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https://issues.apache.org/jira/browse/KARAF-2278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13636320#comment-13636320
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Monish Sen commented on KARAF-2278:
-----------------------------------
[~achim_nierbeck]
Many Thanks for your help.
I was able to install my other components without any explicit slf4j
installation. All required slf4j versions were resolved with pax-logging.
org.slf4j,version=1.7.1 from org.ops4j.pax.logging.pax-logging-api (4)
org.slf4j,version=1.6.6 from org.ops4j.pax.logging.pax-logging-api (4)
org.slf4j,version=1.5.11 from org.ops4j.pax.logging.pax-logging-api (4)
org.slf4j,version=1.4.3 from org.ops4j.pax.logging.pax-logging-api (4)
org.w3c.dom,version=0.0.0 from org.apache.felix.framework (0)
> Jetty ops4j logger doesnot restrict slf4j version
> -------------------------------------------------
>
> Key: KARAF-2278
> URL: https://issues.apache.org/jira/browse/KARAF-2278
> Project: Karaf
> Issue Type: Bug
> Components: karaf-osgi
> Affects Versions: 2.3.1
> Environment: n/a
> Reporter: Monish Sen
>
> Hi,
> Jetty in Karaf 2.3.1 is importing slf4j without version restrictions. When i
> install other components that have strict slf4j dependency, i'm running into
> multichain dependencies.
> org.osgi.framework.BundleException: Uses constraint violation. Unable to
> resolve bundle revision org.ops4j.pax.web.pax-web-jetty [76.0] because it is
> exposed to package 'org.slf4j' from bundle revisions
> org.ops4j.pax.logging.pax-logging-api [4.0] and com.springsource.slf4j.api
> [107.0] via two dependency chains.
> Chain 1:
> org.ops4j.pax.web.pax-web-jetty [76.0]
> import:
> (&(osgi.wiring.package=org.slf4j)(version>=1.5.0)(!(version>=2.0.0)))
> |
> export: osgi.wiring.package=org.slf4j
> org.ops4j.pax.logging.pax-logging-api [4.0]
> Chain 2:
> org.ops4j.pax.web.pax-web-jetty [76.0]
> import:
> (&(osgi.wiring.package=org.eclipse.jetty.security)(version>=7.1.0)(!(version>=8.0.0)))
> |
> export: osgi.wiring.package=org.eclipse.jetty.security;
> uses:=org.eclipse.jetty.server
> org.eclipse.jetty.security [65.0]
> import:
> (&(osgi.wiring.package=org.eclipse.jetty.server)(version>=7.6.0)(!(version>=8.0.0)))
> |
> export: osgi.wiring.package=org.eclipse.jetty.server;
> uses:=org.eclipse.jetty.io
> org.eclipse.jetty.server [64.0]
> import:
> (&(osgi.wiring.package=org.eclipse.jetty.io)(version>=7.6.0)(!(version>=8.0.0)))
> |
> export: osgi.wiring.package=org.eclipse.jetty.io;
> uses:=org.eclipse.jetty.util.log
> org.eclipse.jetty.io [59.0]
> import:
> (&(osgi.wiring.package=org.eclipse.jetty.util.log)(version>=7.6.0)(!(version>=8.0.0)))
> |
> export: osgi.wiring.package=org.eclipse.jetty.util.log;
> uses:=org.slf4j.spi
> org.eclipse.jetty.util [58.0]
> import:
> (&(osgi.wiring.package=org.slf4j.spi)(version>=1.6.0)(!(version>=2.0.0)))
> |
> export: osgi.wiring.package=org.slf4j.spi; uses:=org.slf4j
> export: osgi.wiring.package=org.slf4j
> com.springsource.slf4j.api [107.0]
> at
> org.apache.felix.framework.Felix.resolveBundleRevision(Felix.java:3832)
> at org.apache.felix.framework.Felix.startBundle(Felix.java:1868)
> at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1191)
> at
> org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:295)
> at java.lang.Thread.run(Thread.java:680)
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