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Found "java.util.ConcurrentModificationException" in logs during test

Hello,

 

During load test with 150 users on login logout flow of application , I found "java.util.ConcurrentModificationException" and 20% of vusers got failed to login into the system during this time.

 

Could anybody help on below:-

1. What this exception signified?

2. does it causes due to bad scenario designing.

3. It causes due to incapability of code to handle such concurrent load.

4. How I will be ensure , so that I could challenge development team to fix this issue.

 

Thanks.

 

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Absent Member.
Absent Member.

Hi,

Which protocol are you using?

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