OSGI, TaskListener not added as Activiti service to delegate cache

Description

Cannot bind or unbind service to delegate cache, when using TaskListener interface.
JavaDelegate works fine in osgi with delegate expression.

Could this solution solve the problem or is there something else needed with BlueprintContextELResolver? Because the blueprint with the
<service ref="something" interface="org.activiti.engine.delegate.TaskListener" />
in my case is not accepted and binded.

After this i still get:
Exception while invoking TaskListener: Unknown property used in expression: ${expression}

Environment

None

Status

Assignee

Unassigned

Reporter

svenm

Components

Affects versions

5.17

Priority

High
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