[ 
https://issues.apache.org/jira/browse/CAMEL-9764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15219563#comment-15219563
 ] 

Claus Ibsen commented on CAMEL-9764:
------------------------------------

And similar problem for camel-mvel
{code}
2016-03-31 10:10:36,543 | ERROR | nsole user karaf | ShellUtil                  
      | 44 - org.apache.karaf.shell.core - 4.0.4 | Exception caught while 
executing command
org.apache.karaf.features.internal.util.MultiException: Error
        at 
org.apache.karaf.features.internal.download.impl.MavenDownloadManager$MavenDownloader.<init>(MavenDownloadManager.java:84)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.download.impl.MavenDownloadManager.createDownloader(MavenDownloadManager.java:72)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:363)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:360)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.region.SubsystemResolver.resolve(SubsystemResolver.java:187)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:263)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1089)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:985)[9:org.apache.karaf.features.core:4.0.4]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_31]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_31]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_31]
        at java.lang.Thread.run(Thread.java:745)[:1.8.0_31]
Caused by: java.lang.Exception: Unable to create resource for bundle 
mvn:org.apache.camel/camel-mvel/2.18-SNAPSHOT
        at 
org.apache.karaf.features.internal.region.Subsystem.createResource(Subsystem.java:601)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.region.Subsystem$1.downloaded(Subsystem.java:381)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.download.impl.MavenDownloadManager$MavenDownloader$1.operationComplete(MavenDownloadManager.java:133)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.download.impl.MavenDownloadManager$MavenDownloader$1.operationComplete(MavenDownloadManager.java:127)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.download.impl.DefaultFuture.notifyListener(DefaultFuture.java:344)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.download.impl.DefaultFuture.notifyListeners(DefaultFuture.java:329)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.download.impl.DefaultFuture.setValue(DefaultFuture.java:255)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.download.impl.AbstractDownloadTask.setFile(AbstractDownloadTask.java:61)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:59)[9:org.apache.karaf.features.core:4.0.4]
        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[:1.8.0_31]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_31]
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)[:1.8.0_31]
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)[:1.8.0_31]
        ... 3 more
Caused by: org.osgi.framework.BundleException: Unable to build resource for 
mvn:org.apache.camel/camel-mvel/2.18-SNAPSHOT: Duplicate import: 
org.apache.camel.spi
        at 
org.apache.karaf.features.internal.resolver.ResourceBuilder.build(ResourceBuilder.java:80)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.resolver.ResourceBuilder.build(ResourceBuilder.java:69)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.region.Subsystem.createResource(Subsystem.java:599)[9:org.apache.karaf.features.core:4.0.4]
        ... 15 more
Caused by: org.osgi.framework.BundleException: Duplicate import: 
org.apache.camel.spi
        at 
org.apache.karaf.features.internal.resolver.ResourceBuilder.normalizeImportClauses(ResourceBuilder.java:325)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.resolver.ResourceBuilder.doBuild(ResourceBuilder.java:170)[9:org.apache.karaf.features.core:4.0.4]
        at 
org.apache.karaf.features.internal.resolver.ResourceBuilder.build(ResourceBuilder.java:78)[9:org.apache.karaf.features.core:4.0.4]
        ... 17 more
{code}

> Maven build: fix to support lambdas in code (JDK8)
> --------------------------------------------------
>
>                 Key: CAMEL-9764
>                 URL: https://issues.apache.org/jira/browse/CAMEL-9764
>             Project: Camel
>          Issue Type: Task
>            Reporter: Raúl Kripalani
>            Assignee: Raúl Kripalani
>             Fix For: 2.18.0
>
>
> See 
> http://camel.465427.n5.nabble.com/Usage-of-Lambdas-in-our-Maven-build-jdk8-lambdas-branch-tp5779737.html.



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