[weld-issues] [JBoss JIRA] Commented: (WELD-522) Weld makes my Java SE app startup time >100x slower

[Pete Muir (JIRA)]

    [ https://jira.jboss.org/browse/WELD-522?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12531205#action_12531205 ] 

Pete Muir commented on WELD-522:
--------------------------------

Morten, absolutely, I was assuming we all though this. What we need to do is isolate *where* in the code this problem is, as some stuff we can speed up (e.g. reflection) and some we can't (e.g. scanner).

> Weld makes my Java SE app startup time >100x slower 
> ----------------------------------------------------
>
>                 Key: WELD-522
>                 URL: https://jira.jboss.org/browse/WELD-522
>             Project: Weld
>          Issue Type: Bug
>    Affects Versions: 1.0.1.Final
>         Environment: Java 6, Weld 1.01 SE + lots of jars on the classpath
>            Reporter: Morten Christensen
>
> Booting my Java SE app without weld takes << 1s BUT the 1 line for initializing weld to autowire my app takes at least 4-5 seconds. 
> My app is not so big and consist of ~20-30 singletons that must be wired + various other non-weld stuff. I have lots of stuff on my classpath so I suspect that could be why weld is going crazy. 
> I guess this could be improved if I can have weld limited to work only inside my own jar and/or only work with specific classes/packages.
> P.S. With breakpoints enabled in a debugger and a bit of unluck, I was even able to have welds initialization to take ~ 5 minutes one day (reduced to seconds again after I removed all breakpoints though).

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