# Exception when setting flowable.historyLevel=NONE

**URL:** <https://forum.flowable.org/t/exception-when-setting-flowable-historylevel-none/7029>\
**Category:** Flowable Engine\
**Created:** [November 5, 2020, 9:48am UTC](https://forum.flowable.org/t/exception-when-setting-flowable-historylevel-none/7029 "2020-11-05T09:48:35Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![ofaklintra](https://avatars.discourse-cdn.com/v4/letter/o/3ec8ea/32.png) [@ofaklintra](https://forum.flowable.org/u/ofaklintra)\
**Post date:** [November 5, 2020, 9:48am UTC](https://forum.flowable.org/t/exception-when-setting-flowable-historylevel-none/7029/1 "2020-11-05T09:48:35Z")

</div>

Hi,

I am trying to configure the process engine to have a history level of NONE.

In the application.properties file I have set flowable.historyLevel=NONE.

But now I experience the exception below when some of the activities are completed. Any ideas why this should be different when “flowable.historyLevel=NONE” ? And is there a better way to configure flowable to not produce history logs ?

I am running flowable 6.5.0

```
java.lang.NullPointerException
	at org.flowable.engine.impl.history.DefaultHistoryManager.recordActivityEnd(DefaultHistoryManager.java:186)
	at org.flowable.engine.impl.persistence.entity.ActivityInstanceEntityManagerImpl.recordActivityEnd(ActivityInstanceEntityManagerImpl.java:101)
	at org.flowable.engine.impl.agenda.TakeOutgoingSequenceFlowsOperation.handleActivityEnd(TakeOutgoingSequenceFlowsOperation.java:120)
	at org.flowable.engine.impl.agenda.TakeOutgoingSequenceFlowsOperation.handleFlowNode(TakeOutgoingSequenceFlowsOperation.java:95)
	at org.flowable.engine.impl.agenda.TakeOutgoingSequenceFlowsOperation.run(TakeOutgoingSequenceFlowsOperation.java:88)
	at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperation(CommandInvoker.java:88)
	at org.flowable.engine.impl.interceptor.CommandInvoker.executeOperations(CommandInvoker.java:72)
	at org.flowable.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:56)
	at org.flowable.engine.impl.interceptor.BpmnOverrideContextInterceptor.execute(BpmnOverrideContextInterceptor.java:25)
	at org.flowable.common.engine.impl.interceptor.TransactionContextInterceptor.execute(TransactionContextInterceptor.java:53)
	at org.flowable.common.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:72)
	at org.flowable.common.spring.SpringTransactionInterceptor.lambda$execute$0(SpringTransactionInterceptor.java:56)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140)
	at org.flowable.common.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:56)
	at org.flowable.common.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
	at org.flowable.common.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:56)
	at org.flowable.common.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:51)
	at org.flowable.job.service.impl.asyncexecutor.ExecuteAsyncRunnable.executeJob(ExecuteAsyncRunnable.java:128)
	at org.flowable.job.service.impl.asyncexecutor.ExecuteAsyncRunnable.run(ExecuteAsyncRunnable.java:116)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
```

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<div class="post-metadata">

**Author:** ![ofaklintra](https://avatars.discourse-cdn.com/v4/letter/o/3ec8ea/32.png) [@ofaklintra](https://forum.flowable.org/u/ofaklintra)\
**Post date:** [November 5, 2020, 10:47am UTC](https://forum.flowable.org/t/exception-when-setting-flowable-historylevel-none/7029/2 "2020-11-05T10:47:05Z")

</div>

And why does flowable even try to record an activity in the history if I have set historyLevel=NONE ?

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<div class="post-metadata">

**Author:** ![dbmalkovsky](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/dbmalkovsky/32/31_2.png) [@dbmalkovsky](https://forum.flowable.org/u/dbmalkovsky)\
**Post date:** [November 5, 2020, 7:07pm UTC](https://forum.flowable.org/t/exception-when-setting-flowable-historylevel-none/7029/3 "2020-11-05T19:07:48Z")

</div>

Looking at the code and the enum definition, try `none` instead of `NONE`. See `org.flowable.common.engine.impl.history.HistoryLevel`.

The code is trying to determine what level of history to record usiing the `isAtLeast` method in the above specified file.

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<div class="post-metadata">

**Author:** ![ofaklintra](https://avatars.discourse-cdn.com/v4/letter/o/3ec8ea/32.png) [@ofaklintra](https://forum.flowable.org/u/ofaklintra)\
**Post date:** [November 6, 2020, 10:50am UTC](https://forum.flowable.org/t/exception-when-setting-flowable-historylevel-none/7029/4 "2020-11-06T10:50:41Z")

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> [@dbmalkovsky](#):
>
> The code is trying to determine what level of history to record usiing the `isAtLeast` method in the above specified file.

Thank you for the hint. I will try to set the value to “none”

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<div class="post-metadata">

**Author:** ![dbmalkovsky](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/dbmalkovsky/32/31_2.png) [@dbmalkovsky](https://forum.flowable.org/u/dbmalkovsky)\
**Post date:** [November 7, 2020, 12:36pm UTC](https://forum.flowable.org/t/exception-when-setting-flowable-historylevel-none/7029/5 "2020-11-07T12:36:31Z")

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Actually looking at the [documentation](https://flowable.com/open-source/docs/bpmn/ch05a-Spring-Boot/#flowable-application-properties) I think the real property should be:

```
 flowable.history-level=NONE
```