*Guillaume*:
1) thanks for the answer;
my current workaround is to mark slf4j-api maven dependency as optional;
2) re: "
The org.slf4j.impl is not exported because it's not an API. Nobody is
supposed to use that directly. If you control the code, you can
simply remote the references to those.
Else, it may be a bit more complicated depending on how that's use.
"
I am still not convinced;
for example, if you take a look here:
http://ebr.springsource.com/repository/app/bundle/version/detail?name=com.springsource.slf4j.api&version=1.6.1&searchType=bundlesByName&searchQuery=slf4j
it is still required (presumably spring people know what they are
doing :-) )
Package Name Version Range Optional?
org.slf4j.impl [1.6.1, 2.0.0) false
3) probably a better way to handle this in pax-logging would be:
a) kill your org.ops4j.pax.logging.pax-logging-api_1.6.1.jar bundle
b) let people use "normal" logging api bundle dependencies like this:
| <dependency> <groupId>org.slf4j</groupId>
<artifactId>com.springsource.slf4j.api</artifactId>
<version>1.6.1</version> </dependency>
| c) export "org.slf4j.impl" and similar packages from your
org.ops4j.pax.logging.pax-logging-service_1.6.1.jar
and activate support for a particular logging front end only
when corresponding logging api is detected on the framework;
Thank you,
Andrei
-------- Original Message --------
Subject: Re: bundles fail to start ---
http://wiki.ops4j.org/display/paxlogging/2011/02/23/Pax+Logging+1.6.1+released
From: Guillaume Nodet <[email protected]>
To: General OPS4J <[email protected]>
Cc: Andrei Pozolotin <[email protected]>
Date: Fri 22 Apr 2011 03:29:22 PM CDT
> You should use [email protected], so cc there
> The org.slf4j.impl is not exported because it's not an API. Nobody is
> supposed to use that directly. If you control the code, you can
> simply remote the references to those.
> Else, it may be a bit more complicated depending on how that's use.
>
> On Fri, Apr 22, 2011 at 21:55, Andrei Pozolotin
> <[email protected]> wrote:
>
>> Guillaume, hello;
>>
>> 1) thanks for the release:
>> http://wiki.ops4j.org/display/paxlogging/2011/02/23/Pax+Logging+1.6.1+released
>>
>> 2) I am using slf4j in my bundles:
>> <dependency>
>> <groupId>org.slf4j</groupId>
>> <artifactId>slf4j-api</artifactId>
>> <version>1.6.1</version>
>> </dependency>
>>
>> 3) which comes as an osgi bundle from maven central:
>> http://search.maven.org/#artifactdetails|org.slf4j|slf4j-api|1.6.1|jar
>>
>> 4) and declares this import:
>> Import-Package: org.slf4j.impl;version=1.6.0
>>
>> 5) which is NOT exported by either of:
>> org.ops4j.pax.logging.pax-logging-api_1.6.1.jar
>> org.ops4j.pax.logging.pax-logging-service_1.6.1.jar
>> (see below)
>>
>> 6) therefore my bundles fail to start;
>> can you please let me know what am I missing?
>>
>> 7) sorry I could not file this on ops4j jira since
>> I do have account, but forgot password, and you do not provide
>> pass reset feature there;
>>
>> Thank you,
>>
>> Andrei
>>
>>
>> ######################################################
>>
>> org.ops4j.pax.logging.pax-logging-api_1.6.1.jar
>>
>>
>> Manifest-Version: 1.0
>> Export-Package: org.apache.avalon.framework.logger;provider=paxlogging
>> ;uses:="org.apache.log";version="4.3",org.apache.commons.logging;prov
>> ider=paxlogging;uses:="org.ops4j.pax.logging,org.osgi.framework";vers
>> ion="1.1.1",org.apache.commons.logging;version="1.0.4";provider=paxlo
>> gging,org.apache.commons.logging.impl;provider=paxlogging;uses:="org.
>> apache.commons.logging";version="1.1.1",org.apache.commons.logging.im
>> pl;version="1.0.4";provider=paxlogging,org.apache.juli.logging;provid
>> er=paxlogging;uses:="org.ops4j.pax.logging,org.osgi.framework";versio
>> n="1.0",org.apache.log4j;provider=paxlogging;uses:="org.ops4j.pax.log
>> ging,org.osgi.framework,org.apache.log4j.spi";version="1.2.15",org.ap
>> ache.log4j.spi;provider=paxlogging;uses:="org.apache.log4j";version="
>> 1.2.15",org.apache.log4j.xml;provider=paxlogging;uses:="javax.xml.par
>> sers,org.w3c.dom";version="1.2.15",org.knopflerfish.service.log;provi
>> der=paxlogging;uses:="org.osgi.service.log,org.osgi.framework";versio
>> n="1.1.0",org.ops4j.pax.logging;provider=paxlogging;uses:="org.osgi.s
>> ervice.log,org.osgi.framework,org.osgi.util.tracker,org.knopflerfish.
>> service.log";version="1.6.1",org.ops4j.pax.logging.avalon;provider=pa
>> xlogging;uses:="org.ops4j.pax.logging,org.osgi.framework,org.apache.a
>> valon.framework.logger";version="1.6.1",org.ops4j.pax.logging.slf4j;p
>> rovider=paxlogging;uses:="org.ops4j.pax.logging,org.slf4j.helpers,org
>> .slf4j,org.osgi.framework,org.slf4j.spi";version="1.6.1",org.osgi.ser
>> vice.log;uses:="org.osgi.framework";version="1.3",org.slf4j;provider=
>> paxlogging;uses:="org.slf4j.helpers,org.slf4j.spi";version="1.6.1",or
>> g.slf4j;version="1.5.11";provider=paxlogging,org.slf4j;version="1.4.3
>> ";provider=paxlogging,org.slf4j.helpers;provider=paxlogging;uses:="or
>> g.slf4j.spi,org.slf4j";version="1.6.1",org.slf4j.helpers;version="1.5
>> .11";provider=paxlogging,org.slf4j.helpers;version="1.4.3";provider=p
>> axlogging,org.slf4j.spi;provider=paxlogging;uses:="org.slf4j";version
>> ="1.6.1",org.slf4j.spi;version="1.5.11";provider=paxlogging,org.slf4j
>> .spi;version="1.4.3";provider=paxlogging
>> Built-By: gnodet
>> Tool: Bnd-0.0.357
>> Bundle-Name: OPS4J Pax Logging - API
>> Created-By: Apache Maven Bundle Plugin
>> Bundle-Vendor: OPS4J - Open Participation Software for Java
>> Build-Jdk: 1.6.0_22
>> Bundle-Version: 1.6.1
>> Bnd-LastModified: 1298446855820
>> Bundle-Activator: org.ops4j.pax.logging.internal.Activator
>> Bundle-ManifestVersion: 2
>> Bundle-Description: The Pax Logging API Library is to allow for the Pa
>> x Logging Service to be reloaded without stopping the many depende
>> nt bundles. It also contains the OSGi Log Service API and the Knopfle
>> rfish Log API.
>> Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.html
>> Bundle-DocURL: http://www.ops4j.org/projects/pax/logging/pax-logging-a
>> pi
>> Bundle-SymbolicName: org.ops4j.pax.logging.pax-logging-api
>> Import-Package: javax.xml.parsers,org.apache.log;resolution:=optional,
>> org.ops4j.pax.logging;provider=paxlogging;version="[0.9.5,2.0.0)",org
>> .ops4j.pax.logging.avalon;provider=paxlogging;version="[0.9.5,2.0.0)"
>> ,org.osgi.framework;version="[1.0.0,2.0.0)",org.osgi.service.event;re
>> solution:=optional;version="[1.0.0,2.0.0)",org.osgi.service.log;versi
>> on="[1.3.0,2.0.0)",org.osgi.util.tracker;version="[1.0.0,2.0.0)",org.
>> w3c.dom
>>
>>
>>
>> ######################################################
>>
>>
>> org.ops4j.pax.logging.pax-logging-service_1.6.1.jar
>>
>>
>> Manifest-Version: 1.0
>> Export-Package: org.ops4j.pax.logging.spi;provider=paxlogging;version=
>> "1.6.1"
>> Built-By: gnodet
>> Tool: Bnd-0.0.357
>> Bundle-Name: OPS4J Pax Logging - Service
>> Created-By: Apache Maven Bundle Plugin
>> Bundle-Vendor: OPS4J - Open Participation Software for Java
>> Build-Jdk: 1.6.0_22
>> Bundle-Version: 1.6.1
>> Bnd-LastModified: 1298446880527
>> Bundle-Activator: org.ops4j.pax.logging.service.internal.Activator
>> Bundle-ManifestVersion: 2
>> Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.html
>> Bundle-Description: Pax Logging Service is a Log4J driven service that
>> supports Jakarta Commons Logging, Log4J, Avalon Logging, SLF4J an
>> d Pax Logging clients. Note that all this clients must use the Pax Lo
>> gging Client library in the proper way. See documentation for deta
>> ils.
>> Bundle-DocURL: http://www.ops4j.org/projects/pax/logging/pax-logging-s
>> ervice
>> Bundle-SymbolicName: org.ops4j.pax.logging.pax-logging-service
>> Import-Package: com.ibm.uvm.tools;resolution:=optional,com.sun.jdmk.co
>> mm;resolution:=optional,javax.jmdns;resolution:=optional,javax.jms;re
>> solution:=optional,javax.mail;resolution:=optional,javax.mail.interne
>> t;resolution:=optional,javax.management;resolution:=optional,javax.na
>> ming;resolution:=optional,javax.swing;resolution:=optional,javax.swin
>> g.border;resolution:=optional,javax.swing.event;resolution:=optional,
>> javax.swing.table;resolution:=optional,javax.swing.text;resolution:=o
>> ptional,javax.swing.tree;resolution:=optional,javax.xml.parsers,org.a
>> pache.avalon.framework.logger;version="4.3",org.apache.commons.loggin
>> g;version="1.1",org.apache.juli.logging;version="1.0",org.knopflerfis
>> h.service.log;provider=paxlogging;version="[1.1.0,2.0.0)",org.ops4j.p
>> ax.logging;version="[0.9.5,2.0.0)",org.ops4j.pax.logging.avalon;versi
>> on="1.6",org.ops4j.pax.logging.slf4j;version="1.6",org.ops4j.pax.logg
>> ing.spi;provider=paxlogging;version="1.6",org.osgi.framework;version=
>> "[1.0.0,2.0.0)",org.osgi.service.cm;version="[1.0.0,2.0.0)",org.osgi.
>> service.event;resolution:=optional;version="[1.0.0,2.0.0)",org.osgi.s
>> ervice.log;version="[1.3.0,2.0.0)",org.osgi.util.tracker;version="[1.
>> 3.0,2.0.0)",org.slf4j;version="1.6",org.w3c.dom,org.xml.sax,org.xml.s
>> ax.helpers
>> Embed-Dependency: log4j;inline=true
>>
>>
>>
>>
>
>
>
>
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