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Posted to users@felix.apache.org by Nicolas Delsaux <ni...@gmail.com> on 2010/04/02 11:35:52 UTC
Weird bugs with tutorial/maven
Hi all, i'm currently playing with Felix tutorial.
By use, I do it with maven projects; Tht's to say that, as an example,
I've made the translation service a maven module in my project, and
created the pom file accordingly.
As a consequence, my pom looks like this :
<project>
<parent>
<artifactId>jypsy</artifactId>
<groupId>com.mycompany</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>com.mycompany.pss</groupId>
<artifactId>translation-english</artifactId>
<packaging>bundle</packaging>
<name>translation-english</name>
<version>0.0.1-SNAPSHOT</version>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>org.apache.felix</groupId>
<artifactId>org.osgi.core</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<extensions>true</extensions>
<configuration>
<instructions>
<Export-Package>com.mycompany.translation.api.*</Export-Package>
<Private-Package>com.mycompany.translation.english.*</Private-Package>
<Bundle-Activator>com.mycompany.translation.Activator</Bundle-Activator>
</instructions>
</configuration>
</plugin>
</plugins>
</build>
</project>
As one may guess, i have a superpom which eases me the task of
declaring attributes of my manifest, using the following template :
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<version>1.4.0</version>
<extensions>true</extensions>
<configuration>
<instructions>
<Bundle-SymbolicName>${pom.groupId}.${pom.artifactId}</Bundle-SymbolicName>
<Bundle-Name>${pom.name}</Bundle-Name>
<Bundle-Version>${pom.version}</Bundle-Version>
</instructions>
</configuration>
</plugin>
But there is something I don't understand : the generated manifest has
a set of import package that *precisely* contains my package classes :
Manifest-Version: 1.0
Export-Package: com.mycompany.translation.api
Private-Package: com.mycompany.translation.english
Built-By: ndx
Tool: Bnd-0.0.238
Bundle-Name: translation-english
Created-By: Apache Maven Bundle Plugin
Bundle-Vendor: mycompany
Build-Jdk: 1.6.0_16
Bundle-Version: 0.0.1.SNAPSHOT
Bnd-LastModified: 1270200175640
Bundle-ManifestVersion: 2
Bundle-Activator: com.mycompany.translation.Activator
Bundle-Description: A project
Import-Package: com.mycompany.translation,com.mycompany.translatio
n.api
Bundle-SymbolicName: com.mycompany.translation-english
Bundle-DocURL: http://www.perdu.com
And, as a consequence, when dropping that bundle in Felix, I get an exception :
ERROR: Error starting
file:/C:/java-ext/felix-framework-2.0.4/bundle/translation-english-0.0.1-SNAPSHOT.jar
(org.osgi.fr
amework.BundleException: Unresolved constraint in bundle
com.mycompany.translation-english [7]: package; (package=com.
mycompany.translation))
org.osgi.framework.BundleException: Unresolved constraint in bundle
com.mycompany.translation-english [7]: package; (p
ackage=com.mycompany.translation)->
Here I can see the generated Import-Package clause is wrong.
So, what can I do to avoid/correct that ?
Thanks
--
Nicolas Delsaux
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Re: Weird bugs with tutorial/maven
Posted by Stuart McCulloch <mc...@gmail.com>.
On 2 April 2010 08:58, Nicolas Delsaux <ni...@gmail.com> wrote:
> On Fri, Apr 2, 2010 at 3:43 PM, Richard S. Hall <he...@ungoverned.org>
> wrote:
> >
> >
> > Looking this info, it appears that your bundle makes reference to package
> > com.mycompany.translation (via its activator) but does not contain this
> > package, thus you get a resolve exception when you try to start it.
> >
> > Looking at your POM above, you do not include this package in
> > Private-Package or Export-Package, so it cannot be inside your bundle.
> So, I
> > think the import is correct since your bundle is not packaged properly.
> In
> > short, you need to add this package to your bundle if you don't want to
> > import it.
> >
> OK, thanks. I also found that solution, but initially didn't
> understood why. So, thanks for the explanation.
>
FYI if you use the latest version of the bundleplugin (2.0.1) then you
typically don't need to set either Export-Package or Private-Package
as the defaults are based on your project source code
then you don't have to worry about keeping the instructions up-to-date
--
> Nicolas Delsaux
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@felix.apache.org
> For additional commands, e-mail: users-help@felix.apache.org
>
--
Cheers, Stuart
Re: Weird bugs with tutorial/maven
Posted by Nicolas Delsaux <ni...@gmail.com>.
On Fri, Apr 2, 2010 at 3:43 PM, Richard S. Hall <he...@ungoverned.org> wrote:
>
>
> Looking this info, it appears that your bundle makes reference to package
> com.mycompany.translation (via its activator) but does not contain this
> package, thus you get a resolve exception when you try to start it.
>
> Looking at your POM above, you do not include this package in
> Private-Package or Export-Package, so it cannot be inside your bundle. So, I
> think the import is correct since your bundle is not packaged properly. In
> short, you need to add this package to your bundle if you don't want to
> import it.
>
OK, thanks. I also found that solution, but initially didn't
understood why. So, thanks for the explanation.
--
Nicolas Delsaux
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Re: Weird bugs with tutorial/maven
Posted by "Richard S. Hall" <he...@ungoverned.org>.
On 4/2/10 5:35, Nicolas Delsaux wrote:
> Hi all, i'm currently playing with Felix tutorial.
> By use, I do it with maven projects; Tht's to say that, as an example,
> I've made the translation service a maven module in my project, and
> created the pom file accordingly.
> As a consequence, my pom looks like this :
>
> <project>
> <parent>
> <artifactId>jypsy</artifactId>
> <groupId>com.mycompany</groupId>
> <version>0.0.1-SNAPSHOT</version>
> </parent>
> <modelVersion>4.0.0</modelVersion>
> <groupId>com.mycompany.pss</groupId>
> <artifactId>translation-english</artifactId>
> <packaging>bundle</packaging>
> <name>translation-english</name>
> <version>0.0.1-SNAPSHOT</version>
> <url>http://maven.apache.org</url>
> <dependencies>
> <dependency>
> <groupId>org.apache.felix</groupId>
> <artifactId>org.osgi.core</artifactId>
> </dependency>
> </dependencies>
> <build>
> <plugins>
> <plugin>
> <groupId>org.apache.felix</groupId>
> <artifactId>maven-bundle-plugin</artifactId>
> <extensions>true</extensions>
> <configuration>
> <instructions>
> <Export-Package>com.mycompany.translation.api.*</Export-Package>
> <Private-Package>com.mycompany.translation.english.*</Private-Package>
> <Bundle-Activator>com.mycompany.translation.Activator</Bundle-Activator>
> </instructions>
> </configuration>
> </plugin>
> </plugins>
> </build>
> </project>
>
> As one may guess, i have a superpom which eases me the task of
> declaring attributes of my manifest, using the following template :
>
> <plugin>
> <groupId>org.apache.felix</groupId>
> <artifactId>maven-bundle-plugin</artifactId>
> <version>1.4.0</version>
> <extensions>true</extensions>
> <configuration>
> <instructions>
> <Bundle-SymbolicName>${pom.groupId}.${pom.artifactId}</Bundle-SymbolicName>
> <Bundle-Name>${pom.name}</Bundle-Name>
> <Bundle-Version>${pom.version}</Bundle-Version>
> </instructions>
> </configuration>
> </plugin>
>
>
> But there is something I don't understand : the generated manifest has
> a set of import package that *precisely* contains my package classes :
>
> Manifest-Version: 1.0
> Export-Package: com.mycompany.translation.api
> Private-Package: com.mycompany.translation.english
> Built-By: ndx
> Tool: Bnd-0.0.238
> Bundle-Name: translation-english
> Created-By: Apache Maven Bundle Plugin
> Bundle-Vendor: mycompany
> Build-Jdk: 1.6.0_16
> Bundle-Version: 0.0.1.SNAPSHOT
> Bnd-LastModified: 1270200175640
> Bundle-ManifestVersion: 2
> Bundle-Activator: com.mycompany.translation.Activator
> Bundle-Description: A project
> Import-Package: com.mycompany.translation,com.mycompany.translatio
> n.api
> Bundle-SymbolicName: com.mycompany.translation-english
> Bundle-DocURL: http://www.perdu.com
>
> And, as a consequence, when dropping that bundle in Felix, I get an exception :
>
> ERROR: Error starting
> file:/C:/java-ext/felix-framework-2.0.4/bundle/translation-english-0.0.1-SNAPSHOT.jar
> (org.osgi.fr
> amework.BundleException: Unresolved constraint in bundle
> com.mycompany.translation-english [7]: package; (package=com.
> mycompany.translation))
> org.osgi.framework.BundleException: Unresolved constraint in bundle
> com.mycompany.translation-english [7]: package; (p
> ackage=com.mycompany.translation)->
>
> Here I can see the generated Import-Package clause is wrong.
> So, what can I do to avoid/correct that ?
>
Looking this info, it appears that your bundle makes reference to
package com.mycompany.translation (via its activator) but does not
contain this package, thus you get a resolve exception when you try to
start it.
Looking at your POM above, you do not include this package in
Private-Package or Export-Package, so it cannot be inside your bundle.
So, I think the import is correct since your bundle is not packaged
properly. In short, you need to add this package to your bundle if you
don't want to import it.
-> richard
> Thanks
>
>
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