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Re: [tycho-user] how generate p2 repository/update site with source of features with tycho?

Yeah sorry,

1] i would like to know if this is correct step how to make update site with sources
2] if yes, the error is:

mavenExecutionResult exceptions not empty
message : Failed to execute goal org.eclipse.tycho:tycho-p2-plugin:0.14.1:p2-metadata (attached-p2-metadata) on project <nameOfMyProduct> : Execution attached-p2-metadata of goal org.eclipse.tycho:tycho-p2-plugin:0.14.1:p2-metadata failed.
cause : Execution attached-p2-metadata of goal org.eclipse.tycho:tycho-p2-plugin:0.14.1:p2-metadata failed.
Stack trace : 
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.eclipse.tycho:tycho-p2-plugin:0.14.1:p2-metadata (attached-p2-metadata) on project <nameOfMyProduct>: Execution attached-p2-metadata of goal org.eclipse.tycho:tycho-p2-plugin:0.14.1:p2-metadata failed.
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
	at org.jvnet.hudson.maven3.launcher.Maven3Launcher.main(Maven3Launcher.java:79)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchStandard(Launcher.java:329)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:239)
	at org.jvnet.hudson.maven3.agent.Maven3Main.launch(Maven3Main.java:158)
	at hudson.maven.Maven3Builder.call(Maven3Builder.java:98)
	at hudson.maven.Maven3Builder.call(Maven3Builder.java:64)
	at hudson.remoting.UserRequest.perform(UserRequest.java:118)
	at hudson.remoting.UserRequest.perform(UserRequest.java:48)
	at hudson.remoting.Request$2.run(Request.java:326)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution attached-p2-metadata of goal org.eclipse.tycho:tycho-p2-plugin:0.14.1:p2-metadata failed.
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:110)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
	... 27 more
Caused by: java.lang.NullPointerException
	at org.eclipse.tycho.p2.impl.publisher.P2GeneratorImpl.getProductFiles(P2GeneratorImpl.java:224)
	at org.eclipse.tycho.p2.impl.publisher.P2GeneratorImpl.getPublisherActions(P2GeneratorImpl.java:172)
	at org.eclipse.tycho.p2.impl.publisher.AbstractMetadataGenerator.generateMetadata(AbstractMetadataGenerator.java:56)
	at org.eclipse.tycho.p2.impl.publisher.P2GeneratorImpl.generateMetadata(P2GeneratorImpl.java:99)
	at org.eclipse.tycho.plugins.p2.P2MetadataMojo.attachP2Metadata(P2MetadataMojo.java:118)
	at org.eclipse.tycho.plugins.p2.P2MetadataMojo.execute(P2MetadataMojo.java:68)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
	... 28 more
channel stopped
Finished: FAILURE