[jbosstools-issues] [JBoss JIRA] (JBIDE-22673) Need better duplicate IU detection when validating target platforms

[Nick Boldt (JIRA)]

    [ https://issues.jboss.org/browse/JBIDE-22673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13263292#comment-13263292 ] 

Nick Boldt commented on JBIDE-22673:
------------------------------------

Curiously, when I apply the above PR for discovery and try to use verifyTarget.sh to verify the target platform, I get this:

{code}
[ERROR] Internal error: java.lang.ClassCastException: org.eclipse.tycho.core.osgitools.DefaultReactorProject cannot be cast to org.eclipse.tycho.ReactorProject -> [Help 1]
org.apache.maven.InternalErrorException: Internal error: java.lang.ClassCastException: org.eclipse.tycho.core.osgitools.DefaultReactorProject cannot be cast to org.eclipse.tycho.ReactorProject
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:164)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:555)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: java.lang.ClassCastException: org.eclipse.tycho.core.osgitools.DefaultReactorProject cannot be cast to org.eclipse.tycho.ReactorProject
	at org.eclipse.tycho.core.osgitools.DefaultReactorProject.adapt(DefaultReactorProject.java:44)
	at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead(TychoMavenLifecycleParticipant.java:90)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:271)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152)
	... 11 more
{code}

> Need better duplicate IU detection when validating target platforms
> -------------------------------------------------------------------
>
>                 Key: JBIDE-22673
>                 URL: https://issues.jboss.org/browse/JBIDE-22673
>             Project: Tools (JBoss Tools)
>          Issue Type: Sub-task
>          Components: build, target-platform, upstream
>    Affects Versions: 4.4.0.Final
>            Reporter: Nick Boldt
>            Assignee: Mickael Istria
>             Fix For: 4.4.1.AM2
>
>
> As discussed in JBIDE-22633, we have no way of knowing when the target platform SHOULD contain duplicate IUs, and when it should not.
> {quote}Problem is there's no way to identify easily which dupes are OK and which are not. I suppose I could crack open all the jars and see which are singletons...?
> Or add a whitelist?{quote}



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