Thanks,

I might build this from source if I have time, that being said what are the problems that arise if I just don't reindex Lucene?

On 1/19/26 8:10 AM, Benoit TELLIER wrote:
2026-01-16T22:01:20.244149762Z main INFO Configuration 
org.apache.logging.log4j.core.config.DefaultConfiguration@29215f06 
stopped.2026-01-16T22:01:20.646022685Z main ERROR An exception occurred 
processing Appender Console 
org.apache.logging.log4j.core.appender.AppenderLoggingException: 
java.lang.Error: Trampoline must not be defined by the bootstrap classloader
Excuse me I thought that "Trampoline must not be defined by the bootstrap 
classloader" thing was a joke. This log4j error makes no sense to me.

But it is not the core of the issue.

The main issue indeed is

Error class org.apache.james.mailbox.exception.MailboxException while executing 
command:Not implementedWhich corresponds to 
mailbox/tools/indexer/src/main/java/org/apache/mailbox/tools/indexer/ThrowsReIndexer.java
Cf 
server/container/spring/src/main/java/org/apache/james/container/spring/bean/factorypostprocessor/IndexerConfigurationBeanFactoryPostProcessor.java

Sadly the lucene implen do not wire the reindexer.

Let's fix that: https://github.com/apache/james-project/pull/2918

--

Best regards,

Benoit TELLIER

General manager of Linagora VIETNAM.
Product owner for Twake-Mail product.
Chairman of the Apache James project.

Mail: [email protected]
Tel: (0033) 6 77 26 04 58 (WhatsApp, Signal)


Le janv. 16, 2026 11:04 PM, de Scoopta Via Server-user 
<[email protected]>Command run:

     run0 -u james ./james-cli.sh -h localhost reindexall &>      trace.log

     File is attached

     On 1/16/26 12:18 PM, Benoit TELLIER      wrote:
                     Can you please provide the stacktrace?
-- Best regards, Benoit TELLIER General manager of Linagora VIETNAM.
         Product owner for Twake-Mail product.
         Chairman of the Apache James project.
Mail: [email protected]
         Tel: (0033) 6 77 26 04 58 (WhatsApp, Signal)
Le janv. 16, 2026 8:54 PM, de Scoopta <[email protected]> I'm coming from 3.7.5 to 3.9.0 and I saw the mention of reindexing in the upgrade info (on top of the server not starting until I deleted my lucene folder in var). I didn't realize there was a reindexall command, I tried running it but got this error alongside a stack trace.

         Trampoline must not be defined by the bootstrap classloader

         On 1/16/26 12:49 AM, Benoit TELLIER          wrote:
                           Please check the CLI
https://james.apache.org/server/manage-cli.html#Re-indexing Can you please provide the version you were using prior and afer the upgrade In practice if adoptiong 3.9.x from 3.8.x the reindex is wise as we went from Lucene 3.6.2 to 10.2.1 (!) -- Best regards, Benoit TELLIER General manager of Linagora VIETNAM.
             Product owner for Twake-Mail            product.
             Chairman of the Apache              James project.
Mail: [email protected]
             Tel: (0033) 6 77 26 04 58 (WhatsApp, Signal)
Le janv. 16, 2026 4:52 AM, de Scoopta Via Server-user <[email protected]> I recently upgraded to the latest version of james and needed to delete
             and reindex lucene, I'm using the spring wiring which from         
   reading the
             documentation doesn't appear to support the REST API to            
trigger a
             reindex, is reindexing lucene necessary or is deleting it          
  enough?
             Additionally if reindexing it is important is there any way        
    to do this
             with spring?
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