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https://issues.apache.org/jira/browse/DIRSTUDIO-1068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14718571#comment-14718571
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Robert Munteanu commented on DIRSTUDIO-1068:
--------------------------------------------
{quote}But to be honest I don't have a clue what makes the difference, do you
have any idea?{quote}
I see that the slf4j-api bundle included in DirectoryStudio has an
Import-Package statement ( strange for an API bundle )
{code}
Export-Package = org.slf4j;version=1.7.10, org.slf4j.spi;version=1.7.10,
org.slf4j.helpers;version=1.7.10
Import-Package = org.slf4j.impl;version=1.6.0
{code}
That package is exported by the logback bundle, which in turns imports
org.slf4j.helpers from the _other_ slf4j bundle, which is the root cause of the
uses constraint violation. With this wiring the slf4j-api bundle would be
exposed to the same package exported by two bundles.
I looked at the update site and noticed that the log binding features pulls in
the org.apache.directory.studio.slf4j-eclipselog, which exports the 'impl'
package and is actually a fragment bundle:
{code}
Fragment-Host: slf4j.api;bundle-version="[1.7.10,1.7.11)"
Export-Package: org.slf4j.impl;version="2.0.0"
{code}
This means that the slf4j-api bundle no longer has to be wired to the
logback-core bundle to be resolved, which explains why this works.
{quote}Anyway, I hope that with DIRAPI-233 and update to LDAP API 1.0.0-M31 the
additional slf4j-api 1.7.10 won't be required any more. I'll test when I find
some time.{quote}
Is there a way I can test these changes myself?
> Bundles are not resolved on Eclipse Mars
> ----------------------------------------
>
> Key: DIRSTUDIO-1068
> URL: https://issues.apache.org/jira/browse/DIRSTUDIO-1068
> Project: Directory Studio
> Issue Type: Bug
> Components: studio-updatesite
> Reporter: Robert Munteanu
> Attachments: eclipse-mars-error.log
>
>
> I have an Eclipse Mars install and installed Directory Studio using the
> Eclipse Marketplace.
> After the installation is performed I have multiple error FrameworkEvents
> logged regarding bundle installations. All of them bubble down to a uses
> constraint violation.
> {noformat} Bundle was not resolved because of a uses contraint violation.
> org.osgi.service.resolver.ResolutionException: Uses constraint violation.
> Unable to resolve resource slf4j.api [osgi.identity;
> osgi.identity="slf4j.api"; type="osgi.bundle"; version:Version="1.7.10"]
> because it exports package 'org.slf4j.helpers' and is also exposed to it from
> resource org.slf4j.api [osgi.identity; osgi.identity="org.slf4j.api";
> type="osgi.bundle"; version:Version="1.7.2.v20121108-1250"] via the following
> dependency chain:
> slf4j.api [osgi.identity; osgi.identity="slf4j.api"; type="osgi.bundle";
> version:Version="1.7.10"]
> import: (&(osgi.wiring.package=org.slf4j.impl)(version>=1.6.0))
> |
> export: osgi.wiring.package=org.slf4j.impl; uses:=null
> org.slf4j.api [osgi.identity; osgi.identity="org.slf4j.api";
> type="osgi.bundle"; version:Version="1.7.2.v20121108-1250"]
> require:
> (&(osgi.wiring.bundle=ch.qos.logback.classic)(&(bundle-version>=1.0.7)(!(bundle-version>=1.0.8))))
> |
> provide: osgi.wiring.bundle;
> bundle-version:Version="1.0.7.v20121108-1250";
> osgi.wiring.bundle="ch.qos.logback.classic"
> ch.qos.logback.classic [osgi.identity;
> osgi.identity="ch.qos.logback.classic"; type="osgi.bundle";
> version:Version="1.0.7.v20121108-1250"]
> import: (&(osgi.wiring.package=org.slf4j.helpers)(version>=1.7.0))
> |{noformat}
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