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 >> >>
