Would it be possible for you to test with a SNAPSHOT I can provide to you?

Regards
JB

On Thu, Apr 16, 2026 at 5:47 PM Matthias Leinweber <
[email protected]> wrote:

> Hello JB,
>
> do you have any suggestions how i could debug my case?
>
> Am Di., 7. Apr. 2026 um 10:27 Uhr schrieb Matthias Leinweber <
> [email protected]>:
>
>> Hello JB,
>>
>> no grep " <repository" -A 5 * -R has n results in my assembly or did i
>> misunderstood your hint?
>>
>> regards,
>> Matthias
>>
>>
>> Am Mo., 6. Apr. 2026 um 08:15 Uhr schrieb Jean-Baptiste Onofré <
>> [email protected]>:
>>
>>> Can you check if you don't have empty <repository/> in your features
>>> repository XML ?
>>>
>>> Regards
>>> JB
>>>
>>> On Sun, Apr 5, 2026 at 6:22 PM Matthias Leinweber <
>>> [email protected]> wrote:
>>>
>>>> Hi JB,
>>>>
>>>> Is there a workaround for me?
>>>>
>>>> Br
>>>> Matthias
>>>>
>>>> Jean-Baptiste Onofré <[email protected]> schrieb am So., 5. Apr. 2026,
>>>> 17:25:
>>>>
>>>>> Hi,
>>>>>
>>>>> I have created a pull request to address the exception encountered
>>>>> when a features repository contains an empty repo:
>>>>> https://github.com/apache/karaf/pull/2515
>>>>>
>>>>> This should resolve the issue you reported.
>>>>>
>>>>> Regards,
>>>>> JB
>>>>>
>>>>> On Thu, Apr 2, 2026 at 5:26 PM Jean-Baptiste Onofré <[email protected]>
>>>>> wrote:
>>>>>
>>>>>> Thanks, let me investigate.
>>>>>>
>>>>>> I will keep you posted.
>>>>>>
>>>>>> Regards
>>>>>> JB
>>>>>>
>>>>>> On Wed, Apr 1, 2026 at 5:48 PM Matthias Leinweber
>>>>>> <[email protected]> wrote:
>>>>>> >
>>>>>> > Sure
>>>>>> >
>>>>>> > <?xml version="1.0" encoding="UTF-8"?>
>>>>>> >
>>>>>> > <project xmlns="http://maven.apache.org/POM/4.0.0"; xmlns:xsi="
>>>>>> http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="
>>>>>> http://maven.apache.org/POM/4.0.0
>>>>>> http://maven.apache.org/xsd/maven-4.0.0.xsd";>
>>>>>> >
>>>>>> >   <artifactId>rahla</artifactId>
>>>>>> >
>>>>>> >
>>>>>> >   <groupId>rahla.assembly</groupId>
>>>>>> >   <modelVersion>4.0.0</modelVersion>
>>>>>> >
>>>>>> >   <name>Rahla Assembly</name>
>>>>>> >
>>>>>> >   <packaging>karaf-assembly</packaging>
>>>>>> >
>>>>>> >
>>>>>> >   <parent>
>>>>>> >     <artifactId>reactor</artifactId>
>>>>>> >     <groupId>rahla</groupId>
>>>>>> >     <relativePath>../pom.xml</relativePath>
>>>>>> >     <version>1.3.1-SNAPSHOT</version>
>>>>>> >   </parent>
>>>>>> >
>>>>>> >   <dependencies>
>>>>>> >     <dependency>
>>>>>> >       <groupId>org.apache.karaf.features</groupId>
>>>>>> >       <artifactId>framework</artifactId>
>>>>>> >       <type>kar</type>
>>>>>> >       <scope>compile</scope>
>>>>>> >     </dependency>
>>>>>> >
>>>>>> >     <dependency>
>>>>>> >       <groupId>org.apache.karaf.features</groupId>
>>>>>> >       <artifactId>framework</artifactId>
>>>>>> >       <classifier>features</classifier>
>>>>>> >       <type>xml</type>
>>>>>> >       <scope>runtime</scope>
>>>>>> >     </dependency>
>>>>>> >
>>>>>> >     <dependency>
>>>>>> >       <groupId>org.apache.karaf.features</groupId>
>>>>>> >       <artifactId>standard</artifactId>
>>>>>> >       <classifier>features</classifier>
>>>>>> >       <type>xml</type>
>>>>>> >       <scope>runtime</scope>
>>>>>> >     </dependency>
>>>>>> >
>>>>>> >     <dependency>
>>>>>> >       <groupId>org.apache.karaf.features</groupId>
>>>>>> >       <artifactId>spring-legacy</artifactId>
>>>>>> >       <classifier>features</classifier>
>>>>>> >       <type>xml</type>
>>>>>> >       <scope>runtime</scope>
>>>>>> >     </dependency>
>>>>>> >
>>>>>> >     <dependency>
>>>>>> >       <groupId>org.apache.karaf.features</groupId>
>>>>>> >       <artifactId>enterprise</artifactId>
>>>>>> >       <classifier>features</classifier>
>>>>>> >       <type>xml</type>
>>>>>> >       <scope>runtime</scope>
>>>>>> >     </dependency>
>>>>>> >
>>>>>> >     <dependency>
>>>>>> >       <artifactId>apache-camel</artifactId>
>>>>>> >       <classifier>features</classifier>
>>>>>> >       <groupId>org.apache.camel.karaf</groupId>
>>>>>> >       <scope>runtime</scope>
>>>>>> >       <type>xml</type>
>>>>>> >     </dependency>
>>>>>> >
>>>>>> >     <dependency>
>>>>>> >       <groupId>org.apache.karaf.features</groupId>
>>>>>> >       <artifactId>specs</artifactId>
>>>>>> >       <classifier>features</classifier>
>>>>>> >       <type>xml</type>
>>>>>> >       <scope>runtime</scope>
>>>>>> >     </dependency>
>>>>>> >
>>>>>> >     <dependency>
>>>>>> >       <artifactId>rahla</artifactId>
>>>>>> >       <classifier>features</classifier>
>>>>>> >       <groupId>rahla.feature</groupId>
>>>>>> >       <scope>runtime</scope>
>>>>>> >       <type>xml</type>
>>>>>> >     </dependency>
>>>>>> >
>>>>>> >     <dependency>
>>>>>> >       <artifactId>fradi</artifactId>
>>>>>> >       <classifier>features</classifier>
>>>>>> >       <groupId>rahla.feature</groupId>
>>>>>> >       <scope>runtime</scope>
>>>>>> >       <type>xml</type>
>>>>>> >     </dependency>
>>>>>> >
>>>>>> >     <dependency>
>>>>>> >       <artifactId>graphsource</artifactId>
>>>>>> >       <classifier>features</classifier>
>>>>>> >       <groupId>rahla.feature</groupId>
>>>>>> >       <scope>runtime</scope>
>>>>>> >       <type>xml</type>
>>>>>> >     </dependency>
>>>>>> >
>>>>>> >     <dependency>
>>>>>> >       <artifactId>jedissource</artifactId>
>>>>>> >       <classifier>features</classifier>
>>>>>> >       <groupId>rahla.feature</groupId>
>>>>>> >       <scope>runtime</scope>
>>>>>> >       <type>xml</type>
>>>>>> >     </dependency>
>>>>>> >     <dependency>
>>>>>> >       <artifactId>camel-route-templates</artifactId>
>>>>>> >       <classifier>features</classifier>
>>>>>> >       <groupId>rahla.feature</groupId>
>>>>>> >       <scope>runtime</scope>
>>>>>> >       <type>xml</type>
>>>>>> >     </dependency>
>>>>>> >     <dependency>
>>>>>> >       <artifactId>rahla-logging</artifactId>
>>>>>> >       <classifier>features</classifier>
>>>>>> >       <groupId>rahla.feature</groupId>
>>>>>> >       <scope>compile</scope>
>>>>>> >       <type>xml</type>
>>>>>> >     </dependency>
>>>>>> >
>>>>>> >   </dependencies>
>>>>>> >
>>>>>> >
>>>>>> >   <build>
>>>>>> >     <plugins>
>>>>>> >       <plugin>
>>>>>> >         <artifactId>maven-install-plugin</artifactId>
>>>>>> >         <configuration>
>>>>>> >           <skip>true</skip>
>>>>>> >         </configuration>
>>>>>> >         <groupId>org.apache.maven.plugins</groupId>
>>>>>> >       </plugin>
>>>>>> >       <plugin>
>>>>>> >         <groupId>org.apache.maven.plugins</groupId>
>>>>>> >         <artifactId>maven-deploy-plugin</artifactId>
>>>>>> >         <configuration>
>>>>>> >           <skip>true</skip>
>>>>>> >         </configuration>
>>>>>> >       </plugin>
>>>>>> >       <plugin>
>>>>>> >         <artifactId>karaf-maven-plugin</artifactId>
>>>>>> >         <configuration>
>>>>>> >           <archiveTarGz>false</archiveTarGz>
>>>>>> >           <archiveZip>false</archiveZip>
>>>>>> >           <startupFeatures>
>>>>>> >             <feature>rahla-logging</feature>
>>>>>> >             <feature>wrap</feature>
>>>>>> >           </startupFeatures>
>>>>>> >           <bootFeatures>
>>>>>> >             <feature>standard</feature>
>>>>>> >             <feature>scr</feature>
>>>>>> >             <feature>spifly</feature>
>>>>>> >             <feature>pax-web-http-undertow</feature>
>>>>>> >             <feature>jolokia</feature>
>>>>>> >             <feature>rahla</feature>
>>>>>> >           </bootFeatures>
>>>>>> >           <installedFeatures>
>>>>>> >             <feature>fradi</feature>
>>>>>> >             <feature>graphsource</feature>
>>>>>> >             <feature>jedissource</feature>
>>>>>> >             <feature>camel-route-templates</feature>
>>>>>> >           </installedFeatures>
>>>>>> >           <libraries>
>>>>>> >
>>>>>>  
>>>>>> <library>mvn:io.prometheus.jmx/jmx_prometheus_javaagent/${jmx_exporter.version}</library>
>>>>>> >
>>>>>>  
>>>>>> <library>mvn:io.opentelemetry.javaagent/opentelemetry-javaagent/${opentelemetry_agent.version}</library>
>>>>>> >           </libraries>
>>>>>> >           <blacklistedBundles>
>>>>>> >             <bundle>mvn:org.apache.groovy/groovy/[4,5)</bundle>
>>>>>> >
>>>>>>  <bundle>mvn:com.fasterxml.woodstox/woodstox-core/7.0.0</bundle>
>>>>>> >
>>>>>>  <bundle>mvn:io.undertow/undertow-core/2.2.37.Final</bundle>
>>>>>> >
>>>>>>  <bundle>mvn:io.undertow/undertow-servlet/2.2.37.Final</bundle>
>>>>>> >
>>>>>>  <!--<bundle>mvn:org.codehaus.woodstox/stax2-api/4.2.1</bundle>
>>>>>> >
>>>>>>  <bundle>mvn:org.codehaus.woodstox/woodstox-core-asl/4.4.1</bundle>
>>>>>> >             <bundle>mvn:org.yaml/snakeyaml/1.30</bundle>-->
>>>>>> >           </blacklistedBundles>
>>>>>> >           <javase>17</javase>
>>>>>> >         </configuration>
>>>>>> >         <groupId>org.apache.karaf.tooling</groupId>
>>>>>> >       </plugin>
>>>>>> >     </plugins>
>>>>>> >     <resources>
>>>>>> >       <resource>
>>>>>> >         <directory>src/main/resources</directory>
>>>>>> >         <filtering>false</filtering>
>>>>>> >         <includes>
>>>>>> >           <include>**/*</include>
>>>>>> >         </includes>
>>>>>> >       </resource>
>>>>>> >       <resource>
>>>>>> >         <directory>src/main/filtered-resources</directory>
>>>>>> >         <filtering>true</filtering>
>>>>>> >         <includes>
>>>>>> >           <include>**/*</include>
>>>>>> >         </includes>
>>>>>> >       </resource>
>>>>>> >     </resources>
>>>>>> >   </build>
>>>>>> > </project>
>>>>>> >
>>>>>> >
>>>>>> >
>>>>>> > Am Mi., 1. Apr. 2026 um 15:22 Uhr schrieb Jean-Baptiste Onofré <
>>>>>> [email protected]>:
>>>>>> >>
>>>>>> >> Hi Matthias
>>>>>> >>
>>>>>> >> I suspect it's related to a change I did on the karaf-maven-plugin
>>>>>> (around assembly).
>>>>>> >>
>>>>>> >> Can you share with me the pom.xml to reproduce it ?
>>>>>> >>
>>>>>> >> Thanks,
>>>>>> >>
>>>>>> >> Regards
>>>>>> >> JB
>>>>>> >>
>>>>>> >> On Tue, Mar 31, 2026 at 6:46 PM Matthias Leinweber <
>>>>>> [email protected]> wrote:
>>>>>> >>>
>>>>>> >>> Dear Karaf Users,
>>>>>> >>>
>>>>>> >>> I am currently maintaining a Karaf assembly and am in the process
>>>>>> of upgrading to version 4.4.10. However, I am encountering an error 
>>>>>> message
>>>>>> during startup and would appreciate guidance on how to begin debugging 
>>>>>> this
>>>>>> issue
>>>>>> >>>
>>>>>> >>> java.lang.RuntimeException: Repository spec is empty string. :
>>>>>> mvn:org.apache.karaf.features/standard/4.4.10/xml/features
>>>>>> >>> at
>>>>>> org.apache.karaf.features.internal.service.RepositoryImpl.load(RepositoryImpl.java:121)
>>>>>> >>> at
>>>>>> org.apache.karaf.features.internal.service.RepositoryImpl.<init>(RepositoryImpl.java:51)
>>>>>> >>> at
>>>>>> org.apache.karaf.features.internal.service.RepositoryCacheImpl.create(RepositoryCacheImpl.java:51)
>>>>>> >>> at
>>>>>> org.apache.karaf.features.internal.service.FeaturesServiceImpl.addRepository(FeaturesServiceImpl.java:386)
>>>>>> >>> at
>>>>>> org.apache.karaf.features.internal.service.FeaturesServiceImpl.addRepository(FeaturesServiceImpl.java:381)
>>>>>> >>> at
>>>>>> org.apache.karaf.features.internal.service.BootFeaturesInstaller.addRepositories(BootFeaturesInstaller.java:136)
>>>>>> >>> at
>>>>>> org.apache.karaf.features.internal.service.BootFeaturesInstaller.installBootFeatures(BootFeaturesInstaller.java:95)
>>>>>> >>> at
>>>>>> org.apache.karaf.features.internal.service.BootFeaturesInstaller.start(BootFeaturesInstaller.java:89)
>>>>>> >>> at
>>>>>> org.apache.karaf.features.internal.osgi.Activator.doStart(Activator.java:215)
>>>>>> >>> at
>>>>>> org.apache.karaf.util.tracker.BaseActivator.run(BaseActivator.java:312)
>>>>>> >>> at
>>>>>> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
>>>>>> >>> at
>>>>>> java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
>>>>>> >>> at
>>>>>> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
>>>>>> >>> at
>>>>>> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
>>>>>> >>> at java.base/java.lang.Thread.run(Thread.java:1583)
>>>>>> >>> Caused by: shaded.org.ops4j.lang.NullArgumentException:
>>>>>> Repository spec is empty string.
>>>>>> >>> at
>>>>>> shaded.org.ops4j.lang.NullArgumentException.validateNotEmpty(NullArgumentException.java:108)
>>>>>> >>> at
>>>>>> org.ops4j.pax.url.mvn.internal.config.MavenRepositoryURL.<init>(MavenRepositoryURL.java:221)
>>>>>> >>> at
>>>>>> org.ops4j.pax.url.mvn.internal.config.MavenConfigurationImpl.getRepositories(MavenConfigurationImpl.java:401)
>>>>>> >>> at
>>>>>> org.ops4j.pax.url.mvn.internal.AetherBasedResolver.selectRemoteRepositories(AetherBasedResolver.java:928)
>>>>>> >>> at
>>>>>> org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:368)
>>>>>> >>> at
>>>>>> org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:352)
>>>>>> >>> at
>>>>>> org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:322)
>>>>>> >>> at
>>>>>> org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:312)
>>>>>> >>> at
>>>>>> org.ops4j.pax.url.mvn.internal.Connection.getInputStream(Connection.java:120)
>>>>>> >>> at java.base/java.net.URL.openStream(URL.java:1325)
>>>>>> >>> at
>>>>>> org.apache.karaf.features.internal.service.RepositoryImpl.load(RepositoryImpl.java:114)
>>>>>> >>> ... 14 more
>>>>>> >>>
>>>>>> >>>
>>>>>> >>> Could you please advise on the best approach or specific logs I
>>>>>> should examine to identify the root cause? I get this erorr for every
>>>>>> feature defined in my karaf-assembly
>>>>>> >>>
>>>>>> >>> Best regards,
>>>>>> >>>
>>>>>> >>> Matthias Leinweber
>>>>>> >>>
>>>>>>
>>>>>

Reply via email to