NullPointerException for "Update DAM Asset" workflow and Could not start custom workflows
AEM 6.3:
I tried to start out of the box "Update DAM Asset" workflow and it seemed to go fine until I saw following in the logs.
3.12.2017 16:14:05.573 *ERROR* [sling-threadpool-aade99ba-9e87-41c1-bb3f-c30f2b2d3783-(apache-sling-job-thread-pool)-727-Granite Transient Workflow Queue(com/adobe/granite/workflow/transient/job/etc/workflow/models/dam/update_asset/jcr_content/model)] com.adobe.granite.workflow.core.job.JobHandler Error processing workflow job
java.lang.NullPointerException: null
at com.adobe.granite.workflow.core.jcr.WorkflowManager.getSimpleModelId(WorkflowManager.java:1088)
at com.adobe.granite.workflow.core.jcr.WorkflowManager.createWorkflowInstance(WorkflowManager.java:298)
at com.adobe.granite.workflow.core.job.JobHandler.process(JobHandler.java:159)
at org.apache.sling.event.impl.jobs.JobConsumerManager$JobConsumerWrapper.process(JobConsumerManager.java:500)
at org.apache.sling.event.impl.jobs.queues.JobQueueImpl.startJob(JobQueueImpl.java:291)
at org.apache.sling.event.impl.jobs.queues.JobQueueImpl.access$100(JobQueueImpl.java:58)
at org.apache.sling.event.impl.jobs.queues.JobQueueImpl$1.run(JobQueueImpl.java:227)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
13.12.2017 16:14:07.601 *ERROR* [sling-threadpool-aade99ba-9e87-41c1-bb3f-c30f2b2d3783-(apache-sling-job-thread-pool)-728-Granite Transient Workflow Queue(com/adobe/granite/workflow/transient/job/etc/workflow/models/dam/update_asset/jcr_content/model)] com.adobe.granite.workflow.core.job.JobHandler Error processing workflow job
java.lang.NullPointerException: null
at com.adobe.granite.workflow.core.jcr.WorkflowManager.getSimpleModelId(WorkflowManager.java:1088)
at com.adobe.granite.workflow.core.jcr.WorkflowManager.createWorkflowInstance(WorkflowManager.java:298)
at com.adobe.granite.workflow.core.job.JobHandler.process(JobHandler.java:159)
at org.apache.sling.event.impl.jobs.JobConsumerManager$JobConsumerWrapper.process(JobConsumerManager.java:500)
at org.apache.sling.event.impl.jobs.queues.JobQueueImpl.startJob(JobQueueImpl.java:291)
at org.apache.sling.event.impl.jobs.queues.JobQueueImpl.access$100(JobQueueImpl.java:58)
at org.apache.sling.event.impl.jobs.queues.JobQueueImpl$1.run(JobQueueImpl.java:227)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Custom application workflows are giving "Could not start workflow" and workflows are not even starting.
I logged in as "adminstrator" and has all the permissions on workflow nodes.
Thanks,
Sri