Reporting IllegalArgumentException plugin comparator used for normal
dependencies
---------------------------------------------------------------------------------
Key: MVERSIONS-67
URL: http://jira.codehaus.org/browse/MVERSIONS-67
Project: Maven 2.x Versions Plugin
Issue Type: Bug
Affects Versions: 1.0
Environment: Apache Maven 2.2.1 (r801777; 2009-08-06 21:16:01+0200)
Java version: 1.6.0_12
Java home: C:\Program Files\Java\jdk1.6.0_12\jre
Default locale: fr_CH, platform encoding: Cp1252
OS name: "windows xp" version: "5.1" arch: "x86" Family: "windows"
Reporter: Pablo
Hi,
First, thanks for this great plugin; I was really waiting for such a feature.
I encountered a bug using the reporting feature.
Using the following POM:
{code}
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>bla</groupId>
<artifactId>bla</artifactId>
<version>1.0</version>
<url>http://blabla.grd</url>
<dependencies>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.4</version>
</dependency>
</dependencies>
<reporting>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>versions-maven-plugin</artifactId>
<version>1.0</version>
<reportSets>
<reportSet>
<reports>
<report>dependency-updates-report</report>
<report>plugin-updates-report</report>
<report>property-updates-report</report>
</reports>
</reportSet>
</reportSets>
</plugin>
</plugins>
</reporting>
</project>
{code}
Running *mvn site* (with an empty local repository) produces the following
error:
{code}
[INFO] Generating "Plugin Updates Report" report.
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] This comparator can only be used to compare Plugin and ReportPlugin
instances
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.IllegalArgumentException: This comparator can only be used to compare
Plugin and ReportPlugin instances
at
org.codehaus.mojo.versions.utils.PluginComparator.compare(PluginComparator.java:49)
at java.util.TreeMap.put(TreeMap.java:530)
at java.util.TreeSet.add(TreeSet.java:238)
at java.util.AbstractCollection.addAll(AbstractCollection.java:305)
at java.util.TreeSet.addAll(TreeSet.java:295)
at
org.codehaus.mojo.versions.PluginUpdatesReport.doGenerateReport(PluginUpdatesReport.java:97)
at
org.codehaus.mojo.versions.AbstractVersionsReport.executeReport(AbstractVersionsReport.java:248)
at
org.apache.maven.reporting.AbstractMavenReport.generate(AbstractMavenReport.java:90)
at
org.apache.maven.plugins.site.ReportDocumentRenderer.renderDocument(ReportDocumentRenderer.java:139)
at
org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderModule(DefaultSiteRenderer.java:269)
at
org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.render(DefaultSiteRenderer.java:101)
at
org.apache.maven.plugins.site.SiteMojo.renderLocale(SiteMojo.java:133)
at org.apache.maven.plugins.site.SiteMojo.execute(SiteMojo.java:100)
at
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
at
org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
{code}
Running *mvn versions:display-plugin-updates* works fine; removing the
*<dependencies>* block as well.
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