityA);
16.     bool isBodyBGround = GroundGroup.Exists(entityB);
17.  
18.     if (isBodyAPlayer && isBodyBGround)
19.       CommandBuffer.AddComponent<Jump>(entityA);
20.  
21.     if (isBodyAGround && isBodyBPlayer)
22.       CommandBuffer.AddComponent<Jump>(entityB);
23.   }
24. }
25.  
26. protected override JobHandle OnUpdate (JobHandle inputDeps) {
27.   var jobHandle = new StartJumpJob {
28.     JumpInputGroup = GetComponentDataFromEntity<JumpInput>(true),
29.     GroundGroup = GetComponentDataFromEntity<Ground>(true),
30.     CommandBuffer = m_EntityCommandBufferSystem.CreateCommandBuffer(),
31.   }.Schedule(m_StepPhysicsWorldSystem.Simulation,
32.                 ref m_BuildPhysicsWorldSystem.PhysicsWorld, inputDeps);
33.  
34.   m_EntityCommandBufferSystem.AddJobHandleForProducer(jobHandle);
35.  
36.   Debug.Log("before: " + jobHandle.IsCompleted);
37.   jobHandle.Complete();
38.   Debug.Log("after: " + jobHandle.IsCompleted);
39.  
40.   return inputDeps;
41. }

 

I assume that would just mean there are no collision events

 

apparently that's not default behavior...thanks