[regression] String-based component lookups performed by report mojos fail with ClassCastException --------------------------------------------------------------------------------------------------
Key: MNG-5019 URL: http://jira.codehaus.org/browse/MNG-5019 Project: Maven 2 & 3 Issue Type: Bug Components: Class Loading Affects Versions: 3.0.2 Reporter: Benjamin Bentmann >From the IT MSITE-506 of the Site Plugin: {noformat} Caused by: java.lang.ClassCastException: org.codehaus.plexus.archiver.zip.ZipUnArchiver$__plexus6 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:299) at org.apache.maven.plugins.site.DefaultMavenReportExecutor.buildMavenReports(DefaultMavenReportExecutor.java:278) {noformat} Cause is the following container scenario: {noformat} maven-realm site-plugin-realm <-- plexus lookup realm javadoc-plugin-realm <-- TCCL {noformat} where both the Site Plugin and the Javadoc Plugin depend on plexus-archiver. The way the container resolves string-based roles is to first check the lookup realm, then the TCCL for the interface/component. In the setup above, this ends up using components from the Site Plugin for the execution of the Javadoc Plugin, boom. After talking with Stuart, the fix seems to be as simple as just nullifying the lookup realm, thereby consequently using the TCCL for the lookups. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.codehaus.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira