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http://jira.codehaus.org/browse/MNG-4833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=236249#action_236249
]
Stuart McCulloch commented on MNG-4833:
---------------------------------------
OK, here's the problem:
The maven-site-plugin calls the canGenerateReport method of the JavadocReport
without setting the TCCL or lookupRealm to the maven-javadoc-plugin realm. This
means any (string-based) Plexus component lookup requests will use the site
plugin context. As the stack trace below shows, the JavadocReport looks up an
UnArchiver while processing the canGenerateReport request. Because it is using
the site plugin context and not the javadoc plugin context, the ZipUnArchiver
it finds is not classloader compatible (it is doing a pure string-based lookup
so we only find out about the incompatibility when the value is assigned).
Solution:
Presumably canGenerateReport implementations are allowed to lookup Plexus
components, so the maven-site-plugin must set the TCCL to the appropriate realm
before calling the method and reset it afterwards (as it already does for
isMavenReport). Otherwise the maven-javadoc-plugin would have to set (and
reset) the TCCL itself when looking up the UnArchiver - unless of course they
could switch to a type-based role lookup instead of the existing string-based
one.
Either way, this is something that needs to be resolved between the site and
javadoc plugins.
{code}
at
org.codehaus.plexus.archiver.manager.DefaultArchiverManager.getUnArchiver(DefaultArchiverManager.java:76)
at
org.apache.maven.plugin.javadoc.resolver.ResourceResolver.resolveAndUnpack(ResourceResolver.java:357)
at
org.apache.maven.plugin.javadoc.resolver.ResourceResolver.resolveFromArtifacts(ResourceResolver.java:302)
at
org.apache.maven.plugin.javadoc.resolver.ResourceResolver.resolveDependencySourcePaths(ResourceResolver.java:143)
at
org.apache.maven.plugin.javadoc.AbstractJavadocMojo.getDependencySourcePaths(AbstractJavadocMojo.java:2169)
at
org.apache.maven.plugin.javadoc.AbstractJavadocMojo.getSourcePaths(AbstractJavadocMojo.java:2058)
at
org.apache.maven.plugin.javadoc.JavadocReport.canGenerateReport(JavadocReport.java:213)
at
org.apache.maven.plugins.site.DefaultMavenReportExecutor.canGenerateReport(DefaultMavenReportExecutor.java:272)
at
org.apache.maven.plugins.site.DefaultMavenReportExecutor.buildMavenReports(DefaultMavenReportExecutor.java:254)
at
org.apache.maven.plugins.site.AbstractSiteRenderingMojo.getReports(AbstractSiteRenderingMojo.java:208)
at org.apache.maven.plugins.site.SiteMojo.execute(SiteMojo.java:105)
at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:107)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:195)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:140)
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:314)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:151)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:445)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:168)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:132)
{code}
> Maven3 conflict with plexus-archiver
> ------------------------------------
>
> Key: MNG-4833
> URL: http://jira.codehaus.org/browse/MNG-4833
> Project: Maven 2 & 3
> Issue Type: Bug
> Affects Versions: 3.0-beta-3
> Environment: Apache Maven 3.0-SNAPSHOT (r999839; 2010-09-22
> 11:43:26+0200)
> Java version: 1.7.0-ea
> Java home: /home/pether/tools/jdk1.7.0/jre
> Default locale: en_US, platform encoding: UTF-8
> OS name: "linux" version: "2.6.32-25-generic" arch: "amd64" Family: "unix"
> Reporter: Pether Sorling
> Attachments: testmaven3.zip
>
>
> Verson 2.7 and 2.8-SNAPSHOT have some issues with maven3. Works with 2.6.1,
> different version of plexus archiver conflicts with maven.
> failed to get Reports:
> org.codehaus.plexus.archiver.zip.ZipUnArchiver$__plexus5 cannot be cast to
> org.codehaus.plexus.archiver.UnArchiver
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