IdStory Identity Manager

Beware that this flyway issue can appear randomly. For example application without this configuration works perfectly and after I deployed new version of my module the application doesn't start because:

Comparison method violates its general contract!

Why you want remove this configuration option?

@kopro In IdM 10 flyway go upgraded. As a part of creating new IdM installation tutorial I want check if this bug still happening.

As @kopro wrote, this error occurred very randomly, so your testing (without error) may not confirm that the error no longer occurs.

I tested upgrading idm from v 9.4.0.
Before every test I droped database and clear /idm directory in webapps. After v 9.4.0 started I created a test user.
Tomcat didn't start with "-Djava.util.Arrays.useLegacyMergeSort=true".

• test1
  9.4.0 -> 9.7.16 Fail
  9.7.16 -> 10.2.0 success
  After successful deploy of 9.4.0 I try deploy v. 9.7.16. It fails with
  

  Error creating bean with name 'flywayCore' defined in class path resource [eu/bcvsolutions/idm/core/config/flyway/CoreFlywayConfig.class]: 
  Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: Comparison method violates its general contract!
  

  
  Then I try deploy v. 10.2.0 and it was successful.

• test2 - tested 4x times
  9.4.0 -> 9.7.16 Fail
  9.7.16 -> 10.3.1 success
  After successful deploy of 9.4.0 I try deploy v. 9.7.16. It fails with
  

  Error creating bean with name 'flywayCore' defined in class path resource [eu/bcvsolutions/idm/core/config/flyway/CoreFlywayConfig.class]: 
  Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: Comparison method violates its general contract!
  

  
  Then I try deploy newest version of IdM - 10.3.1 and it was successful.

1. test3
   -> 9.7.16 success
   I try deploy v 9.7.16 to be sure that 9.7.x will ever deploy on my test. And it was successful.

1. test4
   9.4.0 -> 10.3.1 success
   After successful deploy of 9.4.0 I try deploy directly v. 10.3.1 and it was successful.

1. test5
   9.4.0 -> 9.7.16 success
   To check everything I tried deploy with legacy merge sort option in tomcat.
   After successful deploy of 9.4.0 I try deploy v. 9.7.16. it was successful.

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It looks like that in new flyway was issue with flywayCore fixed.

Awesome! I agree, this known issue can be removed, good job.