πŸ”§ Camunda 7.x - 8.8 to 8.9 Migration Project Report

Complete migration analysis
πŸ“… 2026-07-06 15:23:18
Camunda BPMN
8.9.0
Camunda SDK
8.5.0
Spring Boot
3.4.0
JDK
21
1
BPMN Processes
βœ… Migrated
9
Source Nodes
βœ… Parsed
9
Migrated Nodes
βœ… Parsed
3
Delegates Referenced
βœ… Found
0
Delegates in JAR
⚠️ 3 not in JAR
0
Spring Boot Workers
βœ… Generated
0
Plain Java Workers
βœ… Generated
2
Service Tasks
βœ… Converted
7
User Tasks
⚠️ 7 No Forms
0
Script Tasks
⚠️ Need Workers
6
FEEL Expressions
βœ… Converted
0
Forms
βœ… Migrated
0
Critical/High Issues
🚨 Must Fix

πŸ“Š Complexity Distribution

Simple 0
Medium 1
Complex 0
Very Complex 0
Critical 0
Very Critical 0
Extreme Critical 0

πŸ“‹ Executive Summary

πŸ“Š
1 BPMN processes migrated successfully
β˜•
3 JavaDelegates referenced in BPMN β†’ 0 found in JAR ⚠️ 3 missing
βš™οΈ
0 Plain Java workers generated from available delegates
πŸ“
0 Script Tasks across 0 processes
⚠️
0 critical/high and 2 medium issues
🎯
6 FEEL expressions converted from JUEL

πŸ“Š Process Complexity Distribution

BPMN File Score Process Complexity Nodes Service Script User Gateways Events Timer Cancel Comp Cond Trans Java
twitter.bpmn 44 TwitterDemoProcess Medium 9 2 0 2 1 1 0 0 0 0 0 2

β˜• Delegate to Worker Mapping

Java Delegate Used In Plain Java Worker Spring Boot Worker
CAMUNDA β€” β€”
twitter.RejectionNotificationDelegate twitter.bpmn→Send rejection notification — —
publish-tweet twitter.bpmn→Publish on Twitter — —
Summary: 3 delegates referenced in BPMN β†’ 0 found in JAR β†’ 0 Spring Boot workers + 0 Plain Java workers generated | ⚠️ 3 delegate(s) missing from JAR: CAMUNDA, RejectionNotificationDelegate, publish-tweet

πŸ“¦ JAR Summary

Category Count Description
Plain Java Individual JARs 0 None generated
Spring Boot Individual JARs 0 None generated
Plain Java Group JAR 0 None generated
Spring Boot Group JAR 0 None generated
ScriptWorker Individual JARs 0 None generated
TOTAL JARs 0 All JAR files generated
Deployment Options: Microservice (0 JARs) | Monolith (Spring Boot: 0 JAR) | Monolith (Plain Java: 0 JAR)

πŸ”„ Transformation Analysis - Actual BPMN Nodes

Note: All BPMN nodes are listed.

BPMN File Name Score Source Node Source ID Source Type Migrated Node Migrated ID Migrated Type Status
twitter.bpmn 44 New Tweet written start_event_new_tweet Start New Tweet written start_event_new_tweet Start βœ… Preserved
Tweet approved? gateway_approved Exclusive Gateway Tweet approved? gateway_approved Exclusive Gateway βœ… Preserved
Review tweet user_task_review_tweet User Task Review tweet user_task_review_tweet User Task βœ… Preserved
Send rejection notification service_task_send_rejection_notification Service Task Send rejection notification service_task_send_rejection_notification Service Task βœ… Preserved
Tweet rejected end_event_tweet_rejected End Tweet rejected end_event_tweet_rejected End βœ… Preserved
Tweet duplicated boundary_event_tweet_duplicated Boundary Event Tweet duplicated boundary_event_tweet_duplicated Boundary Event βœ… Preserved
Publish on Twitter service_task_publish_on_twitter Service Task Publish on Twitter service_task_publish_on_twitter Service Task βœ… Preserved
Tweet published end_event_tweet_published End Tweet published end_event_tweet_published End βœ… Preserved
Handle duplicate tweet user_task_handle_duplicate User Task Handle duplicate tweet user_task_handle_duplicate User Task βœ… Preserved
TOTAL NODES ANALYZED: 9
Source Nodes: 9 β†’ Migrated Nodes: 9 Diff: 0
βœ… Preserved  |  πŸ”„ Changed  |  πŸ”΅ Transformed  |  🟠 Review Required  |  πŸ”΄ Verify Required  |  ❌ Removed  |  βœ… New Node Added
πŸ“„ twitter.bpmn ⚠️ With Warnings Medium
TwitterDemoProcess Nodes: 9 Transforms: 0 Warnings: 2 Special: 0 Delegates: 2 β–Ό
Process ID: TwitterDemoProcess  |  Version: Camunda 8.9.0 Complexity: Medium Process Name: TwitterDemoProcess
πŸ“‹ Java Delegate Usage & Worker Mapping
S.No Java Delegate Used In Task Plain Java Workers Spring Boot Workers
1 twitter.RejectionNotificationDelegate Send rejection notification β€” β€”
2 publish-tweet Publish on Twitter β€” β€”
βœ… Improvement Suggestions
[MEDIUM] 2 User Task(s) have no forms defined
πŸ’‘ Create and attach Camunda 8 forms to these user tasks
πŸ—οΈ Camunda 8 Way: Use Camunda 8 Forms with zeebe:formDefinition
πŸ“‹ User Task Form Association
Task ID Task Name Has Form
user_task_review_tweet Review tweet ❌ No
user_task_handle_duplicate Handle duplicate tweet ❌ No
πŸ“‹ Source BPMN
βœ… Converted BPMN
# Parent Node ID Node Name Original Type Converted Type Status
1 -- (Start) start_event_new_tweet New Tweet written Start Start βœ… Success
2 -- (Start) gateway_approved Tweet approved? Exclusive Gateway Exclusive Gateway βœ… Success
3 -- (Start) user_task_review_tweet Review tweet User Task User Task βœ… Success
4 -- (Start) service_task_send_rejection_notification Send rejection notification Service Task Service Task βœ… Success
5 -- (Start) end_event_tweet_rejected Tweet rejected End End βœ… Success
6 -- (Start) boundary_event_tweet_duplicated Tweet duplicated Boundary Event Boundary Event βœ… Success
7 -- (Start) service_task_publish_on_twitter Publish on Twitter Service Task Service Task βœ… Success
8 -- (Start) end_event_tweet_published Tweet published End End βœ… Success
9 -- (Start) user_task_handle_duplicate Handle duplicate tweet User Task User Task βœ… Success
⚠️ Warnings - Action Required
πŸ“Œ Unknown
Issue: User Task 'Review tweet' has no form
πŸ’‘ Recommendation: Create and attach a Camunda 8 form
πŸ“Œ Unknown
Issue: User Task 'Handle duplicate tweet' has no form
πŸ’‘ Recommendation: Create and attach a Camunda 8 form

πŸ“š Appendix: Reference Documentation

Camunda 8.9 Official Documentation

Specific Migration Guides

πŸ’‘ All links are to the official Camunda 8.9 documentation. For the most up-to-date information, please refer to the official documentation.