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https://jira.codehaus.org/browse/MVERSIONS-166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=281587#comment-281587
]
Anthony Whitford commented on MVERSIONS-166:
--------------------------------------------
I think the use case causing this issue is that I have a plugin with a
dependency override with a version range:{code:xml}
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<version>2.7</version>
<dependencies>
<dependency>
<groupId>com.acme</groupId>
<artifactId>my-dev-rules</artifactId>
<version>(2.6,2.7-SNAPSHOT]</version>
</dependency>
</dependencies>
<configuration>
<configLocation>/my-checkstyle-rulesets/checkstyle-required.xml</configLocation>
</configuration>
<executions>
<execution>
<id>checkstyle-required</id>
<goals>
<goal>check</goal>
</goals>
<phase>verify</phase>
</execution>
</executions>
</plugin>
{code}
I know the above looks a little crazy -- but there is a reason for this
madness...
If I replace the version range with a distinct version (2.7-SNAPSHOT), the
project site builds fine.
> NPE Generating "Plugin Updates Report" report.
> ----------------------------------------------
>
> Key: MVERSIONS-166
> URL: https://jira.codehaus.org/browse/MVERSIONS-166
> Project: Maven 2.x Versions Plugin
> Issue Type: Bug
> Affects Versions: 1.2
> Environment: Windows XP, Java 6 Update 24, Maven 2.2.1
> Reporter: Anthony Whitford
> Priority: Critical
>
> I added the versions-maven-plugin to my project, and it breaks my build like:
> {noformat}
> [INFO] Generating "Plugin Updates Report" report.
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO]
> ------------------------------------------------------------------------
> [INFO] null
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Trace
> java.lang.NullPointerException
> at
> org.codehaus.mojo.versions.PluginUpdatesDetails.isDependencyUpdateAvailable(PluginUpdatesDetails.java:68)
> at
> org.codehaus.mojo.versions.PluginUpdatesRenderer.renderSummaryTotalsTable(PluginUpdatesRenderer.java:132)
> at
> org.codehaus.mojo.versions.PluginUpdatesRenderer.renderBody(PluginUpdatesRenderer.java:71)
> at
> org.apache.maven.reporting.AbstractMavenReportRenderer.render(AbstractMavenReportRenderer.java:65)
> at
> org.codehaus.mojo.versions.PluginUpdatesReport.doGenerateReport(PluginUpdatesReport.java:109)
> at
> org.codehaus.mojo.versions.AbstractVersionsReport.executeReport(AbstractVersionsReport.java:248)
> at
> org.apache.maven.reporting.AbstractMavenReport.generate(AbstractMavenReport.java:90)
> ...
> {noformat}
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