# Metrics NPE query

**URL:** <https://forum.payara.fish/t/metrics-npe-query/72>\
**Category:** Technical Discussion\
**Created:** [October 8, 2021, 12:35pm UTC](https://forum.payara.fish/t/metrics-npe-query/72 "2021-10-08T12:35:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Priya](https://avatars.discourse-cdn.com/v4/letter/p/eada6e/32.png) [@Priya](https://forum.payara.fish/u/Priya)\
**Post date:** [October 8, 2021, 12:35pm UTC](https://forum.payara.fish/t/metrics-npe-query/72/1 "2021-10-08T12:35:10Z")

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**Question originally posted in Google Groups**

Hi

I’m happily using microprofile metrics.

However when my server has just started and my application has deployed and when I start posting requests I sometimes see

> Caused by: java.lang.NullPointerException  
> at fish.payara.microprofile.metrics.cdi.interceptor.AbstractInterceptor.getMetric(AbstractInterceptor.java:84)  
> at fish.payara.microprofile.metrics.cdi.interceptor.SimplyTimedInterceptor.getMetric(SimplyTimedInterceptor.java:56)  
> at fish.payara.microprofile.metrics.cdi.interceptor.AbstractInterceptor.apply(AbstractInterceptor.java:74)  
> at fish.payara.microprofile.metrics.cdi.interceptor.SimplyTimedInterceptor.proceedTimed(SimplyTimedInterceptor.java:72)  
> at fish.payara.microprofile.metrics.cdi.interceptor.SimplyTimedInterceptor.applyInterceptor(SimplyTimedInterceptor.java:64)  
> at fish.payara.microprofile.metrics.cdi.interceptor.AbstractInterceptor.preInterceptor(AbstractInterceptor.java:109)  
> at fish.payara.microprofile.metrics.cdi.interceptor.AbstractInterceptor.methodInvocation(AbstractInterceptor.java:94)

This only happens during startup so it looks like some race condition.

Could it be that metrics has not been fully initialized when my applications starts running?

I tried to reproduce this in a simple application but without success. Usually the problem with race conditions ☹

I hope you can help.

regards,

Hans

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**Author:** ![hpi](https://avatars.discourse-cdn.com/v4/letter/h/a88e4f/32.png) [@hpi](https://forum.payara.fish/u/hpi)\
**Post date:** [October 21, 2021, 6:25pm UTC](https://forum.payara.fish/t/metrics-npe-query/72/3 "2021-10-21T18:25:16Z")

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Thanks for your response. But would this account for the NPE? I would not expect so.