🔧 Camunda 7.x - 8.8 to 8.9 Migration Project Report

Complete migration analysis
📅 2026-07-06 15:21:57
Camunda BPMN
8.9.0
Camunda SDK
8.5.0
Spring Boot
3.4.0
JDK
21
2
BPMN Processes
✅ Migrated
16
Source Nodes
✅ Parsed
16
Migrated Nodes
✅ Parsed
2
Delegates Referenced
✅ Found
0
Delegates in JAR
⚠️ 2 not in JAR
0
Spring Boot Workers
✅ Generated
0
Plain Java Workers
✅ Generated
4
Service Tasks
✅ Converted
1
User Tasks
⚠️ -1 No Forms
0
Script Tasks
⚠️ Need Workers
8
FEEL Expressions
✅ Converted
2
Forms
✅ Migrated
3
Critical/High Issues
🚨 Must Fix

📊 Complexity Distribution

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

📋 Executive Summary

📊
2 BPMN processes migrated successfully
☕
2 JavaDelegates referenced in BPMN → 0 found in JAR ⚠️ 2 missing
⚙️
0 Plain Java workers generated from available delegates
📝
0 Script Tasks across 0 processes
⚠️
3 critical/high and 1 medium issues
🎯
8 FEEL expressions converted from JUEL

📊 Process Complexity Distribution

BPMN File Score Process Complexity Nodes Service Script User Gateways Events Timer Cancel Comp Cond Trans Java
payment_process.bpmn 52 Payment process Medium 11 2 0 1 3 1 0 0 0 0 0 1
complete-user-tasks.bpmn 16 Complete Tasks Process Simple 5 2 0 0 0 0 0 0 0 0 0 0

☕ Delegate to Worker Mapping

Java Delegate Used In Plain Java Worker Spring Boot Worker
CAMUNDA — —
customerCreditHandling payment_process.bpmn→Charge customer credit — —
Summary: 2 delegates referenced in BPMN → 0 found in JAR → 0 Spring Boot workers + 0 Plain Java workers generated | ⚠️ 2 delegate(s) missing from JAR: customerCreditHandling, CAMUNDA

📦 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)

🔄 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
payment_process.bpmn 52 Payment requested PaymentRequestedStartEvent Start Payment requested PaymentRequestedStartEvent Start ✅ Preserved
Credit sufficient? CreditSufficientGateway Exclusive Gateway Credit sufficient? CreditSufficientGateway Exclusive Gateway ✅ Preserved
Gateway_1ae636o Exclusive Gateway Gateway_1ae636o Exclusive Gateway ✅ Preserved
Payment completed PaymentCompletedEndEvent End Payment completed PaymentCompletedEndEvent End ✅ Preserved
Charge customer credit ChargeCustomerCreditTask Service Task Charge customer credit ChargeCustomerCreditTask Service Task ✅ Preserved
Charge credit card ChargeCreditCardTask Service Task Charge credit card ChargeCreditCardTask Service Task ✅ Preserved
Invalid expiry date InvalidExpiryDateBoundaryEvent Boundary Event Invalid expiry date InvalidExpiryDateBoundaryEvent Boundary Event ✅ Preserved
Error resolved? ErrorResolvedGateway Exclusive Gateway Error resolved? ErrorResolvedGateway Exclusive Gateway ✅ Preserved
Payment failed PaymentFailedEndEvent End Payment failed PaymentFailedEndEvent End ✅ Preserved
Check payment data CheckPaymentDataTask User Task Check payment data CheckPaymentDataTask User Task ✅ Preserved
no credit card payment required NoCreditCardPaymentRequiredEvent Intermediate Throw no credit card payment required NoCreditCardPaymentRequiredEvent Intermediate Throw ✅ Preserved
complete-user-tasks.bpmn 16 User tasks completed Event_0gh9k10 End User tasks completed Event_0gh9k10 End ✅ Preserved
Get some user tasks Activity_1eup5j9 Service Task Get some user tasks Activity_1eup5j9 Service Task ✅ Preserved
Every hour StartEvent_1 Start Every hour StartEvent_1 Start ✅ Preserved
Complete user tasks Activity_1ayojby Service Task Complete user tasks Activity_1ayojby Service Task ✅ Preserved
TextAnnotation_1xj83is textAnnotation TextAnnotation_1xj83is textAnnotation ✅ Preserved
TOTAL NODES ANALYZED: 16
Source Nodes: 16 → Migrated Nodes: 16 Diff: 0
✅ Preserved  |  🔄 Changed  |  🔵 Transformed  |  🟠 Review Required  |  🔴 Verify Required  |  ❌ Removed  |  ✅ New Node Added
📄 payment_process.bpmn ⚠️ With Warnings Medium
Payment process Nodes: 11 Transforms: 0 Warnings: 2 Special: 0 Delegates: 1 ▼
Process ID: paymentProcess  |  Version: Camunda 8.9.0 Complexity: Medium Process Name: Payment process
📋 Java Delegate Usage & Worker Mapping
S.No Java Delegate Used In Task Plain Java Workers Spring Boot Workers
1 customerCreditHandling Charge customer credit — —
✅ Improvement Suggestions
[MEDIUM] 1 User Task(s) have no forms defined
💡 Create and attach Camunda 8 forms to these user tasks
🏗️ Camunda 8 Way: Use Camunda 8 Forms with zeebe:formDefinition
📋 User Task Form Association
Task ID Task Name Has Form
CheckPaymentDataTask Check payment data ❌ No
📋 Source BPMN
✅ Converted BPMN
# Parent Node ID Node Name Original Type Converted Type Status
1 -- (Start) PaymentRequestedStartEvent Payment requested Start Start ✅ Success
2 -- (Start) CreditSufficientGateway Credit sufficient? Exclusive Gateway Exclusive Gateway ✅ Success
3 -- (Start) Gateway_1ae636o Exclusive Gateway Exclusive Gateway ✅ Success
4 -- (Start) PaymentCompletedEndEvent Payment completed End End ✅ Success
5 -- (Start) ChargeCustomerCreditTask Charge customer credit Service Task Service Task ✅ Success
6 -- (Start) ChargeCreditCardTask Charge credit card Service Task Service Task ✅ Success
7 -- (Start) InvalidExpiryDateBoundaryEvent Invalid expiry date Boundary Event Boundary Event ✅ Success
8 -- (Start) ErrorResolvedGateway Error resolved? Exclusive Gateway Exclusive Gateway ✅ Success
9 -- (Start) PaymentFailedEndEvent Payment failed End End ✅ Success
10 -- (Start) CheckPaymentDataTask Check payment data User Task User Task ✅ Success
11 -- (Start) NoCreditCardPaymentRequiredEvent no credit card payment required Intermediate Throw Intermediate Throw ✅ Success
⚠️ Warnings - Action Required
📌 Unknown
Issue: Service Task 'Charge credit card' has no delegate
💡 Recommendation: Create a Zeebe Job Worker
📌 Unknown
Issue: User Task 'Check payment data' has no form
💡 Recommendation: Create and attach a Camunda 8 form
📄 complete-user-tasks.bpmn ⚠️ With Warnings Simple
Complete Tasks Process Nodes: 5 Transforms: 0 Warnings: 2 Special: 0 Delegates: 0 ▼
Process ID: CompleteTasksProcess  |  Version: Camunda 8.9.0 Complexity: Simple Process Name: Complete Tasks Process
📋 Source BPMN
✅ Converted BPMN
# Parent Node ID Node Name Original Type Converted Type Status
1 -- (Start) Event_0gh9k10 User tasks completed End End ✅ Success
2 -- (Start) Activity_1eup5j9 Get some user tasks Service Task Service Task ✅ Success
3 -- (Start) StartEvent_1 Every hour Start Start ✅ Success
4 -- (Start) Activity_1ayojby Complete user tasks Service Task Service Task ✅ Success
5 -- (Start) TextAnnotation_1xj83is textAnnotation textAnnotation ✅ Success
⚠️ Warnings - Action Required
📌 Unknown
Issue: Service Task 'Get some user tasks' has no delegate
💡 Recommendation: Create a Zeebe Job Worker
📌 Unknown
Issue: Service Task 'Complete user tasks' has no delegate
💡 Recommendation: Create a Zeebe Job Worker

📚 Appendix: Reference Documentation

Camunda 8.9 Official Documentation

Specific Migration Guides

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

Generated by Camunda Migration Tool

2026-07-06 15:21:57