[ http://jira.codehaus.org/browse/MNGECLIPSE-157?page=comments#action_71232 ] Eugene Kuleshov commented on MNGECLIPSE-157: --------------------------------------------
Please attach simple Eclipse project and exact steps how to reproduce this issue. > Runtime exceptions in embedder should be caught and logged by the plugin. > ------------------------------------------------------------------------- > > Key: MNGECLIPSE-157 > URL: http://jira.codehaus.org/browse/MNGECLIPSE-157 > Project: Maven 2.x Extension for Eclipse > Issue Type: Wish > Components: Dependency Resolver > Affects Versions: 0.0.9 > Reporter: Tuomas Kiviaho > Assigned To: Eugene Kuleshov > > When inserting a dependency (in my case jaxen) which has a dependency of it's > own (xercesImpl) to a project that has a parent which has the same dependency > (xercesImpl) already declared (scope was system) a NullPointerException > emerges to the WTP xml editors topmost row and classpath container doesn't > show anymore any of the dependencies. Workspace log file and console did not > show any anomalities. > With standalone maven everything work just fine, but with embedder I managed > to pull out a following stacktrace > java.lang.NullPointerException > at > org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:82) > at > org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:63) > at > org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolveTransitively(DefaultArtifactResolver.java:233) > at > org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolveTransitively(DefaultArtifactResolver.java:211) > at > org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolveTransitively(DefaultArtifactResolver.java:192) > at > org.apache.maven.project.DefaultMavenProjectBuilder.buildWithDependencies(DefaultMavenProjectBuilder.java:342) > at > org.apache.maven.project.DefaultMavenProjectBuilder.buildWithDependencies(DefaultMavenProjectBuilder.java:289) > at > org.apache.maven.embedder.MavenEmbedder.readProjectWithDependencies(MavenEmbedder.java:277) > at org.maven.ide.eclipse.Maven2Executor.main(Maven2Executor.java:53) > This seemed very familiar and here's a link > <http://jira.codehaus.org/browse/MPIR-2> to another project. This issue has > been around for quite a while and despite the status FIXED, I don't think > this actually is fixed but at least it has been patched couple of times. > Workaround: Add an exclusion clause to the new dependency if you have it's > dependencies already declared in parent. > What is left for this project could be a more informative way to express > runtime exceptions/errors when embedder fails to do so. NullPointerException > in the xml editor gives a wrong expression where the problem actually > resides. I'd prefer m2 console over eclipse workspace log. -- 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
