NullPointerException: When using Camunda Job Workers in Spring boot Application

[pavkprasadTR]

NullPointerException: When using Camunda Job Workers in Spring boot Application

Application is started but when executing the use case where job worker is involved in the process getting NullPointerException by using Camunda Job Workers in Spring boot Application.

Already Gone through the the ticket #461 and applied the solution but getting the issue.

Applied solution:

tasks.withType(JavaCompile) {
options.compilerArgs << '-parameters'
}

To Reproduce

Write Camunda Job workers in spring boot application with below stack
Spring boot 3.2.2
Camunda 8.4.0
Java 17

Expected behavior

No ERROR Should thrown when executing the use cases.

Log/Stacktrace

java.lang.NullPointerException: Cannot load from object array because "parameterNames" is null
	at io.camunda.zeebe.spring.client.bean.MethodInfo.getParameters(MethodInfo.java:72) ~[spring-client-zeebe-8.4.0.jar:8.4.0]
	at io.camunda.zeebe.spring.client.jobhandling.JobHandlerInvokingSpringBeans.handle(JobHandlerInvokingSpringBeans.java:48) ~[spring-client-zeebe-8.4.0.jar:8.4.0]
	at io.camunda.zeebe.client.impl.worker.JobRunnableFactoryImpl.executeJob(JobRunnableFactoryImpl.java:45) ~[zeebe-client-java-8.4.0.jar:8.4.0]
	at io.camunda.zeebe.client.impl.worker.JobRunnableFactoryImpl.lambda$create$0(JobRunnableFactoryImpl.java:40) ~[zeebe-client-java-8.4.0.jar:8.4.0]
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) ~[na:na]
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317) ~[na:na]
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[na:na]
	at java.base/java.lang.Thread.run(Thread.java:1583) ~[na:na]

2024-12-16T18:17:21.158+05:30  WARN 41484 --- [pool-2-thread-1] io.camunda.zeebe.client.job.worker       : Worker eamil failed to handle job with key 2251799815653826 of type email, sending fail command to broker

java.lang.NullPointerException: Cannot load from object array because "parameterNames" is null
	at io.camunda.zeebe.spring.client.bean.MethodInfo.getParameters(MethodInfo.java:72) ~[spring-client-zeebe-8.4.0.jar:8.4.0]
	at io.camunda.zeebe.spring.client.jobhandling.JobHandlerInvokingSpringBeans.handle(JobHandlerInvokingSpringBeans.java:48) ~[spring-client-zeebe-8.4.0.jar:8.4.0]
	at io.camunda.zeebe.client.impl.worker.JobRunnableFactoryImpl.executeJob(JobRunnableFactoryImpl.java:45) ~[zeebe-client-java-8.4.0.jar:8.4.0]
	at io.camunda.zeebe.client.impl.worker.JobRunnableFactoryImpl.lambda$create$0(JobRunnableFactoryImpl.java:40) ~[zeebe-client-java-8.4.0.jar:8.4.0]
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) ~[na:na]
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317) ~[na:na]
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[na:na]
	at java.base/java.lang.Thread.run(Thread.java:1583) ~[na:na]

2024-12-16T18:17:21.171+05:30  WARN 41484 --- [pool-2-thread-1] io.camunda.zeebe.client.job.worker       : Worker eamil failed to handle job with key 2251799815653826 of type email, sending fail command to broker

java.lang.NullPointerException: Cannot load from object array because "parameterNames" is null
	at io.camunda.zeebe.spring.client.bean.MethodInfo.getParameters(MethodInfo.java:72) ~[spring-client-zeebe-8.4.0.jar:8.4.0]
	at io.camunda.zeebe.spring.client.jobhandling.JobHandlerInvokingSpringBeans.handle(JobHandlerInvokingSpringBeans.java:48) ~[spring-client-zeebe-8.4.0.jar:8.4.0]
	at io.camunda.zeebe.client.impl.worker.JobRunnableFactoryImpl.executeJob(JobRunnableFactoryImpl.java:45) ~[zeebe-client-java-8.4.0.jar:8.4.0]
	at io.camunda.zeebe.client.impl.worker.JobRunnableFactoryImpl.lambda$create$0(JobRunnableFactoryImpl.java:40) ~[zeebe-client-java-8.4.0.jar:8.4.0]
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) ~[na:na]
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317) ~[na:na]
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[na:na]
	at java.base/java.lang.Thread.run(Thread.java:1583) ~[na:na]

Environment:

• OS: Windows
• Deployment: SM (Self Managed)
• Spring-Zeebe Version: 8.4.0
• SpringBoot Version: 3.2.2
• Configuration:
  zeebe.client.broker.gatewayAddress=127.0.0.1:26500
  zeebe.client.security.plaintext=true

zeebe.client.worker.threads=3
zeebe.client.worker.maxJobsActive=20