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Import Maven Libraries in OSGi Package

1

I generated an OSGi Project with

mvn org.apache.maven.plugins:maven-archetype-plugin:3.0.1:generate 
 -DarchetypeGroupId=org.osgi.enroute.archetype 
 -DarchetypeArtifactId=project 
 -DarchetypeVersion=7.0.0

Afterwards I tried to add some maven dependencies at the impl project.

 <dependency>
 <groupId>org.iot.raspberry</groupId>
 <artifactId>GrovePi-spec</artifactId>
 <version>0.1.0-SNAPSHOT</version>
 </dependency>
 <dependency>
 <groupId>org.iot.raspberry</groupId>
 <artifactId>GrovePi-pi4j</artifactId>
 <version>0.1.0-SNAPSHOT</version>
 </dependency>

But maven always prints out Unable to resolve <<INITIAL>>: missing requirement osgi.identity;filter:='(osgi.identity=com.itemis.raspberry.impl)' [caused by: Unable to resolve com.itemis.raspberry.impl version=1.0.0.201903061404: missing requirement osgi.wiring.package;filter:='(&(osgi.wiring.package=org.iot.raspberry.grovepi))']

did someone know why this happens?

java maven osgi

share|improve this question

asked Mar 6 at 14:46

auryn31auryn31

374217

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I guess that the dependencies you added maybe contain the org.iot.raspberry.grovepi package but none of them actually export that package through their MANIFEST.MF file. If this is the case, you have to amend the dependencies and export the packages you need through the Export-Package directive
  
  – matteo rulli
  Mar 6 at 22:18
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ok, the package is in the manifest file but private. Private-Package: com.itemis.raspberry.raspberry.io is this an issue?
  
  – auryn31
  Mar 7 at 6:28
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Yes, private package means the package cannot be used outside the defining bundle: you must export it (if it makes sense doing so from a modularity point of view). By the way, from the error you reported, the package to check is org.iot.raspberry.grovepi
  
  – matteo rulli
  Mar 7 at 8:29
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I agree with the above, except that the error indicates you shouldn't be using the package org.iot.raspberry.grovepi because it is marked as private by the developer of the bundle. I'm assuming that com.itemis.raspberry.impl is your own bundle and the org.iot.raspberry... bundles are provided by a third party.
  
  – Neil Bartlett
  Mar 7 at 9:05
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ok, thanks :-) I think I found the error :-)
  
  – auryn31
  Mar 7 at 9:37
  

  
  
  
  

add a comment | 

1

I generated an OSGi Project with

mvn org.apache.maven.plugins:maven-archetype-plugin:3.0.1:generate 
 -DarchetypeGroupId=org.osgi.enroute.archetype 
 -DarchetypeArtifactId=project 
 -DarchetypeVersion=7.0.0

Afterwards I tried to add some maven dependencies at the impl project.

 <dependency>
 <groupId>org.iot.raspberry</groupId>
 <artifactId>GrovePi-spec</artifactId>
 <version>0.1.0-SNAPSHOT</version>
 </dependency>
 <dependency>
 <groupId>org.iot.raspberry</groupId>
 <artifactId>GrovePi-pi4j</artifactId>
 <version>0.1.0-SNAPSHOT</version>
 </dependency>

But maven always prints out Unable to resolve <<INITIAL>>: missing requirement osgi.identity;filter:='(osgi.identity=com.itemis.raspberry.impl)' [caused by: Unable to resolve com.itemis.raspberry.impl version=1.0.0.201903061404: missing requirement osgi.wiring.package;filter:='(&(osgi.wiring.package=org.iot.raspberry.grovepi))']

did someone know why this happens?

java maven osgi

share|improve this question

asked Mar 6 at 14:46

auryn31auryn31

374217

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I guess that the dependencies you added maybe contain the org.iot.raspberry.grovepi package but none of them actually export that package through their MANIFEST.MF file. If this is the case, you have to amend the dependencies and export the packages you need through the Export-Package directive
  
  – matteo rulli
  Mar 6 at 22:18
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ok, the package is in the manifest file but private. Private-Package: com.itemis.raspberry.raspberry.io is this an issue?
  
  – auryn31
  Mar 7 at 6:28
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Yes, private package means the package cannot be used outside the defining bundle: you must export it (if it makes sense doing so from a modularity point of view). By the way, from the error you reported, the package to check is org.iot.raspberry.grovepi
  
  – matteo rulli
  Mar 7 at 8:29
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I agree with the above, except that the error indicates you shouldn't be using the package org.iot.raspberry.grovepi because it is marked as private by the developer of the bundle. I'm assuming that com.itemis.raspberry.impl is your own bundle and the org.iot.raspberry... bundles are provided by a third party.
  
  – Neil Bartlett
  Mar 7 at 9:05
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ok, thanks :-) I think I found the error :-)
  
  – auryn31
  Mar 7 at 9:37
  

  
  
  
  

add a comment | 

I generated an OSGi Project with

mvn org.apache.maven.plugins:maven-archetype-plugin:3.0.1:generate 
 -DarchetypeGroupId=org.osgi.enroute.archetype 
 -DarchetypeArtifactId=project 
 -DarchetypeVersion=7.0.0

Afterwards I tried to add some maven dependencies at the impl project.

 <dependency>
 <groupId>org.iot.raspberry</groupId>
 <artifactId>GrovePi-spec</artifactId>
 <version>0.1.0-SNAPSHOT</version>
 </dependency>
 <dependency>
 <groupId>org.iot.raspberry</groupId>
 <artifactId>GrovePi-pi4j</artifactId>
 <version>0.1.0-SNAPSHOT</version>
 </dependency>

But maven always prints out Unable to resolve <<INITIAL>>: missing requirement osgi.identity;filter:='(osgi.identity=com.itemis.raspberry.impl)' [caused by: Unable to resolve com.itemis.raspberry.impl version=1.0.0.201903061404: missing requirement osgi.wiring.package;filter:='(&(osgi.wiring.package=org.iot.raspberry.grovepi))']

did someone know why this happens?

java maven osgi

share|improve this question

asked Mar 6 at 14:46

auryn31auryn31

374217

mvn org.apache.maven.plugins:maven-archetype-plugin:3.0.1:generate 
 -DarchetypeGroupId=org.osgi.enroute.archetype 
 -DarchetypeArtifactId=project 
 -DarchetypeVersion=7.0.0

 <dependency>
 <groupId>org.iot.raspberry</groupId>
 <artifactId>GrovePi-spec</artifactId>
 <version>0.1.0-SNAPSHOT</version>
 </dependency>
 <dependency>
 <groupId>org.iot.raspberry</groupId>
 <artifactId>GrovePi-pi4j</artifactId>
 <version>0.1.0-SNAPSHOT</version>
 </dependency>

share|improve this question

asked Mar 6 at 14:46

auryn31auryn31

374217

share|improve this question

asked Mar 6 at 14:46

auryn31auryn31

374217

asked Mar 6 at 14:46

auryn31auryn31

374217

asked Mar 6 at 14:46

auryn31auryn31

374217