Re: [jetty-users] class version problem - use modules?

[Joakim Erdfelt <joakim@xxxxxxxxxxx>]

That seems to be a slf4j version mismatch.

Be sure that you are using slf4j 1.6.4+

And that you are using the same versions of slf4j on the server and your webapp's WEB-INF/lib.

--

Joakim Erdfelt <joakim@xxxxxxxxxxx>

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On Fri, Aug 15, 2014 at 12:18 PM, Rob Nikander <rob.nikander@xxxxxxxxx> wrote:

Hi,

I've been blissfully ignorant and simply putting jars into lib/ext or the app's WEB-INF/lib, but today I hit a problem trying to use Apache Tika. If I put the tika jar in lib/ext, Jetty fails to start [1], and I'm wondering if it's because the Tika jar has an older version of an slf4j class. 

Is this something I can get around with modules? Maybe I can add the tika jar but keeps its copy of slf4j classes private to itself?  I remember jboss modules doing something like this, but I don't see anything on the doc page [2]

thanks,

Rob

(I'm using Jetty 9.2)

[1]

java.lang.NoSuchMethodError: org.slf4j.helpers.MessageFormatter.arrayFormat(Ljava/lang/String;[Ljava/lang/Object;)Lorg/slf4j/helpers/FormattingTuple;

at org.eclipse.jetty.util.log.JettyAwareLogger.log(JettyAwareLogger.java:619)

at org.eclipse.jetty.util.log.JettyAwareLogger.info(JettyAwareLogger.java:314)

[2] http://www.eclipse.org/jetty/documentation/current/startup-modules.html

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