How can I lock the version of a Maven plugin I want to use?
I have the PMD plugin configured like so:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-pmd-plugin</artifactId>
<version>2.5</version>
<configuration>
<outputDirectory>target/pmd</outputDirectory>
<targetDirectory>target/</targetDirectory>
<aggregate>true</aggregate>
<targetJdk>1.6</targetJdk>
<rulesets>
<ruleset>rulesets/basic.xml</ruleset>
<ruleset>rulesets/codesize.xml</ruleset>
<ruleset>rulesets/coupling.xml</ruleset>
<ruleset>rulesets/design.xml</ruleset>
<ruleset>rulesets/imports.xml</ruleset>
<ruleset>rulesets/logging-java.xml</ruleset>
<ruleset>rulesets/optimizations.xml</ruleset>
<ruleset>rulesets/strings.xml</ruleset>
<ruleset>rulesets/unusedcode.xml</ruleset>
</rulesets>
</configuration>
</plugin>
Last night, my nightly build failed and I can no longer run any pmd goals because it is trying to find version 2.6-SNAPSHOT of that plugin. Why is it even trying to find 2.6-SNAPSHOT if I have a version tag that says 2.5? Also, 2.6-SNAPSHOT is not in central - why does my maven client think it exists?
Maven version: 2.0.9
Java version: 1.6.0_17
OS name: "linux" version: "2.6.24-24-generic" arch: "i386" Family: "unix"
Edit:
I upgraded to maven 2.2.1 and observed the same issue as before. I was able to get the project to build by removing 2.6-SNAPSHOT from the metadata in my repository (.m2/repository/org/apache/maven/plugins/maven-pmd-plugin/maven-metadata-central.xml). I also set the latestVersion tag to 2.5. This is obviously not the solution, because I'd have to either deploy my own plugin or change the cached version on all clients.