NPE when using maven-tasks-plugin 1.2.0
---------------------------------------
Key: MAVEN-1606
URL: http://jira.codehaus.org/browse/MAVEN-1606
Project: maven
Type: Bug
Components: core
Versions: 1.1-beta-2
Reporter: Felipe Leme
Priority: Blocker
Attachments: project.xml
I was doing some tests with Maven 1.1 (from CVS) and got a nasty NPE. After
debugging it, I concluded it was caused while reading the maven-tasks-plugin,
which apparently has a bad <resource> tag inside its POM. But even if the
problem is on the plugin's POM, maven should handle the issue better, otherwise
it would be a nightmare to migrate old projects from 1.0 to 1.1
So, I'm providing a simple test case for this issue (and will try to provide a
patch fixing it as well); running it raises the following exception:
$ maven
__ __
| \/ |__ _Apache__ ___
| |\/| / _` \ V / -_) ' \ ~ intelligent projects ~
|_| |_\__,_|\_/\___|_||_| v. 1.1-SNAPSHOT
plugin maven-cruisecontrol-plugin-1.6 is cached (dynatag dep) but no longer pres
ent
Cache invalidated due to out of date plugins
org.apache.maven.MavenException: Unknown error reading project
at org.apache.maven.MavenUtils.getProject(MavenUtils.java:146)
at org.apache.maven.plugin.JellyScriptHousing.getProject(JellyScriptHous
ing.java:105)
at org.apache.maven.plugin.PluginManager.installPlugin(PluginManager.jav
a:909)
at org.apache.maven.plugin.PluginManager.installPlugin(PluginManager.jav
a:878)
at org.apache.maven.plugin.PluginManager.processDependencies(PluginManag
er.java:458)
at org.apache.maven.plugin.PluginManager.attainGoals(PluginManager.java:
658)
at org.apache.maven.MavenSession.attainGoals(MavenSession.java:263)
at org.apache.maven.cli.App.doMain(App.java:486)
at org.apache.maven.cli.App.main(App.java:1230)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
$
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.werken.forehead.Forehead.run(Forehead.java:551)
at com.werken.forehead.Forehead.main(Forehead.java:581)
--- Nested Exception ---
java.lang.NullPointerException
at java.io.File.<init>(File.java:180)
at org.apache.maven.MavenUtils.makeAbsolutePath(MavenUtils.java:826)
at org.apache.maven.project.Project.resolveDirectory(Project.java:981)
at org.apache.maven.project.Project.resolveDirectories(Project.java:867)
at org.apache.maven.project.Project.initialize(Project.java:547)
at org.apache.maven.MavenUtils.getProject(MavenUtils.java:125)
at org.apache.maven.plugin.JellyScriptHousing.getProject(JellyScriptHous
ing.java:105)
at org.apache.maven.plugin.PluginManager.installPlugin(PluginManager.jav
a:909)
at org.apache.maven.plugin.PluginManager.installPlugin(PluginManager.jav
a:878)
at org.apache.maven.plugin.PluginManager.processDependencies(PluginManag
er.java:458)
at org.apache.maven.plugin.PluginManager.attainGoals(PluginManager.java:
658)
at org.apache.maven.MavenSession.attainGoals(MavenSession.java:263)
at org.apache.maven.cli.App.doMain(App.java:486)
at org.apache.maven.cli.App.main(App.java:1230)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.werken.forehead.Forehead.run(Forehead.java:551)
at com.werken.forehead.Forehead.main(Forehead.java:581)
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